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UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
 pressreleaseearningsq3a03.gifrock-20201231_g1.gif
FORM 10-K
x
ANNUAL REPORT PURSUANT TO SECTION 13 OR 15 (d) OF THE SECURITIES ACT OF 1934
For the fiscal year ended December 31, 2020
OR
For the fiscal year ended December 31, 2018
OR
¨TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 (d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the transition period from to
For the transition period from  to
Commission File Number 0-22462
GIBRALTAR INDUSTRIES, INC.
(Exact name of Registrant as specified in its charter)
Delaware16-1445150
(State or other jurisdiction of incorporation organization))(I.R.S. Employer Identification No.)
3556 Lake Shore Road
P.O. Box 2028
Buffalo ,New York14219-022814219-0228
(addressAddress of principal executive offices)(zip code)
Registrant’s telephone number, including area code: (716) 826-6500
Registrant’s telephone number, including area code: (716) 826-6500
Securities registered pursuant to Section 12(b) of the Act:
Securities registered pursuant to Section 12(b) of the Act:
Title of each classTrading SymbolName of each exchange on which registered
Common Stock, $0.01 par value per shareROCKNASDAQ Global SelectStock Market
Securities registered pursuant to Section 12(g) of the Act: NONE
Indicate by checkmarkcheck mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.    Yes ¨   No x
Indicate by checkmarkcheck mark if the registrant is not required to file report pursuant to Section 13 or Section 15(d) of the Act.   Yes ¨   No  x
Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  x    No  ¨
Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    Yes  x    No  ¨
Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of the Registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of the Form 10-K or any amendment to this Form 10-K.  x
Indicate by checkmark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definition of “large accelerated filer”, “accelerated filer”, “small reporting company”, and "emerging growth company" in Rule 12b-2 of the Exchange Act.
Large accelerated filerxAccelerated filer¨Emerging growth company
Non-accelerated filer¨Smaller reporting company¨Emerging growth company¨
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨
Indicate by checkmarkcheck mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report.        
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act).    Yes  ¨    No  x
The aggregateAggregate market value of thevoting Common Stock outstanding and held by non-affiliates (as defined in Rule 405 under the Securities Act of 1933) of the registrant based upon the closing sale priceas of the Common Stock on the NASDAQ Global Select Market on June 30, 2018, the last business day of the registrant’s most recently completed second quarter, was approximately $1.22020 was: $1.5 billion.
As of February 25, 2019,24, 2021, the number of common shares outstanding was: 32,155,084

32,570,961.
DOCUMENTS INCORPORATED BY REFERENCE
Portions of the Registrant’s Definitive Proxy Statement to be filed for its 2019Annual2021 Annual Meeting of Stockholders
are incorporated by reference into Part III of this Annual Report on Form 10-K.

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Form 10-K Index
 
Page
Number
Page
NumberPART I
Item 1
Item 11A
Item 1A1B
Item 1B
Item 2
Item 3
Item 4
Item 5
Item 6
Item 7
Item 7A
Item 8
Item 9
Item 9A
Item 9B
Item 10
Item 11
Item 12
Item 13
Item 14
Item 15

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Safe Harbor Statement
Certain information set forth herein includes statements that express our opinions, expectations, beliefs, plans, objectives, assumptions or projections regarding future events or future results and, therefore, are, or may be deemed to be, “forward-looking statements.” These forward-looking statements can generally be identified by the use of forward-looking terminology, including the terms “believes,” “estimates,” “anticipates,” “expects,” “seeks,” “projects,” “intends,” “plans,” “may,” “will” or “should” or, in each case, their negative or other variations or comparable terminology. These forward-looking statements include all matters that are not historical facts. They include statements regarding our intentions, beliefs or current expectations concerning, among other things, our results of operations, financial condition, liquidity, prospects, growth, competition, strategies and the industries in which we operate. By their nature, forward-looking statements involve risks and uncertainties because they relate to events and depend on circumstances that may or may not occur in the future. We believe that these risks and uncertainties include, but are not limited to, those described in Item 1A “Risk Factors.” Those factors should not be construed as exhaustive and should be read with the other cautionary statements in Item 1A “Risk Factors.” Although we base these forward-looking statements on assumptions that we believe are reasonable when made, we caution you that forward-looking statements are not guarantees of future performance and that our actual results of operations, financial condition and liquidity and the development of the industries in which we operate may differ materially from those made in or suggested by the forward-looking statements contained herein. In addition, even if our results of operations, financial condition and liquidity and the development of the industries in which we operate are consistent with the forward-looking statements contained in this document, those results or developments may not be indicative of results or developments in subsequent periods. Given these risks and uncertainties, you are cautioned not to place undue reliance on these forward-looking statements. Any forward-looking statements that we make herein speak only as of the date of those statements, and we undertake no obligation to update those statements or to publicly announce the results of any revisions to any of those statements to reflect future events or developments. Comparisons of results for current and any prior periods are not intended to express any future trends or indications of future performance, unless expressed as such, and should only be viewed as historical data.
PART I
 
Item 1.Business
The Company
Gibraltar Industries, Inc. (the "Company") is a leading manufacturer and distributorprovider of building products and services for residential, industrial, infrastructure,the renewable energy, conservation, residential and conservationinfrastructure markets. Our business strategy focuses on significantly elevatingGibraltar’s mission is to create compounding and accelerating the growth and financial returns of the Company. We strive to deliver best-in-class, sustainable value creation for our shareholders and stakeholders with strong and relevantleadership positions in higher growth, profitable end markets focused on addressing some of the world's most challenging opportunities. The foundation of the Company's strategy is built on three core pillars: Business System, Portfolio Management, and Organization Development.

1.Business System reflects the necessary systems, processes, and management tools required to deliver consistent and continuous performance improvement, every day. Our business system is a critical enabler to grow, scale, and deliver our plans. Our business system is focused on deploying effective tools to drive growth, improve operating performance, and develop the organization. Our Business System challenges existing paradigms, drives day-to-day performance, forces prioritization of resources, challenges our business models, and brings focus to new product and services development and innovation.

2.Portfolio Management is focused on optimizing the Company’s business portfolio and ensures our financial capital and human resources are effectively and efficiently deployed to deliver sustainable, profitable growth while increasing our relevance with customers and shaping our markets. In 2020, the Company transacted the following acquisitions:
Thermo Energy Systems ("Thermo) - January 2020,
Delta Separations (“Delta”) - February 2020
Architectural Mailboxes - October 2020
Sunfig Corporation - December 2020
TerraSmart LLC ("TerraSmart") - December 2020

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During the fourth quarter of 2020, the Company made the decision to classify its Industrial business as held for sale and report its results as discontinued operations.

3.Organization Development drives the long-term.Company’s continuous focus on strengthening and scaling the organization to execute the Company’s plans and meet commitments. The Company aspires to make our place of work the "Best Place to Work", where we focus on creating an environment for our people to have the best opportunity for success, continue to develop, grow, and learn. At core of this pillar is the Company’s development process focused on helping employees reach their potential, improve performance, develop career roadmaps, identify ongoing education requirements, and respective succession plans. We believe thisdoing so helps us attract and retain the best people so we can be achieved fromexecute our business plans.

COVID-19 Update

While the Company continues to encounter challenges and uncertainty associated with COVID-19, the pandemic did not have a transformational change in the Company’s portfolio and its financial results. Our business strategy has four key elements, or "pillars," which are: operational excellence, product innovation, portfolio management, and acquisitions as a strategic accelerator.

Operational excellence is our first pillar in this strategy. We focus on reducing complexity, adjusting costs and simplifying our product offering through 80/20 initiatives (“80/20”). 80/20 is the practice of focusingmaterial adverse effect on our largestreported results during 2020. While most of our operations have been considered essential businesses and best opportunities (the “80”)all have remained open during the pandemic outside of a few days, the decision to keep our team intact despite some initial market softness for certain businesses put us in a position to deliver revenue and eliminating complexity associated with less profitable opportunities (the “20”). The executionearnings growth throughout 2020. Our top priority continues to be focused on our organization - keeping our team and their families as safe as possible, our supply chain operating well, and providing a high level of 80/20 across our businesses, along with in-lining and market rate of demand replenishment initiatives, and outsourcing initiatives for our lower volume products providedresponsiveness to our customers to provide the appropriate value proposition, has andcustomer needs. We will continue to improveproactively execute our profitability, investment in inventorypandemic “playbook” as we enter 2021 and fixed assets,make adjustments to our operating protocols as navigate forward. The extent to which our operations will be impacted by the outbreak will largely depend on future developments, which remain uncertain and our service levelschallenging to customers.
Product innovation is our second strategic pillar. Innovation is centered on the allocation ofpredict, including new and existing resources to opportunities that we believe will produce sustainable returns. Our focus is on driving top line growth with new and innovative products. We are focused on those products and technologies that have relevance to the end-user and can be differentiated from our competition. Our trade focus initiatives are tailored toward reallocating sales and new product development talent to target specific end user groups in order to better understand their needs and the various market opportunities that may be available. This effort is expected to produce ideas and opportunities that generate profitable growth. Our focus on innovation is centered on our current end markets, including, postal and parcel products, residential air management, infrastructure, renewable energy and conservation. These respective markets are expected to grow based on demand for: centralized mail and parcel delivery systems, including solutions for the last

mile of delivery; zero carbon footprint homes; energy sources not dependent on fossil fuels, and the growing demand for locally grown produce.

The third pillar of our strategy is portfolio management, which is a natural adjunct to the 80/20 initiative. Using the 80/20 process, we conduct strategic reviews of our customers and end markets, and allocate leadership time, capital and resources to the highest-potential platforms and businesses. As a result, we have sold and divested businesses and product lines which have helped contributerequirements or regulations mandated by government authorities. Refer to the Company's realization of a higher rate of return on invested capital. We view portfolioOutlook section in this management as a continuous process that will remain an important part of our strategy as we lookdiscussion and analysis for consideration relative to improve Gibraltar's long-term financial performance.future periods.

The fourth pillar of our strategy is acquisitions. We have targeted four key markets in which to make strategic acquisitions which are served by existing platforms within the Company. The target markets include: postal, parcel and storage solutions; infrastructure; residential air management; and renewable energy and conservation. These platforms are all in large markets in which the underlying trends for customer convenience and safety, energy-savings and resource conservation are of increasing importance and are expected to drive long-term demand. We believe these markets also offer the opportunity for higher returns on our investments than those we have generated in the past. The acquisitions of Rough Brothers Manufacturing, Inc., RBI Solar, Inc., and affiliates, collectively known as "RBI" in June 2015, Nexus Corporation ("Nexus") in October 2016, Package Concierge in February 2017, and most recently, SolarBOS in August 2018, were the direct result of this fourth pillar strategy. We also consider businesses outside of these four markets, as we continually search out opportunities to grow our business in large markets with expected growth in demand for the foreseeable future, where we can add value through our manufacturing expertise, 80/20 process and purchasing synergies.


The Company serves customers primarily throughoutin North America. Our customers include major home improvement retailers, wholesalers, industrial distributors, contractors, solarAmerica including renewable energy (solar) developers, and institutional and commercial growers of plants.food and plants, home improvement retailers, wholesalers, distributors, and contractors. As part of our continuing operations at December 31, 2018,2020, we operated 4038 facilities, comprised of 3027 manufacturing facilities, fivetwo distribution centers, and fivenine offices, which are located in 1817 states, Canada, China, and Japan. These facilities give us a base of operationsOur operational infrastructure provides the necessary scale to provide customer support delivery, service and quality to a number oflocal, regional, and national customers and providing us with manufacturing and distribution efficiencies in North America, as well as a presence in the Asianeach of our markets.


The Company operates and reports its results in the following three reporting segments:
Residential Products;
Industrial and Infrastructure Products; and
Renewable Energy and ConservationConservation;

Residential Products;
Infrastructure Products.

The following table sets forthsummarizes the primary products, applications, and end markets for each segment:
Residential ProductsRenewable Energy and Conservation Segment
ProductProducts & ServicesApplicationsEnd MarketUsers
Renewable Energy: Design, engineering, manufacturing and installation of solar racking and electrical balance of systems
Roof and foundation ventilation productsVentilation and whole-house air flowCommercial & distributed generation scale commercial solar installations on any type of terrain
rock-20201231_g2.jpg
Residential: new construction and repair and remodelingSolar developers; power companies; solar energy EPC contractors
Centralized mail systems and electronic package solutionsSecure storage for mail and package deliveries
Rain dispersion, trimsConservation: Provide growing and flashings, other accessoriesprocessing solutions including the designing, engineering, manufacturing and installation of greenhouses, and botanical extraction systemsWater protection; sun protectionRetail, vegetable, flowers, cannabis, commercial, institutional and conservatories, car wash tunnels, botanical oil extractionOrganic produce growers; retail garden centers; conservatories and botanical gardens; floriculture growers; agricultural research; botanical oil processors

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Industrial and InfrastructureResidential Products Segment
 
ProductApplicationsEnd Market
ProductRoof and foundation ventilation productsApplicationsEnd Market
Fabricated expanded metalVentilation and perforated metal productsPerimeter security barriers; walkways / catwalks; filtration; architectural facadeswhole-house air flow
rock-20201231_g2.jpg
IndustrialResidential: new construction and commercial construction, automotive, energyrepair and power generationremodeling
Centralized mail systems and electronic package solutionsSecure storage for mail and package deliveries
Retractable awnings & gutter guardsSun protection; gutter protection
Rain dispersion, trims and flashings, other accessoriesWater & protection from natural elements
Infrastructure Products Segment
ProductApplicationsEnd Market
Structural bearings, expansion joints and pavement sealant for bridges, airport runways and roadways, elastomeric concrete, bridge cable protection systemsPreserve functionality under varying weight, wind, temperature and seismic conditionsBridge and elevated highway construction, airport pavements
Renewable Energy and Conservation Segment
ProductApplicationsEnd Users
Solar racking and electrical balance of systems: design, engineer, manufacture and installationSmall scale commercial solar installations
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Solar developers; power companies; solar energy EPC contractors
Greenhouses: design, engineer, manufacture and installationRetail, commercial, institutional and conservatoriesRetail garden centers; conservatories and botanical gardens; commercial growers; public and private agricultural research


We believe ourThe Company’s operating segmentsbusinesses have established reputations as industry leaders with respect to quality, service and innovation and have achieved strong competitiveleadership positions in our markets. We attribute their competitive standingattractive end markets by building core capabilities in the markets primarily to the following strengths:
Leading market share. We have a leading market position in many of theinnovation, new products and services, we offer,manufacturing and we estimate thatfield operations, business systems, quality performance, along with a majorityhealthy balance sheet and the strength of our net sales for the year ended December 31, 2018 were derived from the salepeople. We will continue our focus of productstime, talent, and energy on strengthening our position in whicheach market we had one of the leading U.S. market shares. We believe we have leading market shares in five distinct product families: roof-related ventilation;serve.
Attractive End Markets. Our markets are focused on solving global challenges as it relates to accelerating renewable energy generation, growing food and plants more environmentally-friendly and efficient way maintaining healthy home environments, supporting postal and parcel storage;home delivery, and improving our country’s transportation infrastructure and ways of transporting people.
Value-Added Products and Services. We provide industry-best solutions to our customers: racking, foundation, and electrical systems for photovoltaic (PV) solar systems, commercial growing greenhouses and processing extraction technology for biologically grown food, cannabis, and other plants; roof-related ventilation to support healthy home environments; postal and parcel storage for home and retail sites; and structural bearings and expansion joints for bridges and other structures; institutional and retail greenhouses; and fixed-tilt ground mount racking for photovoltaic (PV) solar systems.
Provider of value-added products and related services. We increasingly focus on providing innovative value-added products and related services, such as centralized mail systems and electronic package solutions, expansion joints and structural bearings for roadways and bridges, roof and foundation ventilation products, solar racking systems, and greenhouses which can solve end customer needs while also helping to improve our margins and profitability.transportation structures. Our products use complex and demanding production and treatment processes that require advanced production equipment, sophisticated technology and exacting quality control measures, along with specialized design and engineering skills. We also focus our acquisition strategy on manufacturers offering engineered products and services in key growth markets.are highly engineered, supported with intellectual property, and driven by effective business systems and IT infrastructure.
Commitment to qualityCustomer & Quality. Gibraltar’sWe strive to be connected directly with our end customers, where we receive unfiltered feedback on performance, insight on customer problems and opportunities, and cooperation on ideas for new products, services, and business model optimization. The percentage of our total business supported directly with end users of our products and services was approximately 54% and we expect this to grow in future years. Our commitment to quality is a core operating tenet for the Company, and our quality management systems are designed to ensure that we meet the needsdeliver to customer and desired level of excellence, of our customers and other stakeholders,stakeholder expectations while meeting statutory and regulatory requirements related to our products orand services. Our policies, processes and procedures required for planning and execution, are based on the principles of: customer focus, leadership, engagement of people, process approach, improvement, evidence-based decision-making and relationship management.


Strong liquidity profile. We strive to manage our cash resources to ensure we have sufficient liquidity to fund growth initiatives, support the seasonality of our businesses, potential downturns inmanage effectively through economic activity, and to fund growth initiatives. During 2017 and 2018, we purchased Package Concierge for approximately $19 million and SolarBOS for approximately $6 million, respectively, both of which were funded by our cash on hand. Our liquidity ascycles. As of December 31, 20182020, our liquidity was $588$341 million,

including $297$32 million of cash and $291$309 million of availability under our then existing revolving credit facility. Subsequent to December 31, 2018, we redeemed all $210 million of our 6.25% Senior Subordinated Notes with existing cash on hand and refinanced our Senior Credit Agreement as further described below. We believe that our resulting low leverage and increasedample borrowing capacity, along with enhanced flexibility in our new Senior Credit Agreement, provide us with ample liquidity which allows us to support our strategic initiatives, successfully manage our business, meet the demands of our customers, weather the cyclicality of certain end markets and take advantage of growth opportunities.
Recent developments

On January 2, 2019, the Company appointed William T. Bosway as President and Chief Executive Officer of the Company and a member of the Board of Directors. Over the past 29 years, Mr. Bosway has worked for two Fortune 500 industrial companies and brings to the Company strong leadership skills and significant experience in acquisitions, driving organic growth, lean manufacturing and continuous improvement techniques.
On January 24, 2019, we entered into the Company's Sixth Amended and Restated Credit Agreement (the "Senior Credit Agreement") which includes a 5-year, $400 million revolving credit facility. The Senior Credit Agreement also provides the Company the opportunity, upon request, to increase the amount of the revolving credit facility to $700 million. In conjunction with entering into the Senior Credit Agreement on February 1, 2019, the Company redeemed all $210 million of its outstanding 6.25% Senior Subordinated Bonds. The amended Senior Credit Agreement, provides us with the financial capacity to fund our ongoing business requirements, strategic initiatives, and acquisition opportunities.
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Recent developments
During 2020, the Company with access to capitaltransacted the following acquisitions:

Business AcquiredDate of Acquisition in 2020
Preliminary purchase price
( in millions)1
Description
TerraSmart LLCDecember 31$228.0 Provider of screw-based, ground-mount solar racking technology, particularly used for solar projects installed on challenging terrain
Sunfig CorporationDecember 11$4.0 Provider of software solutions that optimize solar energy investments through upstream design, performance and financial modeling
Architectural MailboxesOctober 15$27.0 Provider, designer, and developer of decorative residential mailboxes and related products
Delta SeparationsFebruary 13$46.0 Provider of ethanol-based extraction systems manufacturer and training and laboratory design and operations consultative partner
Thermo Energy SystemsJanuary 15$7.0 Provider of commercial greenhouse solutions in North America supporting the biologically grown organic food market

Note 1: Except for TerraSmart, which was financed through a combination of cash on hand and improves our financial flexibility.
On August 21, 2018,borrowings under the Company acquiredCompany's revolving credit facility, all of the outstanding stockabove 2020 acquisitions were funded from cash on hand.

During the fourth quarter of SolarBOS for approximately $6 million subject2020, the Company committed to a working capital adjustment and certain other adjustments provided for in the stock purchase agreement. SolarBOS isplan to dispose its Industrial business as a provider of electrical balance of systems products, which consists of electrical components such as wiring, switches, and combiner boxes that support photovoltaic systems, for the U.S. solar renewable energy market. The results of operations of SolarBOS have been included in the Renewable Energy and Conservation segment of the Company's consolidated financial statements from the date of acquisition.
On February 22, 2017, the Company acquired all of the outstanding stock of Package Concierge for $19 million. Package Concierge is a leading provider of multifamily electronic package delivery locker systems in the United States. The results of operations of Package Concierge have been included within the Company's Residential Products segment of the Company's consolidated financial statements from the date of acquisition.
On December 2, 2016, as partresult of its portfolio management initiative,strategy to focus on participation in higher value and faster growing markets. The Industrial business, previously reported in the Company announced its intentions to exit its U.S. bar grating product line and its European residential solar racking business, within the Company’sCompany's Industrial and Infrastructure Products and Renewable Energy and Conservation, segments, respectively. On February 6, 2017, the Company completed the sale of substantially all of its U.S. bar grating product line assets to a third party. In addition, the Company discontinued the operations of its European residential solar racking business during the first quarter of 2017. These businesses contributed a combined $75 million in revenue and pre-tax operating losses of $6 million in 2016. This initiative resulted in the sale and closing of 3 facilities in 2017.segment, has been classified as held for sale.
On October 11, 2016, the Company acquired all of the outstanding stock of Nexus for $24 million. The acquisition was financed through cash on hand. Nexus is a leading provider of commercial-scale greenhouses to customers in the United States. The results of operations of Nexus have been included within the Renewable Energy and Conservation segment of the Company's consolidated financial statements from the date of acquisition.
On April 15, 2016, the Company sold its European industrial manufacturing business to a third party for net of cash proceeds of $8 million. This business, which supplied expanded metal products for filtration and other applications, contributed $36 million in revenue to the Company's Industrial & Infrastructure Products segment in 2015 and had nearly break-even operating results. The divestiture of this business was based on and is consistent with the Company's ongoing portfolio management assessments.
Customers and Products
Our customers are located primarily throughout North America. One customer, a home improvement retailer which purchases from both the Residential Products segment and Renewable Energy and Conservation segment, represented 12%, 12%, and 11%14% of our consolidated net sales for 2018, 2017each of the three years ended December 31, 2020, 2019, and 2016, respectively.2018. No other customer in any segment or segments accounted for more than 10% of our consolidated net sales.
Our products are primarily distributed to our customers using common carriers. We maintain distribution centers that complement our manufacturing plants from which we ship products and ensure on-time delivery while maintaining efficiency within our distribution process.system. Our customers and product offerings by segment are described below.

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Renewable Energy and Conservation
The Renewable Energy and Conservation segment is primarily a designer and manufacturer of fully-engineered solutions for solar mounting systems, greenhouse structures and botanical oil extraction systems. This segment offers a fully integrated approach to the design, engineering, manufacturing and installation of solar racking systems, including electrical balance of systems, and commercial, institutional, and retail greenhouse structures servicing customers, such as community solar owners and developers, organic produce growers, retail garden centers, conservatories and botanical gardens, floriculture growers, agricultural research, and botanical oil processors. With the recently announced acquisitions of TerraSmart and Sunfig, we have 13 manufacturing facilities and 2 distribution centers and operate in the United States, China and Japan.

An integral part of solar racking and greenhouse projects is the fabrication of specifically designed metal structures for highly-engineered applications including: racking and foundation for ground-mounted solar arrays on any type of terrain; single-axis solar tracker solutions; carports that integrate solar PV panels; as well as commercial-scale greenhouses and other glass structures. Both the solar racking and greenhouse projects involve securing glass and plastic to metal and use the same raw materials including steel and aluminum. Most of our production is completed using computer numerical control machines, roll forming machines, laser cutters and other fabrication tools. The structural metal components are designed, engineered, fabricated and installed in accordance with applicable building codes.

We strive to improve our offerings of products by introducing new products, enhancing existing products, adjusting product specifications to respond to commercial building codes and regulatory changes, and providing solutions to contractors and end users. New products introduced in recent years include screw-based racking solutions, software solutions to optimize solar energy investments, botanical oil extraction systems, single-axis tracker systems, metal framed structures for car washes, and solar racking systems for carports and canopies. Our screw-based racking solutions offer rapid installation on any terrain. Our new software solution enables our team to optimize solar project design, utilizing solar irradiance data and topography analysis to quickly and automatically generate multiple potential layouts for complex projects Our botanical oil extraction systems provide equipment for extracting plant oils for hemp, cannabis, and nutraceutical processors. The single-axis tracker systems within our solar mounting solutions group provide flexibility to adapt to a variety of site conditions that impact tracker site designs when using other solutions in the market and can vastly reduce the costs associated with civil work on projects. The patented design eliminates complexities incorporated in the traditional systems, simplifying the operations and maintenance of the system, along with streamlining the installation process. Our car washes serve a market preference for light- transparent structures. Solar racking systems for carports serve as protection for cars from the effects of the sun and intense heat while providing a renewable energy source. Similarly, solar racking systems installed on idle land, such as solid waste landfills, or on challenging, rocky terrain, converts such land into a useful property by providing clean renewable power generating capabilities.
Residential Products
Our Residential Products segment services the residential repair and remodeling and to a lesser extent the new housing construction markets in North America with products including roof and foundation ventilation products, centralized mail systems and electronic package solutions, out-dooroutdoor living products (retractable sun-shades), rain dispersion products and other roofing and relatedconstruction accessories. Our residential product offerings are sold through a number of sales channels including major retail home centers, building material wholesalers, building product distributors, buying groups, roofing distributors, residential contractors, property management companies and postal services distributors and providers. This segment operates 12 manufacturing facilities throughout the United States, giving it a base of operations to provide manufacturing capability of high quality products, customer service, delivery and technical support to a broad network of regional and national customers across North America.
Our roof and foundation ventilation products and accessories include solar powered units. Our centralized mail and electronic package solutions include single mailboxes, cluster style mail and parcel boxes for single and multi-family housing and electronic package locker systems. Our remaining residential product offerings consist of roof edging and flashing, soffits and trim, drywall corner bead, metal roofing and accessories, rain dispersion products, including gutters and accessories, and exterior retractable awnings. Each of these product offerings can be sold separately or as part of a system solution.
Within our Residential Products businesses, we are constantly striving to improve our product/solution offerings by introducing new products, enhancing existing products, adapting to building code and regulatory changes, and providing new and innovative solutions to homeowners and contractors. New products introduced in recent years include electronic parcel lockers, roof top safety kits, chimney caps, heat trace coils, exterior, remote-controlled
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deck awnings for sun protection, and high-efficiency and solar-powered ventilation products. Our electronic parcel lockers and parcel room systems provide residents in multi-family communities a secure storage receptacle to handle both package deliveries and receipt of other delivered goods.goods, along with aiding retail businesses and their customers to transact via buy on line, pick up in store ("BOPUS") transactions. Our ventilation and roof flashing products provide protection and extend the life of structures while providing a safer, healthier environment for residents. Our cluster box mail delivery products provide delivery cost savings to the postal service while offering secure storage for delivered mail and packages. Our building products are manufactured primarily from galvanized and painted steel, anodized and painted aluminum, and various resins.
Within our manufacturing facilities, we leverage significant production capabilities which allow us to both assemble and process a wide range of metals and plastics for our residential products. Most of our production is completed using automatic roll forming machines, stamping presses, welding, paint lines, and injection molding equipment. We maintain our equipment according to a thorough preventive maintenance program allowing us to meet the demanding quality and delivery requirements of our customers. In some cases, the Company sources products from third-party vendors to optimize cost and quality in order to provide the very best and affordable solution for our customers.
Industrial and Infrastructure Products
Our Industrial and Infrastructure Products segment primarily serves a variety of end markets such as industrial and commercial construction, highway and bridge construction automotive,and airports and energy and power generation through a number of sales channels including discrete and process manufacturers, steel fabricators and distributors, commercial and transportation contractors, and power generating utilities.contractors. Our Industrial and Infrastructureinfrastructure product offerings include perimeter security, expanded and perforated metal, plank grating, as well as, expansion joints, and structural bearings, for roadwaysrubber pre-formed seals and bridges.other sealants, elastomeric concrete, and bridge cable protection systems. We operate 10two manufacturing facilities and 3 distribution centers throughoutin the United States and Canada giving us a base of operations to provide customer support, delivery, service, and quality to a number of regional and national customers, and provideproviding us with manufacturing and distribution efficiencies in North America.
Our expanded and perforated metal and plank grating is used in walkways, catwalks, architectural facades, perimeter security barriers, shelving, and other applications where both visibility and security are necessary. Our fiberglass grating is used by our customers where high strength, light weight, low maintenance, corrosion resistance and non-conductivity are required. Our remaining product offerings in this segment include expansion joint systems, bearing assemblies, and pavement sealing systems used in bridges, elevated highways, airport runways, and rail crossings.
We strive to improve our offerings of industrial and infrastructure products by introducing new products, enhancing existing products, adjusting product specifications to respond to commercial building code and regulatory changes, and providing additional solutions to original equipment manufacturers and contractors. New products have been introduced in recent years include customized perforated and expanded metal to penetrate a range of new markets such as architectural facades for buildings (museums, sports stadiums and retail outlets) and perimeter security barriers for protecting critical infrastructure. In addition, we have extendedby extending our transportation infrastructure products into new

markets. For example, our long-lasting pavement sealants for roadways are now being installed on airport runways internationally, our structural bearings for elevated highways and bridges have been installed on an offshore oil production platform, and our corrosion-protection products for cable-suspension bridges are now marketed and sold internationally.
Our production capabilities allow us to process a wide range of metals necessary for manufacturing industrial products. Most of our production is completed using computer numerical control ("CNC") machines, shears, slitters, press brakes, milling, welding, and numerous automated assembly machines. We maintain our equipment according to a thorough preventive maintenance program, including in-house tool and die shops, allowing us to meet the demanding service requirements of many of our customers.
Renewable Energy and Conservation
The Renewable Energy and Conservation segment is primarily a designer and manufacturer of fully-engineered solutions for solar mounting systems and greenhouse structures. This segment offers a fully integrated approach to the design, engineering, manufacturing and installation of solar racking systems, including electrical balance of systems, and commercial, institutional, and retail greenhouse structures servicing customers, such as solar owners and developers, retail garden centers, conservatories and botanical gardens, commercial growers, and schools and universities. We have 8 manufacturing facilities and 2 distribution centers and operate in the United States, China and Japan.
An integral part of each customer project is the fabrication of specifically designed metal structures for highly-engineered applications including: racking for ground-mounted solar arrays; single-axis solar tracker solutions; carports that integrate solar PV panels; as well as commercial-scale greenhouses and other glass structures. Both the solar racking and greenhouse projects involve holding glass and plastic to metal and use the same raw materials including steel and aluminum. Most of our production is completed using CNC machines, roll forming machines, laser cutters and other fabrication tools. The structural metal components are designed, engineered, fabricated and installed in accordance with applicable building codes.
We strive to improve our offerings of products by introducing new products, enhancing existing products, adjusting product specifications to respond to commercial building codes and regulatory changes, and providing solutions to contractors and end users. New products introduced in recent years include single-axis tracker systems, metal framed structures for car washes, and solar racking systems for carports and canopies. Our single-axis tracker systems within our within our solar mounting solutions group, provide flexibility to adapt to a variety of site conditions that impact tracker site designs when using other solutions in the market and can vastly reduce the costs associated with civil work on projects. The patented design eliminates complexities incorporated in the traditional systems, thus simplifying the operations and maintenance of the system, along with streamlining the installation process. Our car washes serve a market preference for light- transparent structures. Solar racking systems for carports serve as protection for cars from the effects of the sun and intense heat while providing a renewable energy resource. Similarly, solar racking systems installed on idle land, such as solid waste landfills, converts such land into a useful property by providing power generating capabilities.
Engineering and Technical Services
Our business segments employ engineers and other technical personnel to perform a variety of key tasks. These personnel staff fully-equipped, modern laboratoriestasks which include the identification and implementation of improvements to support our operations. These laboratories enable us to verify, analyze, and document the physical, chemical, metallurgical, and mechanical propertiesmanufacturing process, redesign of our raw materialsproducts for better performance, the development of new products and products.identification and execution of cost reduction activities. In addition, our engineering staff employs a range of drafting software to design highly specialized and technically precise products. In our Industrial and Infrastructure Products and Renewable Energy and Conservation and Infrastructure Products segments, drawings are signedapproved and sealedstamped by state licensed professional engineers. Technical service personnel also work in conjunction with our sales force in the new product development process to determine the types of products and services that suit the particular needs of our customers.
Suppliers and Raw Materials
Our business is required to maintain sufficient quantities of raw material inventory in order to accommodate our customers’ short lead times. Accordingly, we plan our purchases to maintain raw materials at sufficient levels to satisfy the anticipated needs of our customers. We have implemented enterprise resource planning systems along with a corporate wide SIOP (Sales, Inventory, Operations Planning process) to better manage our inventory, forecast customer orders, enable efficient supply chain management, and allow for more timely counter-measures to changing customer demand and market conditions.

The primary raw materials we purchase are flat-rolled and plate steel, aluminum coil and extrusions, and resins. We purchase flat-rolled and plate steel and aluminum at regular intervals on an as-needed basis, primarily from the major North American mills, as well as, a limited amount from domestic service centers and foreign steel importers. Substantially all of our resins are purchased from domestic vendors, primarily through distributors, with a small amount purchased directly from manufacturers. Supply has historically been adequate from these sources to fulfill our needs. Because of our strategy to develop longstanding relationships in our supply chain, we have been able to
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adjust our deliveries of raw materials to match our required inventory positions to support our on-time deliveries to customers while allowing us to manage our investment in inventory and working capital. Management continually examines and improvesevaluates improvements in our purchasing practices across our geographically dispersed facilities in order to streamline purchasing across similar commodities.
We purchase natural gas and electricity from suppliers in proximity to our operations.

Intellectual Property
We actively protect our proprietary rights by the use of trademark, copyright, and patent registrations. While we do not believe that any individual item of our intellectual property is material, we believe our trademarks, copyrights, and patents provide us with a competitive advantage when marketing our products to customers. We also believe our brands are well recognized in the markets we serve and we believe they stand for high-quality manufactured goods at a competitive price. These trademarks, copyrights, and patent registrations allowhelp us to help maintain product leadership positions for the goods we offer. In 2018, 11%2020, 8% of our annual revenues were generated from patented products.

Sales and Marketing
OurIn 2020, approximately 54% of our revenues were generated from products and services arethat were sold primarily by channel partners who are called on bydirectly to the end user, with the remainder of revenues generated through retailers, wholesalers and distributors, slightly up from 53% in 2019. Continual communication with our sales personnelcustomers allows us to understand their challenges and outside sales representatives located throughout North America.provides us with the opportunity to identify solutions that will meet their needs. We have organized sales teams to focus on specific customers and national accounts through which we provide enhanced supply solutions and improve our ability to increase the numberrelevance of products and services that we sell. Our sales regularly involve competitive bidding processes, and our reputation for meeting delivery requirements and strict specifications make us a preferred provider for many customers.

Our sales staff works with certain retail customers to optimize shelf space for our products which is expected to increase sales at these locations. Our sales regularly involve competitive bidding processes, and our reputation for meeting delivery time lines and strict specifications make us a preferred provider for many customers.
We focus on providing our customers with industry leading customer service. Our retail customers are provided with point-of-sale marketing aids to encourage consumer spending on our products in their stores. Continual communication withWe focus on providing our customers allows us to understand their concerns and provides us with the opportunity to identify solutions that will meet their needs.industry leading customer service. We are able to meet our customers’ demand requirements due to our efficient manufacturing processes and extensive distribution network.
Backlog
Backlog represents the value of the total confirmed orders at a point in time for which performance obligations have not yet been satisfied. This metric is useful as it represents the aggregate amount we expect to recognize as revenue in the future.
While the majority of our products have short lead time order cycles, we havehad aggregated approximately $161$297 million of backlog from continuing operations at December 31, 2018.2020 compared to $198 million at December 31, 2019. The backlog primarily relates to certain business units in our Industrial and Infrastructure Products and our Renewable Energy and Conservation and our Infrastructure segments. We believe that the majority of our backlog will be shipped, completed and installed during 2019.2021.
Competition
The Company operates in highly competitive markets. We compete against several competitors in all three of our segments with different competitors in each major product category. We compete with competitors based on the range of products offered, quality, price, and delivery, as well as serving as a full service provider for project management in certain segments. Although some of our competitors are large companies, the majority are small to medium-sized and do not offer the large range of building products that we offer.
We believe our broad range of products, high quality, and sustained ability to meet exacting customer delivery requirements gives us a competitive advantage over many of our competitors. We also believe that execution of our business strategy further differentiates us from many of our competitors and allows us to capitalize on those areas that give us a competitive advantage over many of our competitors.

Seasonality
Seasonality
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The Company’s business has historically been subjected to seasonal influences, with higher sales typically realized in the second and third quarters. General economic forces, such as tax credit expirations and imposed tariffs, along with changes in the Company’s products and customer mix have shifted traditional seasonal fluctuations in revenue over the past few years.
Governmental Regulation
Our production processes involve the use of environmentally regulated materials. We believe that we operate our business in material compliance with all federal, state and local environmental laws and regulations, and do not anticipate any material adverse effect on our financial condition or results of operations to maintain compliance with such laws and regulations. However, we could incur operating costs or capital expenditures in complying with new or more stringent environmental requirements in the future or with current requirements if they are applied to our manufacturing facilities or distribution centers in a way we do not anticipate. In addition, new or more stringent regulation of our energy suppliers could cause them to increase the price of energy.
Our operations are also governed by many other laws and regulations covering our labor relationships, the import and export of goods, the zoning of our facilities, taxes, our general business practices, and other matters. We believe that we are in material compliance with these laws and regulations and do not believe that future compliance with such laws and regulations will have a material adverse effect on our financial condition or results of operations.
Internet InformationHuman Capital - Organization Development
CopiesGibraltar is built on three strategic pillars – a strong business system, the optimization of our portfolio of businesses, and continuous organizational development. Advancing each pillar is critical to ensuring we deliver our commitments to our people, our shareholders, our stakeholders, and our communities. The foundation for organizational development is built on two fundamental beliefs:
1.Our ability to perform and deliver shareholder value is dependent on our people, and
2.We strive to create an environment where our people can have the best chance for success and we refer to this internally as creating the "Best Place to Work."
Our "Best Place to Work" initiative is built on the following six tenets, and involves our entire organization:
1.Health and Safety
2.Education and Development
3.Diversity, Equality and Inclusion
4.Corporate Social Responsibility
5.Compensation and Employee Benefits
6.Communication and Employee Engagement
We employed 2,319 full-time employees and 18 part-time employees as of December 31, 2020. Of our 2,337 total employees, 939 were classified as salary and 1,398 classified as hourly. We also employed approximately 619 full-time equivalent temporary agency employees.
Health and Safety
We expect each member of Gibraltar to follow our safety standards and practices, support our key safety initiatives, be accountable to each other, and always be part of the Company’s Proxy Statementssolution. We believe all accidents and near-misses are preventable. Additionally, we measure and review our safety results continuously in each location.
We have a disciplined safety management and reporting process. Our CEO reviews safety performance, including recordable incidents, near misses, and first aid cases monthly with all business and human resource leaders. In addition, safety performance and best practices are also reviewed quarterly with the entire organization during our organization-wide Town Hall live virtual meetings. Additionally, as part of our annual budget and capital planning process, our businesses identify additional safety investments required for training, education, equipment, and processes.
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Our safety performance improved in 2020, and we remain focused on Schedule 14A filed pursuantcontinuing positive progress in 2021. We measure safety performance on three metrics - Total Recordable Incident Rate (TRIR), Near Misses, and First Aid events.
TRIR is defined as the number of work-related injuries or illness serious enough to Section 14require treatment beyond first aid, per 200,000 hours worked.
Near Misses are defined as an incident in which no personal injury occurred, but personal injury could have occurred but for a slight circumstantial shift.
First Aid events are defined as medical attention that is administered immediately after an injury or sudden illness occurs and at the location where it occurred.
In 2020, we worked 4,874,000 hours, an increase of an 548,000 workforce hours, or 12.7% increase versus 2019. Increase in workforce hour is primarily due to our acquisitions of Thermo, Delta Separation, Architectural Mailboxes and Apeks, as well as an overall increase in our workforce from 2019. Our TRIR rate improved 37% from 3.7 TRIR to 2.3 TRIR, with recordable incidents down 29% and first-aid events up 18%, respectively. In addition, we did not have any work-related fatalities in 2020, nor any in recent years.
Operating during the COVID-19 pandemic required focus, discipline, and diligence from our entire organization to maintain our COVID health and safety protocols—while at work, home, and in the communities where we live and work. Beginning in March 2020 and to date, we implemented:
All Centers for Disease Control and Prevention (CDC), World Health Organization (WHO), and U.S. Department of Health and Human Services (DHS) recommendations and educational initiatives. Additionally, we proactively tracked and implemented all state and local mandates and made modifications in compliance with changes throughout the year.
Travel restrictions and leveraging of digital tools as much as possible.
Operating protocols in our offices and production facilities including mandatory PPE (face masks / shields, and sanitizer stations), social distancing requirements, zone management, shift management, temperature checks, visitor restrictions, and sanitization management with outside contractors.
Business continuity protocols for our remote-working team with focus on reliable, consistent, and continuous connectivity along with additional cyber-security protection and a new centralized Help Desk.
Temporary conversions of two manufacturing facilities to produce face masks and shields for all Gibraltar employees and their family members. We also produced hand sanitizer for all Gibraltar locations and healthcare facilities and first responders in our local communities.
160 hours of additional pay for our production employees to be used at their discretion during the year to support them, and their families, in the event the pandemic caused personal hardship. In December 2020, we paid a cash bonus to each production employee for the unused portion of their remaining 160 hours. For non-production employees, who positions were generally able to be performed remotely, we provided salary continuation for time needed to deal with personal matters arising from the pandemic.
Daily, weekly, and monthly communications to keep our team informed as the pandemic and our business situation evolved throughout the year. In 2020, the CEO hosted 18 live "Town Hall" virtual meetings connecting with as many as 650 people to provide updates and address any concerns from the team. The executive leadership team, business leaders, and human resource leaders met daily and weekly to modify and implement changes to our operating protocols.
Processes to track COVID-19 cases across Gibraltar by location and for our employees working remotely. The leadership team reviewed our status every 24 to 48 hours. We also tracked the recovery process for all employees and our “active” cases throughout the year.
Education and Development
We support our employees in realizing their full potential with meaningful career development opportunities. Our focus is to build the best organization and an environment where our employees learn, are challenged, and have the tools to grow. We are also focused on building the most effective systems, tools and processes to enable the organization to continue to advance. With these initiatives, along with our formal education and development program, we will build competencies, drive more diversity of thought, challenge internal paradigms, and drive improved and consistent performance.
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The development of our organization starts with consistent education and training. At the core of this effort is making sure our people have a foundation based in Ethics and Compliance, which is summarized as follows:
Our commitment to high ethical standards is the best way to serve our people, customers, suppliers, and investors;
We are all responsible to follow and uphold strong ethical principles;
Ethical behavior is more than a policy and compliance with the law is mandatory—it is our responsibility to do business in the right and responsible way.
Our commitment to living our values includes providing education and training for everyone, and as part of our continued commitment, we have updated our Code of Ethics and expanded our ethics training curriculum.
In 2019, we developed a comprehensive education curriculum including Ethics – “Doing the Right Thing,” Compliance – “Doing It the Right and Responsible Way,” and Cyber Security. Our curriculum is administered online and every employee and member of the Securities Exchange ActBoard of 1934Directors is required to complete a minimum of 12.5 hours per year in an assigned timeframe. In 2020, we invested approximately 20,000 hours in education and Annual Reportstraining and our goal on Form 10-K, Quarterly Reportsa full-year basis is to invest at least 25,000 hours. Our education program, completed annually by all employees, is a condition of employment, and our CEO reviews the quarterly progress for all employees. The base curriculum is summarized below.
EthicsComplianceCyber Security
“Do the Right Thing”
Ethics and Ethical Behavior
Harassment and Discrimination
Diversity, Equity and Inclusion
Unconscious and Implicit Bias
Micro-Aggressions
Respect in the Workplace
Cultural Competency
Corporate Social Responsibility
Conflict of Interest
“Do It the Right and Responsible Way”
Insider Trading
Intellectual Property
Anti-Trust and Fair Competition
Government Relations
Improper Payments and Gifts
Data Privacy and Protection
International Business Ethics
U.S. Employment Law for Supervisors

Business Continuity
Security Awareness
Internet Security When Working from Home
Social Engineering, Phishing, and Ransomware
Mobile Security
Stop and Stop the Spread of Disinformation
Identity Theft
We also developed and launched Gibraltar University in 2019, which is designed to develop our leadership across Gibraltar. The program is a two-year initiative utilizing classroom education, ongoing continuous learning, and team project implementation prior to graduation. The curriculum covers Finance, Human Resources, Marketing, Operations, Innovation, Legal, Strategy Development and Deployment, and Mergers & Acquisitions, and is taught by Gibraltar’s leadership team. In January 2020, our first class of 40 participants, nominated by our business leaders, started the program and will graduate in December 2021. Our second class will be selected in June 2021 and will start the program in January 2022.
In 2019, we piloted our Organization Planning and Talent Review process, and subsequently implemented it across Gibraltar in 2020. The annual process integrates discussions and metrics on Form 10-Q, Current Reports on Form 8-K,organization design/structure, career development, diversity, equality and amendmentsinclusion, performance and potential assessment, and succession planning. Each business unit reviews their organizational development plans with our CEO and executive leadership team and follows with monthly reviews to those reports filed or furnished pursuant to Section 13(a) or 15(d)ensure implementation of organization plans. On an annual basis, our CEO reviews the organizational development plan and performance results with the Board of Directors including performance of the Securities Exchange Actexecutive team, succession planning progress, key organizational priorities and results, education and training initiatives, and all key organizational design and structure.
This annual process helps our organization scale and manage the future of 1934the company. The process reinforces the development requirements and opportunities for our people, and ensures we are available freeaddressing organization gaps/opportunities and succession planning in a continuous and timely manner. It also drives our annual hiring, recruiting, and retention initiatives, and in 2020, it was instrumental as we added significant talent across our organization.
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Recruiting is an important aspect of our business strategy and is guided by our desire to find the Company’s website (www.gibraltar1.com)best talent to drive our business and build our “Best Place to Work” vision. It starts with understanding our organizational needs and developing diverse candidate “slates” for the positions we plan to hire. Our search process is based on personal engagement, and utilizes digital tools and channels, intelligent software and analytics, and competency assessment tools.
Recruiting is also about telling our story better – communicating our “Best Place to Work” vision using social media to reach a broader audience, and strengthening our partnerships with selected professional recruiters, labor agencies, universities, and trade schools. Our apprentice, co-op and internship programs continue to grow and this creates an opportunity for potential candidates to assess the fit and opportunity within our organization over time.
Diversity, Equality and Inclusion
We support and encourage a culture where diversity of thought flourishes, and all employees feel appreciated, included, and know they have an equal opportunity to develop, grow, and succeed based on their performance. We believe demonstrating respect for our people and valuing them for who they are, their perspectives, and their contributions is critical to creating the best environment for our team to have success. This is foundational for our “Best Place to Work.”
Below are key demographics of our workforce.
2020 Workforce Composition (Gender and Age)
Employee Age GroupsFemaleMaleTotal by Age Group% by Age Group
< 30 years of age6528635115.0%
30 - 49 years of age2517751,02643.9%
50+ years of age25870296041.1%
Total5741,7632,337
As a percentage24.6%75.4%
Number of 2020 Employees by Employment Type (by Gender)
Employee TypeFemaleMaleTotal by Type% by Type
Salary28965093940.2%
Hourly2851,1131,39859.8%
Total5741,7632,337
2020 Ethnic Background of Employees
Ethnic Background% of Employees
White60.2%
Black or African American15.7%
Hispanic or Latino13.1%
Not Specified5.3%
Asian4.8%
American Indian/Alaska Native0.6%
Two or More Races0.3%
In 2020, over 50% of our employees hired were classified as soondiverse. We are building a team with people who bring diversity of thought, experience, and perspective to our organization. We recognize our organization and the communities we operate in will continue to evolve and grow, which will require we remain focused on the following initiatives:
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Continue our mandatory and annual education and development program for the entire Company, including the Board of Directors, and evolve the curriculum as needed;
Continue to “map” our organization with the communities we operate in to ensure the make-up of our team is reasonably practicable afterrepresentative of the community itself;
Implement and upgrade business systems across the Company electronically filesto give us the materialcapability to gather and analyze data, derive conclusions, and develop action plans for implementation;
Communicate our progress utilizing monthly business reviews with or furnishes itthe leadership teams, and through quarterly communications with our teams, and quarterly reviews with the Board of Directors;
Build the most effective recruitment framework to attract the best talent with the following objectives:
1.Build diversity of thought requirements into our recruiting process with our partner recruitment firms and labor agencies, universities and trade schools, and ensure they deliver diverse slates of candidates for our hiring needs; and
2.Strengthen our outreach effort to build and broaden our opportunity for diverse talent--to include academic institutions, industry associations, local businesses, and affinity groups
Be proactive with our customers and supply chain partners to find ways to work together in promoting positive social development.
Corporate Social Responsibility
The Board of Directors and the entire Gibraltar team are committed to improving and positively impacting the global environment, social development, and business governance. We believe in doing business the right and most responsible way is foundational in executing and accelerating our vision and strategy. Our efforts continue to focus on our People, our Communities, and the World.
Our PeopleOur CommunitiesThe World
To be sustainable and
responsible through the
advancement of our health and
welfare programs; putting the
safety and well-being of our
people before anything else;
supporting professional growth
and developing our future
leaders; and supporting diversity
and inclusion.
By contributing to communities
where we do business and where
our people live and work;
supporting these communities
through charitable donations; and
sponsoring volunteerism.
Operating responsibly in the
world by focusing on measuring,
managing and reducing our
environmental footprint, and
promoting responsibility across
our value chain.
There are three strategic tenets that drive our focus on corporate social responsibility:
1.Center our business portfolio on industries that are solving some of the world’s most important challenges – energy production, growing food, and home efficiency;
2.Invest and commit to improving our own operations – reducing greenhouse emissions through effective and efficient energy technologies, improving our energy efficiency, and sourcing more renewable energy for our power requirements; and
3.Invest in the communities where our people live and work.
Gibraltar continues to transition its portfolio to focus on markets and businesses that are positioned to solve some of our world’s most critical challenges. As of December 31, 2020, over 50% of our businesses were focused on driving environmentally-sound solutions in energy production, growing food, and home efficiency. A representative example of this day-to-day effort is reflected in the Renewables and Conservation business.
Since 2015, our Renewables business has installed over 2,500 solar energy fields across the U.S., offsetting more than 4 million metric tons of CO² equivalent. We acquired TerraSmart on December 31, 2020, a leading solar technology business, to help us accelerate our vision to make solar energy the best overall energy solution to power the future. In 2021, we plan to install Gibraltar’s first solar field to provide 100% of the electricity requirements of a key manufacturing facility.
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Our Conservation business is the largest North American based commercial greenhouse solutions provider, with over 3,000 acres of controlled-environment commercial growing installed in North America. The business is focused on localizing the growing of fruits and vegetables, cannabis, flowers, and plants in a controlled environment utilizing natural sunlight, optimal water supply, and without pesticides. We enable improved crop yield, food quality, and the overall health of consumers.
Across Gibraltar, we remain focused on contributing to the Securitiesreduction of greenhouse emissions by deploying more effective and Exchange Commission.

Employeesefficient ways in managing our operations, reducing the amount of power we consume, and identifying opportunities to source renewable energy for our power requirements. We have partnered with the U.S. Department of Energy’s Better Plants Program to improve energy efficiency and competitiveness at our operations and have also partnered with a global energy company to help us automate the identification and collection our emissions data. These efforts will help us develop first company-wide sustainability report and establish a scientific-based carbon reduction plan and commitment for the future.
The Company employed 1,939health and 2,022well-being of the communities we operate in is important to everyone across our organization. We continue to support many local charities with funding, time and talent, with a focus on improving the health and education of children. In 2019, we launched our first employee giving program and employee donations made to St. Jude’s Children’s Hospital, the Ronald MacDonald House, or Habitat for Humanity were supported with a 100% match from the company. In 2020, we expanded our giving program to include food banks located in our communities. Our employees donated over 3.3 million meals, approximately 85,000 meals for each food bank. Gibraltar continues to be an advocate and supporter of our Veterans, the Make-A-Wish Foundation, and the United Way.
Compensation and Employee Benefits
Our compensation and benefits package is a key factor in recruiting and retaining the best talent in our industry. Our employee health and welfare benefits program is designed to promote the overall health of our workforce. While specific benefits vary worldwide and are based on regional practices, listed below are some common features offered to our United States based employees, which at December 31, 20182020 comprised approximately 91% of our employees:
• Medical, dental and vision benefits for employee, spouse and dependents• Wellness incentives for employees
• Flexible spending accounts for both healthcare and dependent care• Life insurance benefits
• 401(k) retirement savings program with company matching contributions• Employee assistance program
• Paid vacation and holidays• Parental leave
• Short-term and long-term disability benefits
In addition, all salaried employees receive a written performance appraisal on an annual basis. We review compensation at least annually for all employees and 2017, respectively.adjust it to ensure we reward exceptional performance and remain competitive in the market. We also offer a target-based incentive plan that provides for annual bonus opportunity when certain company financial metrics are met.

Communication and Employee Engagement
Senior Management TeamGibraltar recognizes the importance of engaging employees through consistent and continuous communication such that the team clearly understands the Company's vision, strategy, and key priorities. Every quarter, our CEO conducts a live "Town Hall" meeting for the entire organization with a standard agenda reviewing ethics and compliance, safety performance, business performance, community service initiatives, employee recognition, and concludes with a live Questions & Answers session. After each Town Hall meeting, our team is surveyed for feedback on ways to improve the meeting. As well, each Gibraltar business leader is required to develop and execute a similar communication plan for their business. In 2020, we also conducted an employee engagement survey to solicit input about our brand, company reputation, and culture. The results of the survey will contribute to Gibraltar's brand assessment initiative as well as further strengthen our internal communication process. Ultimately,
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creating a "Best Place to Work" environment requires continuous and effective engagement and communication with our employees, and it also creates a strong foundation for attracting and retaining our team.
Information About Executive Officers
Our senior management team is composed of talented and experienced managers possessing broad experience in operational excellence, new product development, and driving profitable growth gained over multiple business cycles:
William Bosway - President, Chief Executive Officer (CEO) and a member of the Board of Directors. Mr. Bosway was appointed President, Chief Executive Office (CEO) and a member of the Board of Directors effective January 2, 2019. Mr. Bosway joined our Company with extensive experience in global manufacturing industries, driving organic growth, acquisitions, lean manufacturing and continuous improvement techniques.
Patrick Burns - Chief Operating Officer (COO). Mr. BoswayBurns was appointed as successor to the former CEO and President, Frank Heard, who announced that he would retire in March 2020.
Frank Heard - Vice Chair of the Board of Directors. Mr. Heard was appointed Vice Chair effective January 2, 2019 after announcement of his intentions to retire from the Company in March 2020. As the former CEO and PresidentCOO of the Company since January 2015,on March 18, 2019. Mr. Heard will assistBurns joined with Company with significant experience in transitioning Mr. Bosway in the role of CEO. Mr. Heard was hired in May 2014 to serve as the Company's as Presidentkey leadership and Chief Operating Officer.operational strategy roles at various multi-industrial companies over his career.
Timothy Murphy - Chief Financial Officer (CFO) and Senior Vice President (SVP). Mr. Murphy was appointed CFO and SVP of the Company on April 1, 2017. Mr. Murphy joined the Company in 2004 as Director of Financial Reporting, and subsequently served as the Company's Vice President, Treasurer and Secretary.
Cherri Syvrud - SVP of Human Resources and Organizational Development. Ms. Syvrud was appointed SVP of Human Resources and Organizational Development on April 1, 2016. Ms. Syvrud joined the Company with significant experience in human resources and organization development, including 25 years of employment at Illinois Tool Works, Inc.

Jeffrey Watorek - Vice President, Treasurer and Secretary. Mr. Watorek was appointed as Vice President, Treasurer and Secretary on April 1, 2017. Mr. Watorek joined the Company in 2008 as Manager of Financial Reporting, and subsequently served as the Company's Director of Financial Planning and Analysis.

Internet Information
Copies of the Company’s Proxy Statements on Schedule 14A filed pursuant to Section 14 of the Securities Exchange Act of 1934 and Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K, and amendments to those reports filed or furnished pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934 are available free of charge through the Company’s website (www.gibraltar1.com) as soon as reasonably practicable after the Company electronically files the material with, or furnishes it to, the Securities and Exchange Commission.

Item 1A.Risk Factors

Our business, financial condition and results of operations, and the market price for the Company's common shares are subject to numerous risks, many of which are driven by factors that cannot be controlled or predicted. The following discussion, as well as other sections of this Annual Report on Form 10-K, including “Part II, Item 7, Management’s Discussion and Analysis of Financial Condition and Results of Operations,” describe certain business and other risks affecting the Company. ConsiderationIn conjunction with reviewing the forward-looking statements and other information contained in this Annual Report on Form 10-K, consideration should be given to the risk factors described below as well as those in the Safe Harbor Statement at the beginning of this Annual Report on Form 10-K, in conjunction with reviewing the forward-looking statements and other information contained in this Annual Report on Form 10-K. These10-K.These risks are not the only risks we face. Our business operations and the market for our securities could also be adversely affected by additional factors that are not presently known to us, or that we currently consider to be immaterial in our operations.
Macroeconomic factors outside of our control may adversely affect our business, our industry, and the businesses and industries of many of our customer and suppliers.
Macroeconomic factors have a significant impact on our business, customer demand and the availability of credit and other capital, affecting our abilityRisks Related to generate profitable margins. Our operations are subject to the effects of domestic and international economic conditions including government monetary and trade policies, tax laws and regulations, as well as, the relative debt levels of the U.S. and the other countries in which we sell our products. Tariffs placed on imported products used by our customers, such as solar panels, may negatively impact demand for our solar racking systems. In addition, fluctuations in the U.S. dollar impacts the prices we charge and costs we incur to export and import products.Business Operations
We are unable to predict the impact on our business of changes in domestic and international economic conditions. The markets in which we operate have been challenging in the past, and the possibility remains that the domestic or global economies, or certain industry sectors of those economies that are key to our sales, may deteriorate, which could result in a corresponding decrease in demand for our products and negatively impact our results of operations and financial condition.

Increases in future levels of leverage and size of debt service obligations could adversely affect our ability to raise additional capital to fund our operations, limit our ability to react to changes in the economy or our industry and prevent us from meeting our obligations.

As of December 31, 2018, we had total indebtedness of $212 million, before unamortized debt issuance costs, of which, $1.6 million was long term debt. Subsequent to the year end, on February 1, 2019, the Company redeemed the $210 million of indebtedness outstanding under its 6.25% Senior Subordinated Notes using available cash on hand and leaving only $1.6 million of long term debt outstanding. Nonetheless, we may need to incur debt in the future to fund strategic acquisitions, investments or for other purposes, which debt could have significant adverse consequences to our business. Our Senior Credit Agreement entered into on January 24, 2019 contains several financial and other restrictive covenants. A significant decline in our operating income along with increased levels of debt could cause us to violate these covenants which could result in our incurring of additional financing fees that would be costly and adversely affect our profitability and cash flows. We may also use our Senior Credit Agreement or otherwise incur additional debt for acquisitions, operations and capital expenditures that could adversely impact our ability to meet these covenants.


We apply judgments and make estimates in accounting for certain customer contracts, and changes in these judgments or estimates may have significant impacts on our earnings.

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Changes in judgments or required estimates and any subsequent adjustments to those judgments or estimates (such as performance incentives, penalties, contract claims and contract modifications) could have a material adverse effect on sales and profits. Due to the substantial judgments applied and estimations involved with this process,our accounting for customer contracts, our actual results could differ materially or could be settled unfavorably from our estimates. Revenue representing 32%40%, 41% and 28%38% of 20182020, 2019 and 20172018 consolidated net sales, respectively, were recognized over time under the cost-to-cost method. Refer to “Critical Accounting Estimates” within Item 7 of this Form 10-K for more detail of how our financial statements can be affected by accounting for revenue from contracts with customers.


A significant portion of our net sales are concentrated with a few customers. The loss of any of those customers would adversely affect our business, results of operations, and cash flows.


A loss of sales, whether due to decreased demand from the end markets we serve or from the loss of any significant customer in these markets, a decrease in the prices that we can realize from sales of our products to customers in these markets, or a loss, bankruptcy, or significant decrease in business from any of our major customers, could have a significant adverse effect on our profitability and cash flows. Our ten largest customers accounted for approximately 38%35%, 36%34%, and 30%,46% of our net sales during 2018, 2017,2020, 2019, and 2016,2018, respectively, with our largest customer, a retail home improvement center, accounting for approximately 12%, 12%, and 11%14% of our consolidated net sales during 2018, 2017 and 2016, respectively.

The volatilityeach of the commodity marketyears 2020, 2019 and 2018.

A portion of our business is dependent on laws and regulations pertaining to the cannabis industry, and this industry faces significant opposition that could adversely affect this portion of our business.

One of our businesses makes and sells greenhouses and botanical extraction and processing equipment which may be sold to companies that cultivate, process and sell cannabis products for recreational and medicinal use. This business is dependent on state laws and regulations pertaining to the cannabis industry that legalize and regulate cannabis use. While several states have legalized cannabis for medical or recreational purposes, it remains illegal under federal law. Even in those states in which cannabis use has been legalized, its use remains a violation of federal criminal law, which preempts state laws that legalize its use. Strict enforcement of federal law regarding cannabis would likely have an adverse impact on our pricing of our principal raw materials,customers, and the highly competitive market environment in which we do business could significantlycorrespondingly, may adversely impact our gross profit, net income and cash flow.flows.

The cultivation, processing and distribution of cannabis in states where it has been legalized is subject to significant regulatory requirements. If our customers who purchase greenhouses and extraction and processing equipment are unable to obtain and maintain the licenses, permits, authorizations or accreditations required to comply with state and local regulations, we may experience the aforementioned adverse effects on our business and results of operations.

Our principal raw materials are commoditybusiness that engages in the sale of greenhouses and botanical extraction equipment is dependent, in part, on increasing legalization and market acceptance of medical and recreational cannabis use. We cannot predict the future increase in state legalization or the future market potential of legalized cannabis use. Other well-established business sectors with powerful economic influence may take action that could adversely impact the cannabis market. The failure of further legalization or market acceptance, or the adverse action by competing well-established business sectors, may suppress our customers’ demand for our products consisting of steel, aluminum, and resins, for which, at times, availability and pricing can be volatile due to a number of factors beyond our control, including general economic conditions, domestic and worldwide demand, labor costs, competition, import duties, tariffs, and currency exchange rates. Commodity price fluctuations and increased competition could force us to lower our prices or to offer additional services or enhanced products at a higher cost to us, which couldthereby reduce our gross profit and net income, and cash flow and cause us to lose market share.income.

Our business is highly competitive and increased competition could reduce our gross profit, net income, and cash flow.

The principal markets that we serve are highly competitive. Competition is based primarily on product functionality, quality, price, raw material and inventory availability, and the ability to meet delivery schedules dictated by customers. We compete in our principal markets with companies of various sizes, some of which have greater financial and other resources than we do, and some of which have better established brand names in the markets we serve. Increased competition could force us to lower our prices or to offer additional services or enhanced products at a higher cost to us, which could reduce our gross profit, net income, and cash flow and cause us to lose market share.

Our business and financial performance may be adversely affected by information systems interruptions, cybersecurity attacks, equipment failures, and technology integration.

Our business may be impacted by disruptions to our own or third-party information technology (“IT”) infrastructure, which could result from (among other causes) cyber-attacks on, or failures of, such infrastructure or compromises to its physical security, as well as from damaging weather or other acts of nature. Cyber-based risks, in particular, are evolving and include, but are not limited to, both attacks on our IT infrastructure and attacks on the IT infrastructure of third parties (both on premises and in the cloud) attempting to gain unauthorized access to our confidential or other proprietary information, classified information, or information relating to our employees, customers and other third parties.

Due to the evolving threat landscape, cyber-based attacks will continue and we may experience them going forward, potentially with more frequency. We continue to make investments and adopt measures designed to enhance our protection, detection, response, and recovery capabilities, and to mitigate potential risks to our technology, products, services and operations from potential cyber-attacks. However, given the unpredictability, nature and scope of cyber-attacks, it is possible that potential vulnerabilities could go undetected for an extended period. We could potentially be subject to production downtimes, operational delays, other detrimental impacts on our operations or ability to provide products and services to our customers, the compromise of confidential or otherwise protected information, misappropriation, destruction or corruption of data, security breaches, other manipulation or improper use of our or third-party systems, networks or products, financial losses from remedial actions, loss of business or potential liability, and/or damage to our reputation, any of which could have a material adverse effect on our competitive position, results of operations, cash flows or financial condition. Due to the evolving nature of such risks, the impact of any potential incident cannot be predicted.


If the subcontractors and suppliers we rely upon do not perform to their contractual obligations, our revenues and cash flows would be adversely affected.

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Some of our construction contracts with customers involve subcontracts with other companies that perform a portion of the services or provide systems that are integral to the end product that we provide to our customers. There is a risk that our subcontractors may not perform to their contractual obligations, and therefore may cause disputes regarding the quality and timeliness of work performed by our subcontractors or other customer concerns with the subcontractor. Any such disputes or concerns could materially and adversely impact our ability to perform our obligations as the prime contractor. Similarly, the failure by our suppliers to deliver raw materials, components or equipment parts according to schedule, or at all, may affect our ability to meet our customers' needs and may have an adverse effect upon our profitability. Failure of our raw materials or components to conform to our specification could also result in delays in our ability to timely deliver, and may have an adverse impact on our relationships with our customers, and our ability to fully realize the revenue expected from sales to those customers.


Our strategy depends on identification, managementoperations are subject to seasonal fluctuations that may impact our cash flow.

Our net sales are generally lower in the first and successful integrationfourth quarters primarily as a result of future acquisitions.reduced activity in the building industry due to inclement weather. Therefore, our cash flow from operations may vary from quarter to quarter. If, as a result of any such fluctuation, our quarterly cash flows were significantly reduced, we may not be able to service our indebtedness or maintain covenant compliance.
Historically,
The expiration, elimination or reduction of solar rebates, credits and incentives may adversely impact our business.

A variety of federal, state and local government agencies provide incentives to promote electricity generation from renewable sources such as solar power. These incentives are in the form of rebates, tax credits and other financial incentives which help to motivate end users, distributors, system integrators and others to install solar powered generating systems. Any changes to reduce, shorten or eliminate the scope and availability of these incentive programs could materially and adversely impact the demand for our related products, our financial condition and results of operations.

The nature of our business exposes us to product liability, product warranty and other claims, and other legal proceedings.

We are involved in product liability, product warranty and other claims relating to the products we have grown through a combination of internal growth plus external expansion through acquisitions.manufacture and distribute. Although we intendcurrently maintain what we believe to continue to seek additional acquisition opportunitiesbe suitable and adequate insurance in accordance withexcess of our business strategy, we cannot provide anyself-insured amounts for product liability and other claims, there can be no assurance that we will be able to identify appropriate acquisition candidates,maintain such insurance on acceptable terms or if we do, that wesuch insurance will provide adequate protection against potential liabilities. Product liability claims can be ableexpensive to negotiate successfullydefend and can divert the termsattention of an acquisition, financemanagement and other personnel for significant periods, regardless of the acquisitionultimate outcome. Claims of this nature could also have a negative impact on customer confidence in our products and our Company. We cannot assure you that any current or integrate the acquisition into our existing operations. Failure to integrate any acquisition successfully may cause significant operating inefficiencies, result in the incurring of unforeseen obligations or loss of customers and couldfuture claims will not adversely affect our profitability. Consummating a large acquisition could require us to raise additional funds through additional equity or debt financing, which could increase our interest expensereputation, financial condition, operating results, and reduce our cash flows and available funds.flows.

Systems integration and implementation issues could disrupt our internal operations.
In connection with the acquisitions we make, we customarily must integrate legacy information technology systems of the acquired business with our information technology infrastructure, and in some cases, implement new information technology systems for the business. In addition, as the functionality of available information systems increases, we may need to implement significant upgrades or even replace some of our primary information technology systems across significant parts of our businesses and operations. The implementation of new information technology solutions could lead to interruptions of information flow internally and to our customers and suppliers while the implementation project is being completed. Any failure to integrate legacy systems of acquisitions or to implement new systems properly could negatively impact our operations and financial results.
We depend on our senior management team and other key employees, and the unexpected loss of any member could adversely affect our operations.

Our success is dependent on the management and leadership skills of our senior executive and divisional management teams. The unexpected loss of any of these individuals or our inability to attract and retain additional personnel could prevent us from successfully executing our business strategy. We cannot assure you that we will be able to retain our existing senior management personnel or to attract additional qualified personnel when needed. We have not entered into employment agreements with any of our senior management personnelpersonnel.

Risks Related to Information Technology

Our business and financial performance may be adversely affected by cybersecurity attacks, information systems interruptions, equipment failures, and technology integration.

Our business may be impacted by disruptions to our own or third-party information technology (“IT”) infrastructure, which could result from (among other than Frank G. Heard,causes) cyber-attacks on, or failures of, such infrastructure or compromises to its physical security, as well as from damaging weather or other acts of nature. Cyber-based risks, in particular, are evolving and include, but are not limited to, both attacks on our Vice ChairmanIT infrastructure and attacks on the IT infrastructure
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of third parties (both on premises and in the cloud) attempting to gain unauthorized access to our confidential or other proprietary information, classified information, or information relating to our employees, customers and other third parties.

Due to the increasing number and sophistication of attempted intrusions and attacks on Company networks, cyber-based attacks will continue and we will likely experience increasing numbers of them going forward. We continue to make investments and adopt measures designed to enhance our protection, detection, response, and recovery capabilities, and to mitigate potential risks to our technology, products, services and operations from potential cyber-attacks. However, given the unpredictability, sophistication and scope of cyber-attacks, it is possible that potential vulnerabilities could go undetected for an extended period. We could potentially be subject to production downtimes, operational delays, other detrimental impacts on our operations or ability to provide products and services to our customers, the theft of confidential or otherwise protected information, misappropriation of assets, destruction or corruption of data, security breaches, other manipulation or improper use of our or third-party systems, networks or products, financial losses from remedial actions, loss of business or potential liability, and/or damage to our reputation. Due to the evolving nature of such risks, the impact of any potential incident cannot be predicted, but under certain circumstances could materially and adversely affect our competitive position, results of operations and cash flows.

Risks Related to Acquisitions

Our strategy depends, in part, on identification, management and successful business and system integration of future acquisitions.

Historically, we have grown through a combination of internal growth plus external expansion through acquisitions. We intend to continue to seek additional acquisition opportunities in accordance with our business strategy. However, we cannot provide any assurance that the following risks involved in completing acquisitions will not occur nor adversely impact our operations and financial results:
Failure to identify appropriate acquisition candidates, or, if we do, failure to successfully negotiate the terms of an acquisition;
Diversion of senior management’s attention from existing business activities;
Failure to integrate any acquisition into our operations successfully that may result in incurring unforeseen obligations, loss of key customers, suppliers, and employees of the Board.acquired businesses, or loss of existing customers and suppliers;

Difficulties or delays in integrating and assimilating information and systems that may require significant unforeseen upgrades or replacement of our primary information technology systems across significant parts of our businesses and operations to successfully integrate acquisitions. The implementation of new information technology solutions could lead to interruptions of information flow internally and to our customers and suppliers while the implementation project is being completed. Any failure to integrate legacy systems of acquisitions or to implement new systems properly could negatively impact our operations and financial results.

Consummating a large acquisition could require us to raise additional funds through additional equity or debt financing, which could be dilutive to shareholder value, increase our interest expense and reduce our cash flows and available funds.
Adverse impact on overall profitability if the acquired business does not achieve the return on investment projected at the time of acquisition.

We have not completed an assessment of the internal controls over financial reporting for our 2020 acquisitions, and therefore, significant deficiencies or material weaknesses may exist.

Under current SEC guidelines, the period in which management may omit an assessment of an acquired business's internal control over financial reporting from its assessment of the registrant's internal control may not extend beyond one year from the date of acquisition, nor may such assessment be omitted from more than one annual management report on internal control over financial reporting.

Pursuant to this guidance, we have excluded our 2020 acquisitions from the scope of management’s assessment of the effectiveness of the Company’s internal control over financial reporting as of December 31, 2020. However, we will be required to include these acquisitions in the scope of our assessment beginning in 2021. In connection with our 2021 assessment, “significant deficiencies” or “material weaknesses” in internal control over financial reporting may be detected in 2020 acquired companies. To the extent that such deficiencies are identified, we may incur
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costs associated with our efforts to address these deficiencies that could negatively affect our financial condition and operating results. Furthermore, if we are unable to correct such deficiencies in a timely manner, our ability to record, process, summarize and report financial data may be adversely affected, which may result in a material misstatement in our financial statements. Such failure could materially and adversely impact our business and subject us to potential investigations, liability and penalties.

General Risks Related to Investment in Our Securities

The COVID-19 pandemic has significantly impacted worldwide economic conditions and could have a material adverse effect on our business, results of operations, financial condition, and cash flows.

The COVID-19 pandemic began to impact our operations late in the first quarter of 2020 as government authorities imposed mandatory closures, work from home orders and social distancing protocols. While vaccinations against COVID-19 have been developed, they are not yet widely available. In addition new strains of the COVID-19 virus have been identified which may be resistant to vaccines or have higher morbidity rates than the initially identified strain of the virus. As a result, we cannot predict when the impact of COVID-19 on our business will end. We have adjusted our work environments to improve airflow and implement required social distancing protocols. COVID-19 may further impact our operations by causing delays in our receipt of raw materials and other product components due to disruptions in our supply chain, limiting access to our distribution channels, reducing the availability of our workforce and subcontractors through government mandated closures or work from home orders and increasing the frequency of cyber attacks on our information technology infrastructure. The unpredictable changes in our supply chain or our production capacity and customer demand resulting from the COVID-19 pandemic may pose material risk to our results of operations, financial condition, and cash flows. We are continuously monitoring the impact of COVID-19 on our business and operations and taking action to mitigate the risks involved. However, prolonged disruption to the economy and the end markets we serve may have a material adverse impact our business, results of operations, financial condition, and cash flows.

Macroeconomic factors outside of our control may adversely affect our business, our industry, and the businesses and industries of many of our customer and suppliers.

Macroeconomic factors have a significant impact on our business, customer demand and the availability of credit and other capital, affecting our ability to generate profitable margins. Our operations are subject to the effects of domestic and international economic conditions including government monetary and trade policies, tax laws and regulations, as well as, the relative debt levels of the U.S. and the other countries in which we sell our products. Tariffs placed on imported products used by our customers could impact cost and availability of these products to our customers which could impact the demand for our products or services. In addition, fluctuations in the U.S. dollar impact the prices we charge and costs we incur to export and import products.

We are unable to predict the impact on our business of changes in domestic and international economic conditions. The markets in which we operate have been challenging in the past, and the possibility remains that the domestic or global economies, or certain industry sectors of those economies that are key to our sales, may deteriorate, which could result in a corresponding decrease in demand for our products and negatively impact our results of operations and financial condition.

If events occur or indicators of impairment are present that may cause the carrying value of long-lived and indefinite-lived assets to no longer be recoverable or to exceed the fair value of the asset, or that may lead to a reduction in the fair value of the asset, significant non-cash impairment charges to earnings may be taken that may have a material adverse impact on our results of operations.

In prior years, we have recorded significant non-cash impairment charges for goodwill and other intangible assets as a result of reductions in the estimated fair values of certain businesses. It is possible that we will be required to record additional non-cash impairment charges to our earnings in the future, which could be significant and have a material adverse impact on our results of operations. Refer to “Critical Accounting Estimates” within Item 7 of this Form 10-K for more detail of how our financial statements can be affected by asset impairment.

Increases in future levels of leverage and size of debt service obligations could adversely affect our ability to raise additional capital to fund our operations, limit our ability to react to changes in the economy or our industry and prevent us from meeting our obligations.
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As of December 31, 2020, we had $85.0 million outstanding indebtedness. We may need to incur additional debt in the future to fund strategic acquisitions, investments or for other purposes, which debt could have significant adverse consequences to our business. Our Senior Credit Agreement entered into on January 24, 2019 contains several financial and other restrictive covenants. A significant decline in our operating income along with increased levels of debt could cause us to violate these covenants which could result in our incurring of additional financing fees that would be costly and adversely affect our profitability and cash flows. We may also use our Senior Credit Agreement or otherwise incur additional debt for acquisitions, operations and capital expenditures that could adversely impact our ability to meet these covenants.

We could incur substantial costs in order to comply with, or to address any changes in or violations of, environmental, health and safety laws.

Our operations and facilities are subject to a variety of stringent federal, state, local, and foreign laws and regulations relating to the protection of the environment and human health and safety. Compliance with these laws and regulations sometimes involves substantial operating costs and capital expenditures, and failure to maintain or achieve compliance with these laws and regulations or with the permits required for our operations could result in substantial costs and liabilities, such as fines and civil or criminal sanctions, third-party claims for property damage or personal injury, cleanup costs or temporary or permanent discontinuance of operations, including claims arising from the businesses and facilities that we have sold. For certain businesses we have divested, we have provided limited indemnifications for environmental contamination to the successor owners. We have also acquired and continue to acquire businesses and facilities to add to our operations. While we sometimes receive indemnification for pre-existing environmental contamination, the party providing the indemnification may not have sufficient resources to cover the cost of any required measures. Certain facilities of ours have been in operation for many years and we may be liable for remediation of any contamination at our current or former facilities; or at off-site locations where wastes have been sent for disposal, regardless of fault or whether we, our predecessors or others are responsible for such contamination. We have been responsible for remediation of contamination at some of our locations, and while such costs have not been material to date, the cost of remediation of any of these and any newly-discovered contamination cannot be quantified, and we cannot assure you that it will not materially affect our profits or cash flows. Changes in environmental laws, regulations or enforcement policies, including without limitation new or additional regulations affecting disposal of hazardous substances and waste, greenhouse gas emissions or use of fossil fuels, could have a material adverse effect on our business, financial condition, or results of operations.
Our operations are subject to seasonal fluctuations that may
The volatility of the commodity market on the cost of our principal raw materials, and the highly competitive market environment in which we do business could significantly impact our gross profit, net income, and cash flow.

Our principal raw materials are commodity products consisting of steel, aluminum, and resins, for which, at times, availability and pricing can be volatile due to a number of factors beyond our control, including general economic conditions, domestic and worldwide demand, labor costs, competition, import duties, tariffs, and currency exchange rates. Commodity price fluctuations and increased competition could force us to lower our prices or to offer additional services or enhanced products at a higher cost to us, which could reduce our gross profit, net sales are generally lowerincome, and cash flow and cause us to lose market share.

Climate change and climate change legislation or regulations may adversely affect our business.

Legislative and regulatory changes in response to the potential effects of climate change may require additional costs and investment for compliance, including but not limited to, an increase in the firstcost of purchased energy and fourth quarters primarilyelectricity. Physical effects of climate change, such as disruption in production and product distribution as a result of reduced activitymajor storm events and shifts in the building industry due to inclement weather. In addition, quarterly resultsregional weather patterns and intensities, may be affected by the timing of shipments of large customer orders. Therefore,also significantly affect our cash flow from operations may vary from quarter to quarter. If, as a result of any such fluctuation, our quarterly cash flows were significantly reduced, we may not be able to service our indebtedness or maintain covenant compliance.and financial results.

Economic, political, and other risks associated with foreign operations could adversely affect our financial results and cash flows.

Although the largesignificant majority of our business activity takes place in the United States, we derive a portion of our revenues and earnings from operations in Canada, China and Japan, and are subject to risks associated with doing business internationally. Our sales originating outside the United States represented approximately 5%7% of our
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consolidated net sales during the year ended December 31, 2018.2020. We believe that our business activities outside of the United States involve a higher degree of risk than our domestic activities, such as the possibility of unfavorable circumstances arising from host country laws or regulations, changes in tariff and trade barriers and import or export licensing requirements. In addition, any local or global health issue or uncertain political climates, international hostilities, natural disasters, or any terrorist activities could adversely affect customer demand, our operations and our ability to source and deliver products and services to our customers.


Future terror attacks, war, natural disasters or other catastrophic events beyond our control could negatively impact our operations and financial results.

Terror attacks, war, or other civil disturbances, natural disasters, and other catastrophic events or public health crises, such as the coronavirus, could lead to economic instability, decreased capacity to produce our products and decreased demand for our products. From time to time, terrorist attacks worldwide have caused instability in global financial markets. Concerns over global climate changes and environmental sustainability over time or a pandemic disease outbreak may influence the Company's strategic direction, supply chain, or delivery channels. Also, our facilities could be subject to damage from fires, floods, earthquakes or other natural or man-made disasters.  Such interruptions could have an adverse effect on our operations, cash flows and financial results.


The nature of our business exposes us to product liability, product warranty and other claims, and other legal proceedings.
We are involved in product liability, product warranty and other claims relating to the products we manufacture and distribute. Although we currently maintain what we believe to be suitable and adequate insurance in excess of our self-insured amounts for product liability and other claims, there can be no assurance that we will be able to maintain such insurance on acceptable terms or that such insurance will provide adequate protection against potential liabilities. Product liability claims can be expensive to defend and can divert the attention of management and other personnel for significant periods, regardless of the ultimate outcome. Claims of this nature could also have a negative impact on customer confidence in our products and our Company. We cannot assure you that any current or future claims will not adversely affect our reputation, financial condition, operating results, and cash flows.

If events occur or indicators of impairment are present that may cause the carrying value of long-lived and indefinite-lived assets to no longer be recoverable or to exceed the fair value of the asset, or that may lead to a reduction in the fair value of the asset, significant non-cash impairment charges to earnings may be taken that may have a material adverse impact on our results of operations.
In prior years, we have recorded significant non-cash impairment charges for goodwill and other intangible assets as a result of reductions in the estimated fair values of certain businesses. It is possible that we will be required to record additional non-cash impairment charges to our earnings in the future, which could be significant and have a material adverse impact on our results of operations. Refer to “Critical Accounting Estimates” within Item 7 of this Form 10-K for more detail of how our financial statements can be affected by asset impairment.

The expiration, elimination or reduction of solar rebates, credits and incentives may adversely impact our business.
A variety of federal, state and local government agencies provide incentives to promote electricity generation from renewable sources such as solar power. These incentives are in the form of rebates, tax credits and other financial incentives which help to motivate end users, distributors, system integrators and others to install solar powered generating systems. Any changes to reduce, shorten or eliminate the scope and availability of these incentive programs could materially and adversely impact the demand for our related products, our financial condition and results of operations.

Recently imposedImposed tariffs and potential future tariffs may result in increased costs and could adversely affect our results of operations.
 
In 2018, the United States imposed Section 232 tariffs on certain steel (25%) and aluminum (10%) products imported into the U.S. These tariffs have created volatility in the market and have increased the costs of these inputs. Increased costs for imported steel and aluminum products have leadled domestic sellers to respond with market-based increases to prices for such inputs as well. The new tariffs, along with any additional tariffs or trade restrictions that may be implemented by the U.S. or other countries, could result in further increased costs, shifting in competitive positions and a decreased available supply of steel, resins and aluminum as well as additional imported components and inputs. We may not be able to pass price increases on to our customers and may not be able to secure adequate alternative sources of steel, resins and aluminum on a timely basis. While retaliatory tariffs imposed by other countries on U.S. goods have not yet had a significant impact, we cannot predict further developments. The tariffs could adversely affect the income from operations for certainsome of our businesses and customer demand for certainsome of our products which could have a material adverse effect on our consolidated results of operations, financial position and cash flows.


Item 1B.Unresolved Staff Comments
None.

Item 2.Properties
OurWe lease our principal executive office and corporate headquarters is located in Buffalo, New York, in a leased facility. AsYork. The number, type, location and classification of the properties used by our continuing operations by segment and corporate as of December 31, 2018, we operated 34 domestic facilities and 6 foreign facilities,2020, are as follows:
Number and type of properties
PlantDistribution
Center
OfficeTotal
Renewable Energy and Conservation13 20 
Residential Products12 — 14 
Infrastructure Products— — 
Corporate— — 
Total27 38 
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Location of propertiesClassification of properties
DomesticForeignOwnedLeased
Renewable Energy and Conservation16 18 
Residential Products14 — 
Infrastructure Products— — 
Corporate— — 
Total34 29 

We believe the facilities we operate and their equipmentthat our properties are effectively utilized, well maintained, in good condition, and will be able to accommodate our capacity needs to meet current levels of demand. Our manufacturing sitesIn addition we believe that our properties are located to optimize customer service, market requirements, distribution capability and freight costs. We continuously review our anticipated requirements for facilities and, on the basis of that review, may from time to time acquire additional

facilities and/or dispose of existing facilities. Most recently, our operational excellence initiatives and portfolio changes have enabled us to reduce, and may further enable us to reduce in the future, the number of facilities necessary to meet our customer needs.
Item 3.Legal Proceedings
From time to time, the Company is named a defendant in legal actions arising out of the normal course of business. The Company is not a party to any material pending legal proceedings. The Company is also not a party to any other pending legal proceedings other than ordinary, routine litigation incidental to its business. The Company maintains liability insurance against risks arising out of the normal course of business.

Item 4.Mine Safety Disclosures
Not applicable.

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PART II
 
Item 5.Market for Common Equity and Related Stockholder Matters


The Company’s common stock is traded in the over-the-counter market and quoted on the NASDAQ Global Select Market (“NASDAQ”) under the symbol “ROCK.”


As of February 25, 2019,24, 2021, there were 6239 shareholders of record of the Company’s common stock. However, the Company believes that it has a significantly higher number of shareholdersbeneficial owners because of the number of shares that are held by nominees.banks, brokers, and other financial institutions.


The Company did not declare any cash dividends during the years ended December 31, 20182020 and 2017. Subsequent to December 31, 2018, the2019. The Company used existing cash on hand to redeem its $210 million of 6.25% Senior Subordinated 6.25% Notes and intends to use the remaining cash and cash generated by operations to reinvest in the businesses.businesses and to fund acquisitions. The Company's disclosure in Item 7 of this Annual Report on Form 10-K regarding Liquidity and Capital resourcesResources and disclosures in Note 9 of the Company’s audited consolidated financial statements included in Item 8 providesof this Annual Report on Form 10-K provide additional information regarding restrictions on potential dividends.



Performance Graph
The performance graph shown below compares the cumulative total shareholder return on the Company’s common stock, based on the market price of the common stock, with the total return of the S&P SmallCap 600 Index and the S&P SmallCap 600 Industrials Index for the five-year period ended December 31, 2018.2020. The comparison of total return assumes that a fixed investment of $100 was invested on December 31, 20132015 in common stock and in each of the foregoing indices and further assumes the reinvestment of dividends. The stock price performance shown on the graph is based on historical results and is not necessarily indicative of future price performance.
rock2018graph.jpg

rock-20201231_g3.gif
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Item 6.Selected Financial Data

The selected historical consolidated financial data for each
Table of the five years presented ended December 31 (in thousands, except per share data) are derived from the Company’s audited financial statements as reclassified for discontinued operations. The selected historical consolidated financial data should be read in conjunction with the Company’s audited consolidated financial statements and notes thereto contained in Item 8 and “Management’s Discussion and Analysis of Financial Condition and Results of Operations” set forth in Item 7 of this Annual Report on Form 10-K.
 Years Ended December 31,
 2018 2017 2016 2015 2014
Net sales$1,002,372
 $986,918
 $1,007,981
 $1,040,873
 $862,087
Intangible asset impairment$1,552
��$247
 $10,175
 $4,863
 $107,970
Income (loss) from operations$93,968
 $92,849
 $73,488
 $48,732
 $(70,417)
Interest expense$12,064
 $14,032
 $14,577
 $15,003
 $14,421
Income (loss) before taxes$79,945
 $77,908
 $49,983
 $37,100
 $(84,750)
Provision for (benefit of) income taxes$16,136
 $14,943
 $16,264
 $13,624
 $(2,958)
Income (loss) from continuing operations$63,809
 $62,965
 $33,719
 $23,476
 $(81,792)
Income (loss) from continuing operations per share – Basic$2.00
 $1.98
 $1.07
 $0.75
 $(2.63)
Weighted average shares outstanding – Basic31,979
 31,701
 31,536
 31,233
 31,066
Income (loss) from continuing operations per share – Diluted$1.96
 $1.95
 $1.05
 $0.74
 $(2.63)
Weighted average shares outstanding – Diluted32,534
 32,250
 32,069
 31,545
 31,066
Current assets$544,553
 $462,764
 $391,197
 $351,422
 $360,431
Current liabilities$392,872
 $171,033
 $152,088
 $185,395
 $134,085
Total assets$1,061,645
 $991,385
 $918,245
 $889,772
 $810,471
Total debt$210,405
 $210,021
 $209,637
 $209,282
 $209,911
Total shareholders’ equity$596,693
 $531,719
 $460,880
 $410,086
 $387,229
Capital expenditures$12,457
 $11,399
 $10,779
 $12,373
 $23,291
Depreciation$12,152
 $12,929
 $14,477
 $17,869
 $19,712
Amortization$8,222
 $8,761
 $9,637
 $12,679
 $5,720

As described in Note 1 to the Company's Consolidated Financial Statements, the Company has adopted ASC 606 - Revenue from Contracts with Customers effective January 1, 2018. As such, all prior period information has not been restated and continues to be reported under the accounting standard in effect for that period.


Item 7.Management’s Discussion and Analysis of Financial Condition and Results of Operations
The following Management’s Discussion and Analysis of Financial Condition and Results of Operations should be read in conjunction with the Company’s risk factors and its consolidated financial statements and notes thereto included in Item 1A and Item 8, respectively, of this Annual Report on Form 10-K. Certain information set forth in this Item 7 constitutes “forward-looking statements” as that term is used in the Private Securities Litigation Reform Act of 1995. Such forward-looking statements are based, in whole or in part, on management’s beliefs, estimates, assumptions, and currently available information. For a more detailed discussion of what constitutes a forward-looking statement and of some of the factors that could cause actual results to differ materially from such forward-looking statements, please refer to the “Safe Harbor Statement” on page 3 of this Annual Report on Form 10-K.

We use certain operating performance measures, specifically consolidated gross margin, operating margin by segment and consolidated operating margin, to manage our businesses, set operational goals, and establish performance targets for incentive compensation for our employees. We define consolidated gross margin as a percentage of total consolidated gross profit to total consolidated net sales. We define operating margin by segment as a percentage of total income from operations by segment to total net sales by segment and consolidated operating margin as a percentage of total consolidated income from operations to total consolidated net sales. We believe gross margin and operating margin may be useful to investors in evaluating the profitability of our segments and Company on a consolidated basis.
Company Overview
Gibraltar Industries, Inc. (the "Company") is a leading manufacturer and distributor of building products for residential, industrial, infrastructure, renewable energy and conservation markets. Our business strategy focuses on significantly elevating and accelerating the growth and financial returns of the Company. We strive to deliver best-in-class, sustainable value creation for our shareholders for the long-term. This strategy is intended to drive a transformational change in the Company’s portfolio and its financial results. It has four key elements which are: operational excellence, product innovation, portfolio management, and acquisitions as a strategic accelerator.
The Company serves customers primarily throughoutin North America. Our customers include major home improvement retailers, wholesalers, industrial distributors, contractors, solarAmerica including renewable energy (solar) developers, and institutional and commercial growers of plants. As of December 31, 2018, we operated 40 facilities in 18 states, Canada, Chinafood and Japan which includes 30 manufacturing facilitiesplants, home improvement retailers, wholesalers, distributors, and five distribution centers, giving us a base of operationscontractors. Our operational infrastructure provides the necessary scale to provide customer support delivery, service and quality to a number oflocal, regional, and national customers and providing us with manufacturing and distribution efficiencies in North America, as well as a presence in Asianeach of our markets.

The Company operates and reports its results in the following three reporting segments:
Residential Products;
Industrial and Infrastructure Products; and
Renewable Energy and ConservationConservation;
Residential Products; and
Infrastructure Products.
The segments and end markets our businesses serve include residential housing, industrial manufacturing, transportation infrastructure, and renewable energy and conservation. These end markets are subject to economic conditions that are influenced by various factors. These factors include but are not limited to changes in general economic conditions, interest rates, exchange rates, commodity costs, demand for residential construction, demand for repair and remodeling, governmental policies and funding, tax policies and incentives, tariffs, trade policies, the level of non-residential construction and infrastructure projects, the need for protection of high value assets, demand for renewable energy sources, and climate change.
In 2018, we completed the fourth year of our five year transformation strategy, delivering on our promise of making more money, at a higher rate of return, with a more efficient use of capital for the fourth year in a row. By executing on our four-pillar strategy, we:
Achieved continued margin improvement from 80/20 simplification initiatives;
Recovered material cost inflation in a volatile environment caused by the steel and aluminum tariffs announced earlier in the year. By fairly allocating price increases by market and by segment, we recovered costs while ensuring that our customers remain competitive;
Increased the percentage of higher-margin patented products, achieving organic growth through the commercialization of our perimeter security and solar tracker solutions;
Further refined our portfolio to limit our downside risk and take advantage of rising tides in the renewable energy and conservation segments; and
Positioned the Company for the next step in its transformation by reducing our debt and bringing on a new CEO with proven expertise in achieving organic and M&A growth.



We believe the key elements of our strategy enabled us, andoutlined in Item 1. Business will continue to allow us to respond timely to changes in the end markets we serve. We have and expect to continue to examine the need for restructuringthese factors.

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Table of our operations, including consolidation of facilities, reducing overhead costs, curtailing investments in inventory, and managing our business to generate incremental cash. As noted above in our accomplishments for 2018, we believe our current strategy enabled us to better react to volatility in commodity costs and fluctuations in customer demand, along with helping to improve margins. We have used the improved cash flows generated by these initiatives to pay down and maintain low levels of debt, improve our liquidity position, and invest in growth initiatives. Overall, we continue to strive to achieve stronger financial results, make more efficient use of capital, and deliver higher shareholder returns.Contents

Results of Operations
Year Ended December 31, 20182020 Compared to Year Ended December 31, 20172019
The following table sets forth selected results of operations data (in thousands) and its percentages of net sales for the years ended December 31:
2018 201720202019
Net sales$1,002,372
 100.0% $986,918
 100.0 %Net sales$1,032,578 100.0 %$898,233 100.0 %
Cost of sales760,012
 75.8% 750,374
 76.0 %Cost of sales776,235 75.2 %678,336 75.5 %
Gross profit242,360
 24.2% 236,544
 24.0 %Gross profit256,343 24.8 %219,897 24.5 %
Selling, general, and administrative expense146,840
 14.6% 143,448
 14.6 %Selling, general, and administrative expense149,153 14.4 %139,085 15.5 %
Intangible asset impairment1,552
 0.2% 247
  %
Income from operations93,968
 9.4% 92,849
 9.4 %Income from operations107,190 10.4 %80,812 9.0 %
Interest expense12,064
 1.2% 14,032
 1.4 %Interest expense703 0.1 %2,323 0.3 %
Other expense1,959
 0.2% 909
 0.1 %
Other (income) expenseOther (income) expense(1,272)(0.1)%408 — %
Income before taxes79,945
 8.0% 77,908
 7.9 %Income before taxes107,759 10.4 %78,081 8.7 %
Provision for income taxes16,136
 1.6% 14,943
 1.5 %Provision for income taxes24,468 2.3 %18,153 2.0 %
Income from continuing operations63,809
 6.4% 62,965
 6.4 %Income from continuing operations83,291 8.1 %59,928 6.7 %
Loss from discontinued operations
 % (405) (0.1)%
(Loss) income from discontinued operations(Loss) income from discontinued operations(18,725)(1.8)%5,163 0.5 %
Net income$63,809
 6.4% $62,560
 6.3 %Net income$64,566 6.3 %$65,091 7.2 %
The following table sets forth the Company’s net sales by reportable segment for the years ended December 31 (in thousands):
 Change due to
 20202019Total
Change
AcquisitionsOperations
Net sales:
Renewable Energy and Conservation$447,567 $373,023 $74,544 $84,598 $(10,054)
Residential Products522,814 461,630 61,184 5,315 55,869 
Infrastructure Products62,197 63,580 (1,383)— (1,383)
Consolidated$1,032,578 $898,233 $134,345 $89,913 $44,432 
 
 2018 2017 
Total
Change
Net sales:     
Residential Products$463,216
 $466,603
 $(3,387)
Industrial and Infrastructure Products223,006
 215,211
 7,795
Less Inter-Segment Sales(1,103) (1,247) 144
 221,903
 213,964
 7,939
Renewable Energy and Conservation317,253
 306,351
 10,902
Consolidated$1,002,372
 $986,918
 $15,454


Consolidated net sales increased by $15.5$134.3 million, or 1.6%15.0%, for 20182020 compared to 2017.2019. The increase was primarily the result of a 4.6%15.0% increase in pricing to customers, along with incremental salesrevenue was driven by the Renewable Energy and Conservation and Residential Products segments. Sales generated from our recent2020 acquisitions of Thermo, Delta Separations and Architectural Mailboxes, and the prior year acquisition of SolarBOSApeks, contributed 10.0% or $89.9 million to the growth from the prior year. Organic growth of 4.9%, or $44.4 million was a result of increased volume in our Residential Products segment, which more than offset the organic volume declines in both our Renewable Energy and Conservation segment in August of 2018, partially offset by a 3.8% decrease in net sales volume.

Net sales inand our Residential Products segment decreased 0.7%, or $3.4 million, to $463.2 million in 2018 compared to $466.6 million in 2017. The decrease from the prior year was primarily due to higher storm-related roofing activity

in 2017, and a slight decline in the commercial/multi-family construction market, partially offset by steady customer demand for rain dispersion products.
Net sales in our Industrial and Infrastructure Products segment increased 3.7%, or $7.9 million, to $221.9 million in 2018 compared to $214.0 million in 2017. The increase in revenue in the current year was primarily the combined result of pricing actions along with contributions from new innovative industrial products.segments.
Net sales in our Renewable Energy and Conservation segment increased 3.6%20.0%, or $10.9$74.5 million, to $317.3$447.6 million in 20182020 compared to $306.4$373.0 million in 2017. Continued traction2019. Sales generated by the current year acquisitions of innovative productsThermo and Delta Separations, along with contributionsthe prior year acquisition of Apeks, contributed $84.6 million, or 22.7%, to the increase in the current year. Organic revenue decline of $10.1 million partially offset this increase, the result of continued weakness in cannabis and hemp markets more than offsetting participation gains in our renewable energy related business. Backlog improved 22% year over year for this segment, driven by strength in the fruit and vegetable market and strong end market demand in renewable energy.

Net sales in our Residential Products segment increased 13.3%, or $61.2 million, to $522.8 million in 2020 compared to $461.6 million in 2019. The increase from the prior year was the result of continued solid activity in the repair and remodel market, participation gains across our various distribution channels along with $5.3 million of sales generated by our 2020 acquisition of SolarBOSArchitectural Mailboxes.

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Table of Contents
Net sales in August 2018 droveour Infrastructure Products segment decreased 2.2%, or $1.4 million, to $62.2 million in 2020 compared to $63.6 million in 2019, Volume declined as the increased revenues.pandemic continued to impact existing and new project schedules, especially in segments like airport runway maintenance, where customers have delayed spending. The volume decline was partially offset by an increase in pricing to customers. Ending backlog improved slightly from the prior year.
Our consolidated gross margin increased to 24.2%24.8% for 20182020 compared to 24.0%24.5% for 2017. The2019. This increase was due to improved margin wasoperating execution in all of our core businesses the result of effective price and material cost management, benefits from our 80/20 profit improvementsimplification initiatives, and incremental costs for design refinement and field improvements for our solar tracking solution incurred in the prior year. Partially offsetting the margin impact of material cost inflation recovery actions.above improvements were lower gross margins generated from our recent acquisitions.
Selling, general, and administrative ("SG&A") expenses increased by $3.4$10.1 million, or 2.4%7.2%, to $146.8$149.2 million for 20182020 from $143.4$139.1 million for 2017.2019. The $3.4$10.1 million increase was primarily due to a $4.3$13.8 million increaseof incremental SG&A expenses recorded year over year for our recent acquisitions and transaction costs to complete those acquisitions closed during the year, along with investments in performance-based compensation expenses, partially offsetthe development of our organization and safety of our team by a $1.4 million decrease in restructuring chargesreallocating SG&A spending, primarily travel related to our 80/20 initiatives.expenditures. Partially offsetting these increases was decreased spending for exit activity costs of approximately $4.0 million. SG&A expenses as a percentage of net sales was 14.6%decreased to 14.4% for both 2018 and 2017.
During 2018, we recognized intangible asset impairment charges of $1.6 million. The impairment was primarily the result of a reduction in fair values of indefinite-lived trademarks in our Renewable Energy and Conservation segment along with charges resulting from a realignment of businesses within this segment. In 2017, we recognized intangible asset impairment charges of $0.2 million related2020 compared to indefinite-lived trademarks in our Renewable Energy and Conservation segment due to a realignment of businesses within this segment.

15.5% for 2019.
The following table sets forth the Company’s income from operations and income from operations as a percentage of net sales by reportable segment for the years ended December 31 (in thousands):
2018 2017 
Total
Change
20202019Total
Change
Income from operations:       Income from operations:
Renewable Energy and ConservationRenewable Energy and Conservation$40,738 9.1 %$47,558 12.7 %$(6,820)
Residential Products$69,838
15.1 % $76,893
16.5 % $(7,055)Residential Products94,430 18.1 %63,047 13.7 %31,383 
Industrial and Infrastructure Products15,336
6.9 % 8,159
3.8 % 7,177
Renewable Energy and Conservation37,423
11.8 % 30,218
9.9 % 7,205
Infrastructure ProductsInfrastructure Products7,233 11.6 %6,428 10.1 %805 
Unallocated Corporate Expenses(28,629)(2.9)% (22,421)(2.3)% (6,208)Unallocated Corporate Expenses(35,211)(3.4)%(36,221)(4.0)%1,010 
Consolidated income from operations$93,968
9.4 % $92,849
9.4 % $1,119
Consolidated income from operations$107,190 10.4 %$80,812 9.0 %$26,378 
 
Our Residential Products segment generated an operating margin of 15.1% in 2018 compared to an operating margin of 16.5% in 2017. The decrease in operating margin is primarily due to a decrease in volume leverage along with the effects of an unfavorable product mix and a $1.5 million increase in restructuring charges as compared to the prior year.
Our Industrial and Infrastructure Products segment operating margin increased to 6.9% in 2018 compared to 3.8% in 2017. The improved margin year over year was the result of a more favorable alignment of material costs to customer selling prices along with operational efficiencies resulting from the Company’s 80/20 initiatives and higher demand for our new innovative industrial products.
The Renewable Energy and Conservation segment generated an operating margin of 11.8%9.1% in 20182020 compared to 9.9%12.7% in 2017.2019. The improvementdecrease in operating margin was primarilythe net result of expected lower margins generated by our recent acquisitions as we continue to integrate them operationally, offset by favorable product and services mix and strong execution in our renewable energy business, as well as the absence of incremental costs incurred during the prior year for design refinement and field improvements for our solar tracking solution.

Our Residential Products segment operating margin increased to 18.1% in 2020 compared to 13.7% in 2019. The increase in operating margin was largely the result of volume leverage, effective price and operational improvements resultingmaterial cost management and continued benefits from the Company’s 80/20 simplification initiatives, and lower charges for these initiatives asalong with a $3.1 million decrease in exit activity costs compared to the prior year.

Our Infrastructure Products segment operating margin increased to 11.6% in 2020 compared to 10.1% in 2019. The increase in operating margin year over year was the result of strong execution to compensate for volume declines in non-fabricated products, mainly from our airport customers along with favorable alignment of material costs to customer selling prices.
Unallocated corporate expenses increased $6.2decreased $1.0 million, or 27.7%2.8%, for 20182020 from $22.4$36.2 million for 20172019 to $28.6$35.2 million for 2018. The higher expenses in the current year were primarily the result of a $4.3 million increase in performance-based compensation expenses as compared to the prior year.
The Company recorded other expense of $2.0 million in 2018 and $0.9 million in 2017, respectively. The increase in other expense from the prior year was due to the $3.1 million reversal of an indemnification asset resulting from the

lapse in the statute of limitations of an uncertain tax position related to an acquisition, partially offset by gains from foreign currency fluctuations.
Interest expense decreased $2.0 million to $12.1 million for 2018 from $14.0 million for 2017.2020. The decrease in expense was duethe result of lower performance-based compensation expenses partially offset by transaction costs to complete those acquisitions closed during the offsetting effectyear.
Interest expense decreased $1.6 million to $0.7 million for 2020 from $2.3 million for 2019. The decrease in expense resulted from the redemption of income earnedthe Company's outstanding $210 million of 6.25% Senior Subordinated Notes during the first quarter of 2019. At December 31, 2020, the Company had $85.0 million outstanding on our interest-bearing cash balances forits revolving credit facility, the current year comparedresult of funds borrowed to help finance the prior year.acquisition of TerraSmart in December 2020. During 2018 and 2017,2019, no amounts were outstanding under our revolving credit facility.
We recognized a provision for income taxes
27

Table of $16.1 million, an effective tax rate of 20.2%, for 2018 compared with a provision for income taxes of $14.9 million, an effective tax rate of 19.2%, for 2017. The difference between the Company's recorded charge for 2018 and the expense that would result from applying the U.S. statutory rate of 21% is primarily due to net favorable discrete items and a benefit from the 2018 reversal of an uncertain tax position related to an acquisition as a result of the lapse of the statute of limitations. On December 22, 2017, the United States enacted the the Tax Cuts and Jobs Act ("Tax Reform Act") which significantly changes U.S. tax laws by lowering the federal corporate income tax rate from 35% to 21%, imposing a one-time transition tax on deemed repatriated foreign earnings, moving to a territorial tax system, broadening the tax base and other changes. Due to this new legislation, a net benefit of $12.5 million was recorded in 2017, the result of a $16.2 million benefit primarily from the re-measurement of our net U.S. deferred tax liabilities at the lower corporate tax rate partially offset by an expense of $3.7 million related to foreign earnings.Contents
Results of Operations
Year Ended December 31, 2017 Compared to Year Ended December 31, 2016
The following table sets forth selected results of operations data (in thousands) and its percentages of net sales for the years ended December 31:
 2017 2016
Net sales$986,918
 100.0 % $1,007,981
 100.0%
Cost of sales750,374
 76.0 % 763,219
 75.7%
Gross profit236,544
 24.0 % 244,762
 24.3%
Selling, general, and administrative expense143,448
 14.6 % 161,099
 16.0%
Intangible asset impairment247
  % 10,175
 1.0%
Income from operations92,849
 9.4 % 73,488
 7.3%
Interest expense14,032
 1.4 % 14,577
 1.4%
Other expense909
 0.1 % 8,928
 0.9%
Income before taxes77,908
 7.9 % 49,983
 5.0%
Provision for income taxes14,943
 1.5 % 16,264
 1.7%
Income from continuing operations62,965
 6.4 % 33,719
 3.3%
Loss from discontinued operations(405) (0.1)% (44) %
Net income$62,560
 6.3 % $33,675
 3.3%
The following table sets forth the Company’s net sales by reportable segment for the years ended December 31 (in thousands):
  Change due to
 2017 2016 
Total
Change
 Divestitures Acquisitions Operations
Net sales:           
Residential Products$466,603
 $430,938
 $35,665
 $
 $5,669
 $29,996
Industrial and Infrastructure Products215,211
 296,513
 (81,302) (73,419) 
 (7,883)
Less Inter-Segment Sales(1,247) (1,495) 248
 
 
 248
 213,964
 295,018
 (81,054) (73,419) 
 (7,635)
Renewable Energy and Conservation306,351
 282,025
 24,326
 (8,197) 17,109
 15,414
Consolidated$986,918
 $1,007,981
 $(21,063) $(81,616) $22,778
 $37,775


Consolidated net sales decreased by $21.1 million, or 2.1%, to $986.9 million for 2017 compared to $1.01 billion for 2016. The decrease in sales was the result of divestitures related to the Company's portfolio management activities during 2016 along with a slight decline in net sales volumes in our Industrial and Infrastructure segment. During 2016, the Company sold its European industrial manufacturing business to a third party and exited both the European residential solar racking business and the Company's U.S. bar grating product line. These divestitures resulted in a decrease in revenues of $81.6 million from the prior year. Largely offsetting these decreases were increased net sales volumes from both our Residential Products and Renewable Energy and Conservation Segments, including contributions from our recent acquisitions of Nexus in October 2016 and Package Concierge in February 2017, respectively. The above results include a net increase in volume of 2.3% as well as a modest 1.5% increase in pricing to customers.

Net sales in our Residential Products segment increased 8.3%, or $35.7 million, to $466.6 million in 2017 compared to $430.9 million in 2016. The increase from prior year was primarily the result of a 4.0% net increase in volume along with $5.7 million of sales generated from the acquisition of Package Concierge and a 3.0% increase in pricing to customers. The higher volume was due to a strong demand for building products in the repair and remodel and new housing construction markets and growing demand for the Company’s centralized mail systems and electronic package solutions.
Net sales in our Industrial and Infrastructure Products segment decreased 27.5%, or $81.1 million, to $214.0 million in 2017 compared to $295.0 million in 2016. The decrease in net sales was the combined result of the Company's exit from its U.S. bar grating product line and the divestiture of our European industrial manufacturing business, along with a 3.0% decrease in volume as compared to the prior year. Excluding the impact of the divestitures, a decrease in demand for our infrastructure products, which include components for bridges and elevated highways, further contributed to the overall segment revenue decline due to continued delay in infrastructure projects. We expect this decline to be temporary as evidenced by an increase in segment backlog during the current year. Partially offsetting the above decrease was increased volume in our industrial products as new products in these businesses continue to gain traction.
Net sales in our Renewable Energy and Conservation segment increased 8.6%, or $24.3 million, to $306.4 million in 2017 compared to $282.0 million in 2016. The increase in 2017 was due to sales generated from the acquisition of Nexus in October 2016 along with increased volume in our domestic markets, partially offset by the exit of the Company's small European residential solar racking business.
Our consolidated gross margin decreased to 24.0% for 2017 compared to 24.3% for 2016. The decline was primarily the result of a less favorable alignment of material costs to customer selling prices. Largely offsetting this less favorable alignment were benefits from portfolio management actions and the Company's 80/20 restructuring initiatives taken during 2016. Furthermore, the related costs associated with those actions decreased by $9.0 million as compared to the prior year. In 2016, the Company sold or exited less profitable businesses or products lines in order to enable the Company to re-allocate leadership, time, capital and resources to the platforms and businesses with the highest potential revenue and margins. In addition, other portfolio management actions and restructuring activities were taken resulting from our 80/20 initiatives and contributed to the margin as well.
Selling, general, and administrative ("SG&A") expenses decreased by $17.7 million, or 11.0%, to $143.4 million for 2017 from $161.1 million for 2016. The $17.7 million decrease was due to a $15.3 million decrease in performance-based compensation expenses, a combination of the lower price of the Company's shares as compared to the prior year and lower achievement under the Company's performance base compensation programs, along with a reduction of expenses as a result of the Company's 2016 divestitures. These decreases were partially offset by incremental expense recorded in 2017 from the acquisitions of Nexus and Package Concierge. SG&A expenses as a percentage of net sales decreased to 14.6% for 2017 compared to 16.0% for 2016.
In 2017, we recognized intangible asset impairment charges of $0.2 million related to indefinite-lived trademarks in our Renewable Energy and Conservation segment due to a realignment of businesses within this segment. During 2016, we recognized intangible asset impairment charges of $10.2 million. These charges primarily resulted from the decision in the fourth quarter of 2016 to discontinue the Company's U.S. bar grating product line and its European residential solar racking business which resulted in lower cash flows and estimated fair values of certain reporting units. The largest portion of the impairment was $8.0 million related to indefinite-lived intangibles in our Industrial and Infrastructure Products segment, with the balance of the charges occurring in the Renewable Energy and Conservation segment.

The following table sets forth the Company’s income from operations and income from operations as a percentage of net sales by reportable segment for the years ended December 31 (in thousands):
 2017 2016 
Total
Change
Income from operations:       
Residential Products$76,893
16.5 % $65,241
15.1 % $11,652
Industrial and Infrastructure Products8,159
3.8 % 1,306
0.4 % 6,853
Renewable Energy and Conservation30,218
9.9 % 43,214
15.3 % (12,996)
Unallocated Corporate Expenses(22,421)(2.3)% (36,273)(3.6)% 13,852
Consolidated income from operations$92,849
9.4 % $73,488
7.3 % $19,361
Our Residential Products segment generated an operating margin of 16.5% in 2017 compared to an operating margin of 15.1% in 2016. The increase of $11.7 million of operating profit is primarily due to the benefits of operational efficiencies and contributions from 80/20 simplification initiatives, along with lower costs incurred related to these initiatives as compared to the prior year.
Our Industrial and Infrastructure Products segment operating margin increased to 3.8% in 2017 compared to 0.4% in 2016. The increase in the current year was a result of lower charges for portfolio management and restructuring initiatives of $16.2 million as compared to the prior year and operational efficiencies resulting from the Company’s 80/20 initiatives, partially offset by a less favorable alignment of material costs to customer selling prices.
The Renewable Energy and Conservation segment generated an operating margin of 9.9% in 2017 compared to 15.3% in 2016. The decrease was primarily due to an unfavorable alignment of material costs to customer selling prices net of pricing actions, partially offset by operational improvements resulting from the Company’s 80/20 initiatives and lower charges for portfolio management and restructuring initiatives as compared to the prior year.
Unallocated corporate expenses decreased $13.9 million, or 38.2%, for 2017 from $36.3 million for 2016 to $22.4 million for 2017. The lower expenses in the current year were primarily the result of a $13.4 million decrease in performance-based compensation expenses, a combination of the lower price of the Company's shares and lower achievement under the Company's performance based compensation programs as compared to the prior year, along with a reduction in senior leadership transition costs of $2.0 million.
The Company recorded other income of $1.3 million in 2020 and other expense of $0.9$0.4 million in 2017. Other expense of $8.9 million in 2016 is primarily comprised2019, respectively. The change from the prior year was the result of the $8.8$1.9 million pre-tax lossgain on the sale of our European industrial manufacturing business.
Interest expense decreased $0.6 million to $14.0 million for 2017 from $14.6 million for 2016. During 2017 and 2016, no amounts were outstanding under our revolving credit facility.the Company's self-guided apartment tour application business within the Residential Products segment.
We recognized a provision for income taxes of $14.9$24.5 million, an effective tax rate of 19.2%22.7%, for 20172020 compared with a provision for income taxes of $16.3$18.2 million, an effective tax rate of 32.5%23.2%, for 2016. On December 22, 2017,2019. The effective tax rates for 2020 and 2019 exceeded the United States enacted the Tax Reform Act which significantly changes U.S. tax laws by lowering the federal corporate income taxstatutory rate from 35%of 21% due to 21%, imposing a one-time transition tax on deemed repatriated foreign earnings, moving to a territorial tax system, broadening the tax basestate taxes and other changes. Due to this new legislation, a net benefit of $12.5 million was recorded in 2017, the result of a $16.2 million benefit primarily from the re-measurement of our net U.S. deferred tax liabilities at the lower corporate tax ratenondeductible permanent differences partially offset by an expense of $3.7 million related to foreign earnings.
The difference between the Company’s recorded charge for 2016 and the expense that would result from applying the U.S. statutory rate of 35% is due to deductible permanent differences and favorable discrete items partially offset by state taxes. The aforementioned favorable discrete items were primarily comprised of the $6.7 million benefit recorded by the Company in 2016 related to the worthless stock deduction and the associated inter-company debt discharge resulting from the sale of its European industrial manufacturing business to a third party in the same period.items.


Outlook



For 2019,2021, we beginenter the year with confidence in theour end markets we target across our businesses but areremain cautious about the generalongoing pandemic landscape, the recovery of the U.S. and global economy, trade actions,availability and continued volatilityinput cost of key materials, as well as recent operating disruptions related to severe weather across the U.S. We will continue executing our current operating playbook, maintaining a safe environment for our people, and supporting our customers. As in material costs. Our plan is2020, we will continue working on the business and investing to accelerate innovative product development, continue to drive 80/20 acrossstrengthen our businesses and processes, and seek acquisitions in attractive end markets. At the end of the year, we expectuphold our commitments to deliver increased profits and make excellent progress in establishing a robust platform for sustainable organic growth.our stakeholders.

The Company is providing its guidance for revenues and earnings for the full year 2019.2021. Gibraltar expects 20192021 consolidated revenues to be in the range of $1.03$1.30 billion and $1.05$1.35 billion, up from $1.0$1.03 billion for 2018.2020. GAAP EPS for full year 20192021 is expected to be between $1.95$2.78 and $2.10,$2.95, compared with $1.96$2.53 in 2018.2020.

Liquidity and Capital Resources
General
Our principal capital requirements are to fund our operations' working capital and capital improvements and to fundprovide capital for acquisitions. We will continue to invest in growth opportunities as appropriate while focusing on working capital efficiency and profit improvement opportunities to minimize the cash invested to operate our business. We have successfully generated positive cash flows from operating activities which have funded our capital requirements and recent acquisitions as noted below in “Cash Flows.”
As of December 31, 2018,The following table sets forth our liquidity of $587.8 million consisted of $297.0 million ofposition as of:
(in thousands)December 31, 2020December 31, 2019
Cash and cash equivalents$32,054 $191,363 
Availability on revolving credit facility309,175 393,991 
$341,229 $585,354 

We believe that our cash on hand and $290.8 million of availabilityavailable borrowing capacity provided under our revolving credit facility as compared to liquidity of $511.1 million as of December 31, 2017. On January 24, 2019, we entered into the Company's Sixth Amended and Restated Credit Agreement (the "Senior Credit Agreement") which includes a 5-year, $400 million revolving credit facility. The Senior Credit Agreement also provides the Company the opportunity, upon request, to increase the amount of the revolving credit facility to $700 million. Utilizing existing cash on hand, the Company repaid $210 million of 6.25% Senior Subordinated Bonds on February 1, 2019. We believe that our resulting low leverage and increased borrowing capacity along with enhanced flexibility in our new Senior Credit Agreement, provide us with ample liquidity.liquidity and capital resources to weather the economic impacts of the COVID-19 pandemic while continuing to invest in operational excellence, growth initiatives and the development of our organization. After pausing earlier in the year as the pandemic unfolded, we continued with our strategic initiatives to invest in opportunities that strengthen our business platforms for the markets we serve through the acquisitions of Architectural Mailboxes, Sunfig and TerraSmart in the fourth quarter of 2020. We continue to remain focused on managing our working capital, which may include adjusting scheduled deliveries of inventory to match current demand levels, closely monitoring customer credit and collection activities, and working to extend payment terms. We believe our liquidity, together with the cash expected to be generated from operations, should be sufficient to fund working capital needs and simplification initiatives that likely will need cash to fund transitions and future growth. We continue to search for strategic acquisitions and larger acquisitions may require additional borrowings and/or the issuance of our common stock.growth initiatives.

Our Senior Credit Agreement provides the Company with liquidity and capital resources for use by our U.S. operations. Historically, our foreign operations have generated cash flow from operations sufficient to invest in working capital and fund their capital improvements. As of December 31, 2018,2020, our foreign subsidiaries held $34.3$21.8 million of cash in U.S. dollars. As a result

During 2020, we opted to defer remittance of the Tax Cutsemployer portion of Social Security tax as provided in the Coronavirus, Aid, Relief and JobsEconomic Security Act ("Tax ReformCARES Act") signed into law on December 22, 2017, $22.5, which allowed us to retain $4.4 million in cash during 2020 that would have otherwise been remitted to the federal government. The deferred tax payments will be repaid equally in 2021 and 2022. The CARES Act, along with other foreign government initiatives, also provides for job retention programs, which have allowed some of our cash held by foreign subsidiaries at December 22, 2017, is expectedbusinesses to be repatriated to the U.S. Subsequent cash generated by our foreign subsidiaries will be reinvested into their operations.receive payroll tax credits or subsidies during 2020.


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Over the long-term, we expect that future investments, including strategic business opportunities such as acquisitions, may be financed through a number of sources, including internally available cash, availability under our revolving credit facility, new debt financing, the issuance of equity securities, or any combination of the above. AnyAll potential acquisitions are evaluated based on our acquisition strategy, which includes the enhancement of our existing products, operations, or capabilities, expanding our access to new products, markets, and customers, with the goal of creating compounding and the improvement ofsustainable shareholder value. Our 2018 acquisition of SolarBOS and our 2017 acquisition of Package Concierge were funded by cash on hand.

These expectations are forward-looking statements based upon currently available information and may change if conditions in the credit and equity markets deteriorate or other circumstances change. To the extent that operating cash flows are lower than current levels, or sources of financing are not available or not available at acceptable terms, our future liquidity may be adversely affected.


Cash Flows

The following table sets forth selected cash flow data for the years ended December 31 (in thousands):
20202019
Cash provided by (used in):
Operating activities of continuing operations$73,016 $112,536 
Investing activities of continuing operations(324,677)(17,279)
Financing activities of continuing operations79,463 (217,050)
Discontinued operations14,055 15,005 
Effect of exchange rate changes(1,166)1,145 
Net decrease in cash and cash equivalents$(159,309)$(105,643)
 2018 2017
Cash provided by (used in):   
Operating activities of continuing operations$97,545
 $70,070
Investing activities of continuing operations(14,549) (16,797)
Financing activities of continuing operations(6,180) (2,598)
Effect of exchange rate changes(2,090) 1,428
Net increase in cash and cash equivalents$74,726
 $52,103
Operating Activities
During the year ended December 31, 2018, we generated netNet cash fromprovided by operating activities totaling $97.6of continuing operations for 2020 of $73.0 million composedconsisted of net income from continuing operations of $63.8$83.3 million, plus non-cash net charges totaling $38.5$33.4 million, that includedwhich include depreciation, amortization, deferred income taxes,gain on sale of business, stock compensation, intangible asset impairment and other non-cash exit activity costs, partiallycharges, offset by a net investment in working capital and other net assets of $4.7$43.7 million. The investment in working capital and other net assets was largely by an investment of $42.4 million in Thermo, one of our recent acquisitions, which was undercapitalized at purchase, along with a decrease in accrued expenses and other non-current liabilities correlated to the timing of customer billings and payments.

Net cash provided by operating activities of continuing operations for the year ended December 31, 2017 was $70.12019 of $112.5 million primarily driven byconsisted of income from continuing operations of $63.0$59.9 million, along with non-cash net charges totaling $22.1$40.0 million, that includedwhich include depreciation, amortization, deferred income taxes, stock compensation, and other non-cash exit activity costs, partially offset bycharges, and a increase in working capital of $15.0 million.
During 2018, the cash investeddecrease in working capital and other net assets of $4.7 million included $16.9 million increase in inventory and $4.8 million decrease in accounts payable, partially offset by a $9.7 million decrease in accounts receivable and a $7.3 million increase in accrued expenses and other non-current liabilities. The increase in inventory was due to material cost increases along with increased unit volume to hedge against potential supply shortages due to tariffs. Accounts payable decreased due to seasonality and timing of year-end vendor payments.$12.6 million. The decrease in accounts receivable, which includes costs in excess of billings, is primarilynet working capital and other net assets was largely the result of the seasonality of customer contracts and related payments received that impact our business. The increase in accrued expenses and other non-current liabilities was due to both billings in excess of costs correlated to theplanned inventory management reduction initiatives along with more favorable timing of customer payments on contracts, in progress and customer deposits on contracts in backlog at the end of the year, partially offset by payments related to the Company's performance based incentive plans.an increase in accounts receivable resulting from increased sales volume in our Renewable Energy and Conservation segment.

Investing Activities
Net cash used in investing activities of continuing operations for 20182020 of $14.5$324.7 million consisted of net cash paid of $313.7 million for the acquisitions of five businesses in 2020 and capital expenditures of $12.5 million and net cash paid for the acquisition of SolarBOS of $5.2$13.1 million, partially offset by net proceeds of $3.2$2.0 million from the sale and lease-back of propertya business within the Residential Products segment and equipment. Net cash used in investing activities for 2017 of $16.8 million primarily consisted of $18.3 million of net cash paid for the acquisition of Package Concierge, capital expenditures of $11.4 million and a payment of $0.2 million related to the final purchase adjustment for the acquisition of Nexus. These payments were partially offset by net proceeds of $13.1$0.1 million from the sale of property and equipment.
Net cash used in financinginvesting activities of continuing operations for 20182019 of $6.2$17.3 million consisted of capital expenditures of $8.8 million and net cash paid for the purchaseacquisition of treasury stockApeks LLC of $7.2 million primarily due to a large number of performance awards that vested in June 2018 and payment of long-term debt borrowings of $0.4$8.6 million, partially offset by thenet proceeds receivedof $0.1 million from the issuancesale of common stockproperty and equipment.
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Financing Activities
Net cash provided by financing activities for 2020 of $79.5 million due towas primarily driven by proceeds from a draw on our revolving credit facility of $85 million, as well as the $1.1 million in net proceeds from stock option exercises. exercises, offset by $6.6 million in purchases of treasury stock related to the net settlement of tax obligations for participants in the Company's equity incentive plans.
Net cash used in financing activities for 20172019 of $2.6$217.1 million consistedwas primarily driven by the $212.0 million repayment of our 6.25% Notes and other debt, as well as the $4.3 million purchase of treasury stock related to the net settlement of $2.9tax obligations for participants in the Company's equity incentive plans, and the $1.2 million and paymentspayment of long-term debt borrowings of $0.4 millionissuance costs, all which were slightly offset by $0.5 million in net proceeds from stock option exercises.

See Note 9 to the proceeds received fromCompany's consolidated financial statements in Part II, Item 8, Financial Statements and Supplementary Data, of this Form 10-K for further information on the issuance of common stock of $0.7 million.
Company’s Senior Credit Agreement and Senior Subordinated Notes.
Our new Senior Credit Agreement is committed through January 23, 2024. Borrowings under the 2019 Senior Credit Agreement are secured by the trade receivables, inventory, personal property, equipment, and general intangibles of the Company’s significant domestic subsidiaries. The Senior Credit Agreement provides for a revolving credit facility and letters of credit in an aggregate amount equal to $400 million. The Company can request additional financing from the banks to increase the revolving credit facility to $700 million or enter into a term loan of up to $300 million subject to conditions set forth in the Senior Credit Agreement. The Senior Credit Agreement contains three financial covenants. As of December 31, 2018, the Company is in compliance with all three covenants.


Interest rates on the revolving credit facility are based on the LIBOR plus 1.125%. In addition, the revolving credit facility is subject to an undrawn commitment fee ranging between 0.15% and 0.25% based on the Total Leverage Ratio and the daily average undrawn balance.
As of December 31, 2018, we had $290.8 million of availability under our then existing revolving credit agreement, net of outstanding letters of credit of $9.2 million. No amounts were outstanding under our then existing revolving credit facility as of December 31, 2018 or 2017.
In addition to our Senior Credit Agreement, the Company issued $210.0 million of 6.25% Notes in January 2013 all of which were repaid February 1, 2019 with existing cash on hand. Provisions of the 6.25% Notes included, without limitation, restrictions on indebtedness, liens, and distributions from restricted subsidiaries, asset sales, affiliated transactions, dividends, and other restricted payments. Dividend payments were subject to annual limits and interest was paid semiannually on February 1 and August 1 of each year.
Off Balance Sheet Arrangements
As of December 31, 2018,2020, the Company did not have any off balance sheet arrangements other than operating leases, that had or were reasonably likely to have a current or future material effect on the Company's financial condition, changes in financial condition, revenues or expenses, results of operations, liquidity, capital expenditures, or capital resources. On January 1, 2019, the Company adopted Accounting Standards Update 2016-02 Leases (ASC 842) which requires the Company to record operating leases and right of use assets on its balance sheet. See Note 1 to the Company's consolidated financial statements in Part II, Item 8, Financial Statements and Supplementary Data, of this Form 10-K for further information on this recent accounting pronouncement to be adopted January 1, 2019.


Contractual Obligations
The following table summarizes by category our Company’s expected future cash outflows associated with contractual obligations in effect at December 31, 20182020 (in thousands):
 Payments Due by Period
Contractual ObligationTotalLess than
One Year
One to Three
Years
Three to
Five Years
More Than
Five Years
Operating lease obligations28,271 9,139 14,118 4,341 673 
Post-retirement payments4,186 435 907 934 1,910 
Management stock purchase plan (1)
6,738 3,510 2,720 370 138 
Purchase obligations (2)220,321 208,647 9,589 2,085 — 
Total$259,516 $221,731 $27,334 $7,730 $2,721 
 Payments Due by Period
Contractual ObligationTotal 
Less than
One Year
 
One to Three
Years
 
Three to
Five Years
 
More Than
Five Years
Fixed rate debt$210,000
 $210,000
 $
 $
 $
Interest on fixed rate debt1,094
 1,094
 
 
 
Operating lease obligations38,684
 14,304
 14,066
 8,609
 1,705
Pension and other post-retirement payments5,290
 597
 1,427
 972
 2,294
Management stock purchase plan (1)
15,287
 5,695
 6,893
 2,333
 366
Variable rate debt (including interest) (2)
2,090
 432
 843
 815
 
Performance stock unit awards9,082
 9,082
 
 
 
Other329
 
 329
 
 
Total$281,856
 $241,204
 $23,558
 $12,729
 $4,365


(1) Includes amounts due to retired participants of the Management Stock Purchase Plan (MSPP). Excludes the future payments due to active participants of the MSPP who have not notified the Company of their intended retirement date, which represents a liability of $14.1$12.8 million as of December 31, 2018.2020. The timing of future payments to active participants cannot be accurately estimated as we are uncertain of when active participants’ service to the Company will terminate. Active participants include those with pending retirements. Our policy does not recognize the contractual obligation until the participant has officially retired.

(2) Calculated usingThe purchase obligations are primarily comprised of purchase orders issued in the interest ratenormal course of business for inventory, minimum quantities of certain raw materials. Also included in effect of 1.75% at December 31, 2018.is a contractual obligation related to cloud services agreement.
Critical Accounting Estimates
The preparation of the financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make decisions based upon estimates, assumptions, and factors it considers relevant to the circumstances. Such decisions include the selection of applicable principles and the use of judgment in their application, the results of which could differ from those anticipated.

A summary of the Company’s significant accounting policies are described in Note 1 of the Company’s consolidated financial statements included in Part II, Item 8, Financial Statements and Supplementary Data, of this Annual Report on Form 10-K.
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Our most critical accounting estimates that require the most difficult, subjective and complex judgments include:
 
revenue recognition on contracts; and
the assessment of recoverability of goodwill and other indefinite-lived intangible assets.assets; and
the estimation of fair value for acquired assets and liabilities assumed in business combination transactions.
Management reviews these estimates on a regular basis and makes adjustments based on historical experience, current conditions, and future expectations. Management believes these estimates are reasonable, but actual results could differ from these estimates.


Revenue Recognition on Contracts
The vast majority of our sales contracts are for standard products with revenue recognized at the point in time we transfer control to the customer. The point in time we transfer control is based on when we determine the customer has legal title, significant risks and rewards of ownership of the asset, and we have a present right to payment for the product. However, revenue representing 32%40%, 41% and 28%38% of our 20182020, 2019 and 20172018 consolidated net sales, respectively, was recognized over time under the cost-to-cost method as we satisfied our performance obligations. This method of revenue recognition pertains to activities within the Industrial and Infrastructure Products and the Renewable Energy and Conservation and the Infrastructure Products segments.


Revenue recognized on contracts over time using the cost-to-cost method for measuring progress is recognized as work progresses toward completion based on the ratio of cumulative costs incurred to date to estimated total contract costs at completion. Revenues are recognized proportionally as costs are incurred under this method. Estimates of the total costs at completion for the performance obligations involvesinvolve subjective judgment and estimation to determine total costs expected to be incurred by the time the performance obligation has been completed and accepted by the customer. The estimates of total costs to be incurred at completion of each contract are sensitive to significant judgments and assumptions, such as the expected costs to complete installation, which are affected by customer site-specific conditions as well as availability and cost of third-party contractors to complete the installation process. These estimates, judgments and assumptions impact the timing and amount of net sales and cost of sales recognized on in-progress performance obligations with customers. We continuously review our estimates and the progress and performance of the performance obligation for substantially all contracts that we recognize revenue over time under the cost-to-cost method. Any adjustments or changes in these estimates affecting sales, costs and profits are recognized in the period in which the change becomes known using the cumulative catch-up method of accounting, resulting in the cumulative effect of changes reflected in the period. A significant change in an estimate on one or more contracts could have a material effect on our results of operations.
Contract costs include all direct costs related to contract performance. Selling and administrative expenses are charged to operations as incurred. Provisions for estimated losses on uncompleted contracts are made in the period in which such losses are determined. Because of inherent uncertainties in estimating costs, it is reasonably possible that changes in performance could result in revisions to cost and revenue, which are recognized in the period when the revisions are determined.
Goodwill and Other Indefinite-lived Intangible Asset Impairment Testing
Our goodwill and indefinite-lived intangible asset balances of $323.7$514.3 million and $43.9$56.6 million, respectively, which in aggregate represent 35%47% of total assets as of December 31, 2018,2020, are subject to impairment testing. We test goodwill and indefinite-lived intangible assets for impairment on an annual basis as of October 31 and at interim dates when indicators of impairment are present. Indicators of impairment could include a significant long-term adverse change in business climate, poor indicators of operating performance, or a sale or disposition of a significant portion of a reporting unit.
We test goodwill for impairment at the reporting unit level. We identify our reporting units by assessing whether the components of our Company constitute businesses for which discrete financial information is available and segment management regularly reviews the operating results of those components. We have twelveten reporting units, elevennine of which have goodwill.

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During interim periods, we evaluate the potential for goodwill impairment using a qualitative assessment by considering factors such as, but not limited to, macroeconomic conditions, industry conditions, the competitive environment, changes in the market for our products and services, regulatory and political developments, entity specific factors such as strategy, changes in key personnel, and overall financial performance. If, after completing this assessment, it is determined that it is more likely than not that the fair value of a reporting unit is less than its carrying value, we proceed to a quantitative impairment test. During 2020, the Company considered the current and future macroeconomic and market conditions, along with its current market capitalization, projected cash flows and internal and external forecasts, and projections relating to the impact of the COVID-19 pandemic on each of its reporting units. The Company determined that a triggering event has not occurred which would require an interim impairment test to be performed. During the interim periods of 2018,2020, we concluded that no indicators of impairment existed at interim dates and did not perform any quantitative interim impairment tests related to goodwill and indefinite-lived intangible assets.


The Company conducts its annual impairment test on all twelveten reporting units as of October 31, during which we test goodwill and other indefinite-lived intangible assets for impairment. On an annual basis, the quantitative goodwill impairment test consists of comparing the fair value of a reporting unit as determined using two valuation methodologies described below, with the carrying amount of the reporting unit including goodwill. If the carrying amount of the reporting unit exceeds the reporting unit’s fair value, an impairment loss is recognized in the amount by which the carrying value of the reporting unit exceeds the fair value of the reporting unit.


The annual quantitative goodwill impairment test requires subjective and complex judgment due to the significant estimation required in determining the fair value of the reporting units and the fair value of indefinite-lived intangible assets. Reporting unit fair value estimates include significant assumptions such as: revenue growth rates, operating margins, company-specific risk premiums used in the weighted-average cost of capital, and EBITDA multiples, which are affected by expectations about future market or economic conditions. The fair value estimates for indefinite-lived intangible assets include significant assumptions such as revenue growth rates and estimated royalty rates, which are affected by the market for comparable intellectual property licensing arrangements and expectations about future market or economic conditions. The Company performs sensitivity analysis on significant assumptions to evaluate how changes in the estimated fair values of reporting units and indefinite-lived intangible assets respond to changes in assumptions, specifically the revenue growth rates and the weighted-average cost of capital.


As a result of our quantitative testing, none of the reporting units with goodwill as of our testing date had carrying values in excess of their fair values, and onenor were any of the reporting unit with $31.7 million in goodwill within the Industrial and Infrastructure Products segment was "at risk"units "at-risk" of impairment. The Company quantitatively defines "at risk" as a percentage of the excess of the reporting unit's fair value over its carrying amount that is less than 10%. An "at risk" reporting unit qualitatively represents a reporting unit with a higher degree of uncertainty of the reporting unit's ability to meet its forecasted cash flows based upon revenue growth rate and operating margin assumptions relied upon in the estimation of its fair value. This "at risk" reporting unit had a percentage of approximately 8% excess of its fair value over its carrying amount and had not met its revenue growth rate and operating margin projections used in the prior year annual goodwill impairment testing. The decline in the reporting unit's revenues during prior year periods was consistent with overall trends in the industrial and infrastructure market over those same periods. The forecasted revenues for this reporting unit were developed to correlate with recent growth expectations in the market supported by published market data and indicators. To the extent that the reporting unit does not achieve the targeted growth or the market activity adversely deviates from expectations, the reporting unit's goodwill may be at risk for impairment or impaired.

There were no impairment charges against goodwill recorded during the years ended December 31, 20182020, 2019, and 2017. In 2016, the Company discontinued its European residential solar racking business which resulted in an impairment charge against goodwill of $0.9 million.2018.

The fair value of each reporting unit is determined using a weighted average of the fair values calculated under two valuation techniques: an income approach and a market approach.
The income approach included a discounted cash flow model relying on significant assumptions consisting of revenue growth rates and profit margins based on internal forecasts, terminal value, and the weighted average cost of capital ("WACC") used to discount future cash flows. Internal forecasts of revenue growth, operating margins, and working capital needs of each reporting unit over the next five years were developed with consideration of macroeconomic factors, historical performance, and planned activities. We made a terminal value assumption that cash flows would grow 3.0% each year subsequent to 2023 based on our approximation of gross domestic product growth. To determine the WACC, we used a standard valuation method, the capital asset pricing model, based on readily available and current market data of peer companies considered market participants. Acknowledging the varying degrees of risk inherent in each reporting units’ ability to achieve long-term forecasted cash flows in applying the income approach, we applied a reporting unit-specific risk premium to the WACC of each reporting unit, the extent of which was determined

based upon each reporting unit’s past operating performance and their relative ability to achieve the forecasted cash flows. The income approach is weighted at 67% when arriving at our concluded estimate of the fair value of each reporting unit, as this technique uses a long-term approach that considers the expected operating profit of each reporting unit during periods where macroeconomic indicators are nearer historical averages. This weighting approach is consistent with prior years.

The market approach consisted of applying the Earnings Before Interest, Taxes, Depreciation and Amortization ("EBITDA") multiple to the forecasted EBITDA to be generated in the next two years in determining an estimated fair value for the reporting unit. The market approach also relied on the same significant assumptions used in the discounted cash flow model, consisting of revenue growth rates and profit margins based on internal forecasts and the EBITDA multiple selected from an analysis of peer companies. Similar to the WACC analysis, we assessed the risk of each reporting unit achieving its forecasts with consideration given to how each reporting unit has performed historically compared to forecasts. We also evaluated each reporting units' expected growth and historical performance relative to that of the peer companies and made adjustments to the multiples where the growth rates and historical performance deviated from the peer companies. The market approach is weighted at 33% when arriving at our concluded estimate of the fair value of each reporting unit. This weighting approach is consistent with prior years.
Indefinite-Lived Intangibles

We test our indefinite-lived intangible assets for impairment by comparing the fair value of the indefinite-lived intangible asset, determined using a discounted cash flow model, with its carrying amount. Each reporting period, we perform an evaluation of the remaining useful life of our indefinite-lived intangible assets to determine whether events and circumstances continue to support an indefinite useful life. If an indefinite-lived intangible asset is subsequently determined to have a finite useful life, the asset is tested for impairment and then amortized prospectively over its estimated remaining useful life, and accounted for in the same manner as other intangible assets that are subject to amortization.

The assumptions used to determine the fair value of our indefinite-lived intangible assets are consistent with the assumptions employed in the determination of the fair values of our reporting units. An impairment loss would be recognized for the carrying amount in excess of its fair value. The fair values of the impaired trademarks were determined using an income approach consisting of the relief-from-royalty method. The Company did not recognize any impairment charges on our indefinite-lived intangible assets in 2020 and 2019. During 2018, and 2017, the Company recognized $1.2 million and $0.2 million, respectively, of impairment charges on our indefinite-lived intangible assets. In 2016,


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Accounting for Acquired Assets and Liabilities

When we acquire a business, we allocate the Company incurred $7.8 millionpurchase price to the assets acquired and liabilities assumed in the transaction at their respective estimated fair values. We record any premium over the fair value of net assets acquired as goodwill. Significant judgment is necessary to determine the fair value of the purchase price. The allocation of the purchase price involves judgments and estimates both in characterizing the assets and in determining their fair value. The way we characterize the assets has important implications, as long-lived assets with definitive lives, for example, are depreciated or amortized, whereas goodwill is tested annually for impairment, chargesas explained above.

With respect to determining the fair value of assets, the most subjective estimates involve valuations of long-lived assets, such as identified intangible assets and property, plant, and equipment. We use all available information to make these fair value determinations and engage independent valuation specialists to assist in the fair value determination of the acquired long-lived assets. The fair values of long-lived assets are determined using valuation techniques that use discounted cash flow methods, independent market appraisals, and other acceptable valuation techniques. The significant assumptions used to estimate the value of the intangible assets included discount rates, customer attrition, and certain assumptions that form the basis of the forecasted results (e.g., revenue growth rates and operating profit margin). The significant assumptions related to estimating the Company's discontinued European residential solar racking business and U.S. bar grating product line, and an additional $1.2 million of impairment charges were recognized in 2016 as a resultfair value of the Company's annual impairment test.intangible assets above are forward looking and could be affected by future economic market conditions.

Recent Accounting Pronouncements

See Note 1 to the Company's consolidated financial statements in Part II, Item 8, Financial Statements and Supplementary Data, of this Form 10-K for further information on recent accounting pronouncements.pronouncements in accordance with U.S. generally accepted accounting principles.

Other Topics Adopted

The U.S. Securities and Exchange Commission (“SEC”) issued a final rule in May 2020 that amends the financial statement requirements for acquisitions and dispositions of businesses. The amendments primarily relate to disclosures required by Rule 3-05 and Article 11 of Regulation S-X and modifies the tests provided in Rule 1-02(w) of Regulation S-X used to determine whether a subsidiary or an acquired or disposed business is significant and modifies the number of years of audited financial statements required for acquisitions with significance levels greater than specified percentages. The amendments are effective for annual periods beginning after January 1, 2021 with early adoption permitted. We have elected to early adopt these amendments during the fourth quarter of 2020.

In August 2020, the SEC issued a final rule about the Modernization of Regulation S-K Items 101, 103 and 105, which became effective on November 9, 2020. The rule is intended to streamline disclosures about the business, legal proceeding and risk factors, and it adds new disclosure requirements about human capital resource.

In November 2020, the SEC issued a final rule about Management's Discussion and Analysis, Selected Financial Data, and Supplementary Financial Information, which became effective on February 10, 2021. The rule is intended to eliminate duplicate disclosures and to improve and simplify the disclosures within Management's Discussion and Analysis Items 301, 302 and 303. Early adoption is permitted on an Item-by-Item basis, provided that the Company complies fully with all areas of that Item. We have elected to early adopt the amendments of Item 301 for this Form 10-K for the year ended December 31, 2020 and expect adoption of Items 302 and 303 in our Form 10-K for the year ended December 31, 2021.
Item 7A.Quantitative and Qualitative Disclosures about Market Risk
In the ordinary course of business, the Company is exposed to various market risk factors, including changes in general economic conditions, competition, and raw materials pricing and availability. In addition, the Company is exposed to other financial market risks, primarily related to its long-term debt and foreign operations.
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Raw Material Pricing Risk
We are subject to market risk exposure related to volatility in the price of steel, aluminum and resins. A significant amount of our cost of sales relates to material costs. Our business is heavily dependent on the price and supply of our raw materials. The commodity market, which includes the steel, aluminum, and resin industries, is highly cyclical in nature, and commodity costs have been volatile in recent years, and may become more volatile in the future. Commodity costs are influenced by numerous factors beyond our control, including general economic conditions, the availability of raw materials, competition, labor costs, freight and transportation costs, production costs, import duties and other trade restrictions.



The Company principally manages its exposures to the market fluctuations in the steel and resins industries through management of its core business activities. Although we have the ability to purchase steel from a number of suppliers, a production cutback by one or more of our current suppliers could create challenges in meeting delivery schedules to our customers. The prices we offer to our customers are also impacted by changes in commodity costs. We manage the alignment of the cost of our raw materials and prices offered to customers and attempt to pass changes to raw material costs through to our customers. To improve our management of commodity costs, we attempt to maintain inventory levels not in excess of our production requirements.


We have not entered into long-term contractual commitments for the purchase of raw materials however, from time to time, we may purchase raw materials in advance of commodity cost increases.


We rely on major suppliers for our supply of raw materials. During 2018,2020, we purchased our raw materials from domestic and foreign suppliers in an effort to purchase the lowest cost, high quality material possible while maintaining acceptable service levels.


We cannot accurately calculate the pre-tax impact a one percent change in the commodity costs would have on our 20182020 operating results as the change in commodity costs would both impact the cost to purchase materials and the selling prices we offer our customers. The impact to our operating results would significantly depend on the competitive environment and the costs of other alternative building products, which could impact our ability to pass commodity costs to our customers.


Interest Rate Risk
To manage interest rate risk, the Company uses both fixedvariable and variablefixed interest rate debt. As of December 31, 2018,2020, our fixedvariable rate debt consistedconsists of the Company’s Senior Subordinated 6.25% Notesborrowings under our revolving credit facility of $85.0 million and was the only significant debt that remains outstanding at year end. We believe we limited our exposureIn order to manage interest rate risk, as a result of repaying substantially all variable rate debt and the long-term nature of our fixed rate debt. However, the Company will continue to monitor changes in its debt levels and access to capital ensuring interest rate risk is appropriately managed.
At December 31, 2018,2020, our fixed rate debt consisted primarily of $210.0 million of our 6.25% Notes. The Company’s $210.0 million of 6.25% Notes were issued in January 2013 with a maturity date of February 1, 2021, which have been paid in full by Company on February 1, 2019.
As of December 31, 2018, ouravailable variable rate debt consisted primarily of the revolving credit facility under the then existing SeniorCompany's Sixth Amended and Restated Credit Agreement, of which $85 million was amended and restated on January 24, 2019, and other debt. No amounts were outstanding on the revolving credit facility as of December 31, 2018.2020. Borrowings under the revolving credit facility bore interest at a variable interest rate based upon the LIBOR plus an additional margin. A hypothetical 1% increase or decrease in interest rates would have changed the 20182020 interest expense by less than $0.1$0.2 million.
Foreign Exchange Risk
The Company has foreign exchange risk due to our international operations, primarily in Canada and Asia, and through sales to and purchases from foreign customers and vendors. Changes in the values of currencies of foreign countries affect our financial position and cash flows when translated into U.S. dollars. The Company principally manages its exposures to many of these foreign exchange rate risks solely through management of its core business activities. We cannot accurately calculate the pre-tax impact that a one percent change in the exchange rates of foreign currencies would have on our 20182020 operating results as the changes in exchange rates would impact the cost of materials, the U.S. dollar revenue equivalents, and potentially the prices offered to our overseas customers.



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Item 8.Financial Statements and Supplementary Data
Item 8.Page 
Number
Financial Statements and Supplementary DataStatements:
Page 
Number
Financial Statements:
Supplementary Data:



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Report of Independent Registered Public Accounting Firm


To the Shareholders and Board of Directors of Gibraltar Industries, Inc.


Opinion on the Financial Statements


We have audited the accompanying consolidated balance sheets of Gibraltar Industries, Inc. (the Company)as of December 31, 20182020 and 2017,2019, the related consolidated statements of operations, comprehensive income (loss), shareholders’shareholders' equity and cash flows for each of the three years in the period ended December 31, 2018,2020, and the related notes (collectively referred to as the “consolidated financial statements”). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company at December 31, 20182020 and 2017,2019, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 2018,2020, in conformity with USU.S. generally accepted accounting principles.


We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the Company’sCompany's internal control over financial reporting as of December 31, 2018,2020, based on criteria established in Internal Control-IntegratedControl–Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (2013 framework), and our report dated February 26, 201925, 2021 expressed an unqualified opinion thereon.


Adoption of ASU No. 2014-09New Accounting Standards


As discussed in Note 1 to the consolidated financial statements, the Company changed its method for recognizing revenueaccounting for leases as a result of the adoption of Accounting Standards Update (ASU) No. 2014-09, Revenue from Contracts with Customers2016-02, Leases (Topic 606)842), and the amendments in ASUs 2015-14, 2016-08, 2016-10 and 2016-12ASU 2018-11, effective January 1, 2018.2019. As discussed in Note 1 to the consolidated financial statements, the Company changed its method for calculating expected credit losses as a result of the adoption of ASU No. 2016-13, Financial Instruments – Credit Losses (Topic 326), effective January 1, 2020.


Basis for Opinion


These financial statements are the responsibility of the Company‘sCompany's management. Our responsibility is to express an opinion on the Company’s financial statements based on our audits. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.


We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. Our audits included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements. We believe that our audits provide a reasonable basis for our opinion.


Critical Audit Matters

The critical audit matters communicated below are matters arising from the current period audit of the financial statements that were communicated or required to be communicated to the audit committee and that: (1) relate to accounts or disclosures that are material to the financial statements and (2) involved our especially challenging, subjective or complex judgments. The communication of critical audit matters does not alter in any way our opinion on the consolidated financial statements, taken as a whole, and we are not, by communicating the critical audit matters below, providing separate opinions on the critical audit matters or on the accounts or disclosures to which they relate.
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Revenue Recognition on Contracts
Description of the Matter
During the year ended December 31, 2020, the amount of revenue recognized over time was $415.8 million. As discussed in Note 1 to the consolidated financial statements, the Company’s revenue on contracts is accounted for based on the cost-to-cost input measure of progress, whereby the extent of progress toward completion is measured based on the ratio of costs incurred to date to the total estimated costs at completion of the performance obligation.

Auditing management’s estimates to complete for certain components is especially subjective due to significant judgment required in estimating the remaining costs to complete. Factors inherent in the estimation process include direct labor hours, direct material costs, and other direct costs. Due to uncertainties attributed to such factors, a significant change in an estimate on one or more contracts could have a material effect on the Company’s results of operations.

How We Addressed the Matter in Our Audit
We obtained an understanding, evaluated the design and tested the operating effectiveness of controls that address the risks of material misstatement relating to the measurement and valuation of the Company’s review of estimated costs to complete, including the determination of the underlying significant assumptions and the completeness and accuracy of the open contracts reviewed. For example, we tested controls over management’s quarterly review of the cost estimates, monthly review of open contracts and completed contracts, and review over the cost estimates used to develop initial cost estimates on projects.

To test the amount of revenue recognized from contracts, our audit procedures included, among others, assessing whether the performance obligations identified were appropriately recognized on an over time basis through inspection of the contract and inquiry from program management regarding the nature and scope of work and testing the completeness and accuracy of the data underlying the determination of the amount of revenue recognized in the current period. To assess the over time revenue recognition, we tested that the actual costs incurred on the project are complete and accurate through agreement to supporting evidence. Our testing of the assumptions included a combination of confirmation of contract terms, billings, and project status directly with customers, inquiries of the program management and financial personnel, inspection of evidence to support future estimated costs,performance of an analysis of actual gross margin on completed contracts compared to prior estimates, evaluation of subsequent year-end expenses incurred on projects, and assessment of the historical accuracy of management’s estimates by analyzing changes in project gross margins during project lifecycles and determining if those changes were driven by cost factors that should have been known or could have been reasonably estimated at project inception.

Valuation of Goodwill
Description of the Matter
At December 31, 2020, the Company’s goodwill was $536.8 million. As discussed in Notes 1 and 7 of the consolidated financial statements, the Company tests goodwill for impairment at the reporting unit level on an annual basis or more frequently if an event occurs or circumstances change that would more likely than not reduce the fair value of a reporting unit below its carrying amount. The Company may elect to perform a qualitative assessment or a quantitative test for impairment. In its quantitative tests the Company used the discounted cash flow method to estimate the fair value of its reporting units. The discounted cash flow method incorporates various assumptions, the most significant being projected revenue growth rates and the weighted-average cost of capital. If the carrying value of the reporting unit exceeds its fair value, goodwill impairment is measured as the amount by which the reporting unit’s carrying value exceeds its fair value, not to exceed the carrying value of goodwill.

Auditing management’s annual goodwill impairment test was especially subjective due to the significant estimation required to determine the fair value of certain reporting units tested using the quantitative assessment. The fair value estimates for certain reporting units were sensitive to significant assumptions inherent in the Company’s discounted estimated future cash flows, such as changes in the weighted average cost of capital, revenue growth rate, operating margin, working capital and terminal value, which are affected by expectations about future market or economic conditions.

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How We Addressed the Matter in Our Audit
We obtained an understanding, evaluated the design and tested the operating effectiveness of controls over the Company’s goodwill impairment review process, including controls over management’s review of the significant assumptions described above.

To test the estimated fair value of the Company’s reporting units that applied a quantitative assessment, we performed audit procedures with the assistance of our valuation professionals that included, among others, assessing the methodology used and testing the significant assumptions discussed above and the underlying data used in the impairment analysis. We compared the significant assumptions used by management to current industry and economic trends and evaluated whether changes to the Company’s business model, customer base or product mix and other factors would affect the significant assumptions. We assessed the historical accuracy of management’s estimates and performed sensitivity analyses of significant assumptions to evaluate the changes in the aggregate fair value of the reporting units that would result from changes in the assumptions. We considered the relationship between the fair value of the Company’s reporting units to the market capitalization of the Company as of the annual impairment testing date.

Accounting for Acquisitions
Description of the Matter
As discussed in Note 6 of the consolidated financial statements, during 2020, the Company completed five acquisitions in separate transactions, for which the aggregate consideration was $313.3 million. All five transactions were accounted for as business combinations.

Auditing the Company’s accounting for its acquisitions was complex due to the significant estimation uncertainty in the Company’s preliminary determination of the fair values of the acquired intangible assets aggregating $90.0 million. The Company used discounted cash flow methods and independent market appraisals to estimate the preliminary fair value of acquired intangible assets. The significant assumptions used to estimate the value of the intangible assets included discount rates, customer attrition, and certain assumptions that form the basis of the forecasted results (e.g., revenue growth rates and operating profit margin). The significant assumptions related to estimating the fair value of the intangible assets above are forward looking and could be affected by future economic market conditions.
How We Addressed the Matter in Our Audit
We obtained an understanding, evaluated the design and tested the operating effectiveness of controls over the Company’s accounting for acquisitions. For example, we tested controls over the recognition and measurement of consideration transferred and acquired intangible assets, including the valuation models and underlying assumptions used to develop such estimates.

To test the fair value of the estimated preliminary fair value of the acquired intangible assets, we performed audit procedures that included, among others, evaluating the Company's selection of the valuation methodology, evaluating the methods and significant assumptions used by the Company’s valuation specialists and evaluating the completeness and accuracy of the underlying data. For example, we compared the significant assumptions to current industry, market and economic trends, to the assumptions used to value similar assets in other acquisitions, to the historical results of the acquired business and to other guidelines used by companies within the same industry. We involved our valuation specialists to assist in our evaluation of the methodology used by the Company and significant assumptions and to assist with reconciling the prospective financial information with other prospective financial information prepared by the Company.


/s/ Ernst & Young LLP


We have served as the Company‘s auditor since 2005.
Buffalo, New York
Boston, Massachusetts
February 26, 201925, 2021



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GIBRALTAR INDUSTRIES, INC.
CONSOLIDATED STATEMENTS OF OPERATIONS
(in thousands, except per share data)
 
 Years Ended December 31,
 202020192018
Net sales$1,032,578 $898,233 $837,097 
Cost of sales776,235 678,336 626,171 
Gross profit256,343 219,897 210,926 
Selling, general, and administrative expense149,153 139,085 128,233 
Intangible asset impairment1,552 
Income from operations107,190 80,812 81,141 
Interest expense, net703 2,323 10,709 
Other (income) expense(1,272)408 3,309 
Income before taxes107,759 78,081 67,123 
Provision for income taxes24,468 18,153 13,011 
Income from continuing operations83,291 59,928 54,112 
Discontinued operations:
(Loss) income before taxes(16,602)6,682 12,822 
Provision for income taxes2,123 1,519 3,125 
(Loss) income from discontinued operations(18,725)5,163 9,697 
Net income$64,566 $65,091 $63,809 
Net earnings per share – Basic:
Income from continuing operations$2.55 $1.85 $1.69 
(Loss) income from discontinued operations(0.57)0.16 0.31 
Net income$1.98 $2.01 $2.00 
Weighted average shares outstanding – Basic32,664 32,389 31,979 
Net earnings per share – Diluted:
Income from continuing operations$2.53 $1.83 $1.66 
(Loss) income from discontinued operations(0.57)0.16 0.30 
Net income$1.96 $1.99 $1.96 
Weighted average shares outstanding – Diluted32,918 32,722 32,534 







See accompanying notes to consolidated financial statements.
39
 Years Ended December 31,
 2018 2017 2016
Net sales$1,002,372
 $986,918
 $1,007,981
Cost of sales760,012
 750,374
 763,219
Gross profit242,360
 236,544
 244,762
Selling, general, and administrative expense146,840
 143,448
 161,099
Intangible asset impairment1,552
 247
 10,175
Income from operations93,968
 92,849
 73,488
Interest expense, net12,064
 14,032
 14,577
Other expense1,959
 909
 8,928
Income before taxes79,945
 77,908
 49,983
Provision for income taxes16,136
 14,943
 16,264
Income from continuing operations63,809
 62,965
 33,719
Discontinued operations:     
Loss before taxes
 (644) (70)
Benefit of income taxes
 (239) (26)
Loss from discontinued operations
 (405) (44)
Net income$63,809
 $62,560
 $33,675
Net earnings per share – Basic:     
Income from continuing operations$2.00
 $1.98
 $1.07
Loss from discontinued operations
 (0.01) 
Net income$2.00
 $1.97
 $1.07
Weighted average shares outstanding – Basic31,979
 31,701
 31,536
Net earnings per share – Diluted:     
Income from continuing operations$1.96
 $1.95
 $1.05
Loss from discontinued operations
 (0.01) 
Net income$1.96
 $1.94
 $1.05
Weighted average shares outstanding – Diluted32,534
 32,250
 32,069


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GIBRALTAR INDUSTRIES, INC.
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)
(in thousands)
 
 Years Ended December 31,
 202020192018
Net income$64,566 $65,091 $63,809 
Other comprehensive income (loss):
Foreign currency translation adjustment3,301 1,766 (3,241)
Cumulative effect of accounting change(350)
Adjustment to pension and post-retirement benefit liability, net of tax(371)77 723 
Other comprehensive income (loss)2,930 1,843 (2,868)
Total comprehensive income$67,496 $66,934 $60,941 






































See accompanying notes to consolidated financial statements.
40
 Years Ended December 31,
 2018 2017 2016
Net income$63,809
 $62,560
 $33,675
Other comprehensive (loss) income:     
Foreign currency translation adjustment(3,241) 3,150
 6,945
Cumulative effect of accounting change (see Note 1)(350) 
 
Adjustment to pension and post-retirement benefit liability, net of tax723
 205
 750
Other comprehensive (loss) income(2,868) 3,355
 7,695
Total comprehensive income$60,941
 $65,915
 $41,370


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GIBRALTAR INDUSTRIES, INC.
CONSOLIDATED BALANCE SHEETS
(in thousands)
 
December 31, 2020December 31, 2019
Assets
Current assets:
Cash and cash equivalents$32,054 $191,363 
Accounts receivable, net of allowance of $3,529 and $5,951197,990 133,895 
Inventories, net98,307 61,957 
Prepaid expenses and other current assets19,671 18,959 
Assets of discontinued operations77,438 30,928 
Total current assets425,460 437,102 
Property, plant, and equipment, net89,562 78,152 
Operating lease assets25,229 21,201 
Goodwill514,279 307,355 
Acquired intangibles156,365 76,734 
Other assets1,599 1,980 
Assets of discontinued operations61,926 
$1,212,494 $984,450 
Liabilities and Shareholders’ Equity
Current liabilities:
Accounts payable$134,738 $72,628 
Accrued expenses83,505 86,597 
Billings in excess of cost34,702 47,598 
Liabilities of discontinued operations49,295 22,374 
Total current liabilities302,240 229,197 
Long-term debt85,636 
Deferred income taxes39,057 35,404 
Non-current operating lease liabilities17,730 14,943 
Other non-current liabilities24,026 21,272 
Liabilities of discontinued operations9,670 
Shareholders’ equity:
Preferred stock, $0.01 par value; authorized 10,000 shares; NaN outstanding
Common stock, $0.01 par value; authorized 50,000 shares; 33,568 and 33,192 shares issued in 2020 and 2019336 332 
Additional paid-in capital304,870 295,582 
Retained earnings469,943 405,668 
Accumulated other comprehensive loss(2,461)(5,391)
Cost of 1,028 and 906 common shares held in treasury in 2020 and 2019(28,883)(22,227)
Total shareholders’ equity743,805 673,964 
$1,212,494 $984,450 


See accompanying notes to consolidated financial statements.
41
 December 31, 2018 December 31, 2017
Assets   
Current assets:   
Cash and cash equivalents$297,006
 $222,280
Accounts receivable, net140,283
 145,385
Inventories98,913
 86,372
Other current assets8,351
 8,727
Total current assets544,553
 462,764
Property, plant, and equipment, net95,830
 97,098
Goodwill323,671
 321,074
Acquired intangibles96,375
 105,768
Other assets1,216
 4,681
 $1,061,645
 $991,385
Liabilities and Shareholders’ Equity   
Current liabilities:   
Accounts payable$79,136
 $82,387
Accrued expenses87,074
 75,467
Billings in excess of cost17,857
 12,779
Current maturities of long-term debt208,805
 400
Total current liabilities392,872
 171,033
Long-term debt1,600
 209,621
Deferred income taxes36,530
 31,237
Other non-current liabilities33,950
 47,775
Shareholders’ equity:   
Preferred stock, $0.01 par value; authorized 10,000 shares; none outstanding
 
Common stock, $0.01 par value; authorized 50,000 shares; 32,887 and 32,332 shares outstanding in 2018 and 2017329
 323
Additional paid-in capital282,525
 271,957
Retained earnings338,995
 274,562
Accumulated other comprehensive loss(7,234) (4,366)
Cost of 796 and 615 common shares held in treasury in 2018 and 2017(17,922) (10,757)
Total shareholders’ equity596,693
 531,719
 $1,061,645
 $991,385


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GIBRALTAR INDUSTRIES, INC.
CONSOLIDATED STATEMENTS OF CASH FLOWS
(in thousands)
 Years Ended December 31,
 202020192018
Cash Flows from Operating Activities
Net income$64,566 $65,091 $63,809 
(Loss) income from discontinued operations(18,725)5,163 9,697 
Income from continuing operations83,291 59,928 54,112 
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization20,915 17,557 17,439 
Intangible asset impairment1,552 
Gain on sale of business(1,881)
Stock compensation expense8,173 12,570 9,189 
Exit activity costs, non-cash493 408 1,344 
Provision for deferred income taxes3,786 4,120 4,725 
Other, net1,944 5,399 1,759 
Changes in operating assets and liabilities (excluding the effects of acquisitions):
Accounts receivable2,277 (11,256)9,665 
Inventories(5,719)14,272 (12,322)
Other current assets and other assets5,467 (9,306)38 
Accounts payable(1,160)4,804 (5,491)
Accrued expenses and other non-current liabilities(44,570)14,040 2,351 
Net cash provided by operating activities of continuing operations73,016 112,536 84,361 
Net cash provided by operating activities of discontinued operations16,088 17,399 13,184 
Net cash provided by operating activities89,104 129,935 97,545 
Cash Flows from Investing Activities
Purchases of property, plant, and equipment(13,068)(8,776)(10,368)
Acquisitions, net of cash acquired(313,686)(8,595)(5,241)
Net proceeds from sale of property and equipment77 92 348 
Net proceeds from sale of business2,000 
Net cash used in investing activities of continuing operations(324,677)(17,279)(15,261)
Net cash (used in) provided by investing activities of discontinued operations(2,033)(2,394)712 
Net cash used in investing activities(326,710)(19,673)(14,549)
Cash Flows from Financing Activities
Long-term debt payments(212,000)(400)
Proceeds from long-term debt85,000 
Payment of debt issuance costs(1,235)
Purchase of treasury stock at market prices(6,656)(4,305)(7,165)
Net proceeds from issuance of common stock1,119 490 1,385 
Net cash provided by (used in) financing activities79,463 (217,050)(6,180)
Effect of exchange rate changes on cash(1,166)1,145 (2,090)
Net (decrease) increase in cash and cash equivalents(159,309)(105,643)74,726 
Cash and cash equivalents at beginning of year191,363 297,006 222,280 
Cash and cash equivalents at end of year$32,054 $191,363 $297,006 
See accompanying notes to consolidated financial statements.
42
 Years Ended December 31,
 2018 2017 2016
Cash Flows from Operating Activities     
Net income$63,809
 $62,560
 $33,675
Loss from discontinued operations
 (405) (44)
Income from continuing operations63,809
 62,965
 33,719
Adjustments to reconcile net income to net cash provided by operating activities:     
Depreciation and amortization20,374
 21,690
 24,114
Intangible asset impairment1,552
 247
 10,175
Loss on sale of business
 
 8,763
Stock compensation expense9,189
 7,122
 6,373
Net gain on sale of assets(143) (123) (42)
Exit activity costs (recoveries), non-cash1,344
 (1,877) 7,530
Provision for (benefit of) deferred income taxes4,781
 (7,105) (4,893)
Other, net1,386
 2,118
 1,934
Changes in operating assets and liabilities (excluding the effects of acquisitions):     
Accounts receivable9,737
 (21,806) 37,828
Inventories(16,951) 870
 11,782
Other current assets and other assets(22) (2,629) 2,511
Accounts payable(4,828) 11,332
 (17,060)
Accrued expenses and other non-current liabilities7,317
 (2,734) 1,253
Net cash provided by operating activities97,545
 70,070
 123,987
Cash Flows from Investing Activities     
Purchases of property, plant, and equipment(12,457) (11,399) (10,779)
Acquisitions, net of cash acquired(5,241) (18,494) (23,412)
Net proceeds from sale of property and equipment3,149
 13,096
 953
Net proceeds from sale of business
 
 8,250
Other, net
 
 1,118
Net cash used in investing activities(14,549) (16,797) (23,870)
Cash Flows from Financing Activities     
Long-term debt payments(400) (400) (400)
Payment of debt issuance costs
 
 (54)
Purchase of treasury stock at market prices(7,165) (2,872) (1,539)
Net proceeds from issuance of common stock1,385
 674
 3,341
Net cash (used in) provided by financing activities(6,180) (2,598) 1,348
Effect of exchange rate changes on cash(2,090) 1,428
 (146)
Net increase in cash and cash equivalents74,726
 52,103
 101,319
Cash and cash equivalents at beginning of year222,280
 170,177
 68,858
Cash and cash equivalents at end of year$297,006
 $222,280
 $170,177

GIBRALTAR INDUSTRIES, INC.
CONSOLIDATED STATEMENTS OF SHAREHOLDERS’ EQUITY
(in thousands)
 Common StockAdditional
Paid-In Capital
Retained EarningsAccumulated
Other
Comprehensive Loss
Treasury StockTotal
Shareholders’ Equity
 SharesAmountSharesAmount
Balance at December 31, 201732,332 $323 $271,957 $274,562 $(4,366)615 $(10,757)$531,719 
Net income— — — 63,809 — — — 63,809 
Foreign currency translation adjustment— — — — (3,241)— — (3,241)
Minimum pension and post retirement benefit plan adjustments, net of taxes of $225— — — — 723 — — 723 
Stock compensation expense— — 9,189 — — — — 9,189 
Cumulative effect of accounting change— — — 624 (350)— — 274 
Net settlement of restricted stock units460 (5)— — 181 (7,165)(7,165)
Issuance of restricted stock— — — — — — — 
Stock options exercised88 1,384 — — — — 1,385 
Balance at December 31, 201832,887 $329 $282,525 $338,995 $(7,234)796 $(17,922)$596,693 
Net income— — — 65,091 — — — 65,091 
Foreign currency translation adjustment— — — — 1,766 — — 1,766 
Minimum post retirement benefit plan adjustments, net of taxes of $24— — — — 77 — — 77 
Stock compensation expense— — 12,570 — — — — 12,570 
Cumulative effect of accounting change
— — — 1,582 — — — 1,582 
Net settlement of restricted stock units255 (3)— — 110 (4,305)(4,305)
Issuance of restricted stock— — — — — — — 
Stock options exercised42 — 490 — — — — 490 
Balance at December 31, 201933,192 $332 $295,582 $405,668 $(5,391)906 $(22,227)$673,964 
Net income— — — 64,566 — — — 64,566 
Foreign currency translation adjustment— — — — 3,301 — — 3,301 
Minimum post retirement benefit plan adjustments, net of taxes of $116— — — — (371)— — (371)
Stock compensation expense— — 8,173 — — — — 8,173 
Cumulative effect of accounting change (see Note 1)
— — — (291)— — — (291)
Net settlement of restricted stock units296 (4)— — 122 (6,656)(6,656)
Issuance of restricted stock— — — — — — — 
Stock options exercised76 — 1,119 — — — — 1,119 
Balance at December 31, 202033,568 $336 $304,870 $469,943 $(2,461)1,028 $(28,883)$743,805 





See accompanying notes to consolidated financial statements.
43
 Common Stock 
Additional
Paid-In Capital
 Retained Earnings 
Accumulated
Other
Comprehensive Loss
 Treasury Stock 
Total
Shareholders’ Equity
 Shares Amount    Shares Amount 
Balance at December 31, 201531,779
 $317
 $253,458
 $178,073
 $(15,416) 484
 $(6,346) $410,086
Net income
 
 
 33,675
 
 
 
 33,675
Foreign currency translation adjustment
 
 
 
 6,945
 
 
 6,945
Minimum pension and post retirement benefit plan adjustments, net of taxes of $430
 
 
 
 750
 
 
 750
Stock compensation expense
 
 6,373
 
 
 
 
 6,373
Excess tax benefit from stock compensation
 
 1,249
 
 
 
 
 1,249
Net settlement of restricted stock units131
 1
 (1) 
 
 46
 (1,539) (1,539)
Stock options exercised175
 2
 3,339
 
 
 
 
 3,341
Balance at December 31, 201632,085
 $320
 $264,418
 $211,748
 $(7,721) 530
 $(7,885) $460,880
Net income
 
 
 62,560
 
 
 
 62,560
Foreign currency translation adjustment
 
 
 
 3,150
 
 
 3,150
Minimum pension and post retirement benefit plan adjustments, net of taxes of $110
 
 
 
 205
 
 
 205
Stock compensation expense
 
 7,122
 
 
 
 
 7,122
Cumulative effect of accounting change (see Note 1)
 
 (254) 254
 
 
 
 
Net settlement of restricted stock units203
 3
 (3) 
 
 85
 (2,872) (2,872)
Issuance of restricted stock2
 
 
 
 
 
 
 
Stock options exercised42
 
 674
 
 
 
 
 674
Balance at December 31, 201732,332
 $323
 $271,957
 $274,562
 $(4,366) 615
 $(10,757) $531,719
Net income
 
 
 63,809
 
 
 
 63,809
Foreign currency translation adjustment
 
 
 
 (3,241) 
 
 (3,241)
Minimum pension and post retirement benefit plan adjustments, net of taxes of $225
 
 
 
 723
 
 
 723
Stock compensation expense
 
 9,189
 
 
 
 
 9,189
Cumulative effect of accounting change (see Note 1)

 
 
 624
 (350) 
 
 274
Net settlement of restricted stock units460
 5
 (5) 
 
 181
 (7,165) (7,165)
Issuance of restricted stock7
 
 
 
 
 
 
 
Stock options exercised88
 1
 1,384
 
 
 
 
 1,385
Balance at December 31, 201832,887
 $329
 $282,525
 $338,995
 $(7,234) 796
 $(17,922) $596,693



GIBRALTAR INDUSTRIES, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS


(1) SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES


Principles of consolidation
The consolidated financial statements include the accounts of Gibraltar Industries, Inc. and subsidiaries (the "Company"). All intercompany accounts and transactions have been eliminated in consolidation.


Use of estimates
The preparation of the consolidated financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Actual results could differ from those estimates.


Revenue recognition
On January 1, 2018, the Company adopted Accounting Standards Update ("ASU") No. 2014-09 “Revenue from Contracts with Customers (Topic 606)” and all related Accounting Standards Updates. As further described in this Note under Recent Accounting Pronouncements Adopted, the core principle of the guidance is that an entity should recognize revenue to depict the transfer of control, promised goods or services, to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The Company’s policy for recognizing revenue by timing of transfer of control to the customer, at a point in time or over time, is discussed in more detail in Note 3 of the consolidated financial statements. Note 18 of these consolidated financial statements provide information related to the amount of revenue recognized as defined by timing of transfer of control to the customer along with the reportable segment detail.

Cash and cash equivalents
All highly liquid investments with a maturity of three months or less are considered cash equivalents.

Accounts receivable and allowance for doubtful accounts
Accounts receivable are composed of trade and contract receivables recorded at either the invoiced amount or costs in excess of billings, are expected to be collected within one year, and do not bear interest. The allowance for doubtful accounts is the Company’s best estimate of the probable amount of uncollectible accounts in the Company’s existing accounts receivable. The Company determines the allowance based on a number of factors, including historical experience, credit worthiness of customers, and current market and economic conditions. The Company reviews the allowance for doubtful accounts on a regular basis. Account balances are charged against the allowance after all means of collection have been exhausted and the potential for recovery is considered remote.

The following table summarizes activity recorded within the allowance for doubtful accounts balances for the years ended December 31 (in thousands):
 2018 2017 2016
Beginning balance$6,434
 $5,272
 $4,868
Bad debt expense1,150
 1,253
 2,519
Accounts written off and other adjustments(624) (91) (2,115)
Ending balance$6,960
 $6,434
 $5,272

Concentrations of credit risk on accounts receivable are limited to those from significant customers that are believed to be financially sound. As of December 31, 2018 and 2017, the Company's most significant customer is a home improvement retailer. The home improvement retailer purchases from the Residential Products and the Renewable Energy and Conservation segments. Accounts receivable as a percentage of consolidated accounts receivable from the home improvement retailer was 13.6% as of December 31, 2018 and 2017.

Net sales as a percentage of consolidated net sales to the home improvement retailer were 12%, 12% and 11% for the years ended December 31, 2018, 2017 and 2016, respectively, with the majority of those sales within the Company's Residential Products segment. Note 2 "Accounts Receivable" contains additional information on the Company's accounts receivable.

Inventories
Inventories are valued at the lower of cost, determined using the first-in, first-out method, or net realizable value. Shipping and handling costs are recognized as a component of cost of sales.

Property, plant, and equipment
Property, plant, and equipment are stated at cost and depreciated over their estimated useful lives using the straight-line method. Interest is capitalized in connection with construction of qualified assets. Expenditures that exceed an established dollar threshold and that extend the useful lives of assets are capitalized, while repair and maintenance costs are expensed as incurred. The estimated useful lives of land improvements, buildings, and building improvements are 15 to 40 years, while the estimated useful lives for machinery and equipment are 3 to 20 years.

The table below sets forth the depreciation expense recognized during the years ended December 31 (in thousands):
 2018 2017 2016
Depreciation expense$12,152
 $12,929
 $14,477

Acquisition related assets and liabilities
Accounting for the acquisition of a business as a purchase transaction requires an allocation of the purchase price to the assets acquired and the liabilities assumed in the transaction at their respective estimated fair values. The most complex estimations of individual fair values are those involving long-lived assets, such as property, plant, and equipment and intangible assets. The Company uses all available information to make these fair value determinations and, for major business acquisitions, engages independent valuation specialists to assist in the fair value determination of the acquired long-lived assets.

Goodwill and other intangible assets
The Company tests goodwill for impairment at the reporting unit level on an annual basis at October 31, or more frequently if an event occurs, or circumstances change, that indicate that the fair value of a reporting unit could be below its carrying value. The reporting units are at the component level, or one level below the operating segment level. Goodwill is assigned to each reporting unit as of the date the reporting unit is acquired and based upon the expected synergies of the acquisition.

The Company may elect to perform a qualitative assessment that considers economic, industry and company-specific factors for some or all of our selected reporting units. If, after completing the assessment, it is determined that it is more likely than not that the fair value of a reporting unit is less than its carrying value, the Company proceeds to a quantitative test. The Company may also elect to perform a quantitative test instead of a qualitative test for any or all of the Company's reporting units.

The quantitative impairment test consists of comparing the fair value of a reporting unit, determined using two valuation techniques, to its carrying value. If the carrying value of the reporting unit exceeds its fair value, goodwill is considered impaired, and a loss measured by the excess of the carrying value of the reporting unit over the fair value of the reporting unit must be recorded.

The Company also tests its indefinite-lived intangible assets for impairment on an annual basis as of October 31, or more frequently if an event occurs, or circumstances change, that indicate that the fair value of an indefinite-lived intangible asset could be below its carrying value. The impairment test consists of comparing the fair value of the indefinite-lived intangible asset, determined using discounted cash flows on a relief-from-royalty basis, with its carrying

amount. An impairment loss would be recognized for the carrying amount in excess of its fair value. Acquired identifiable intangible assets are recorded at cost. Identifiable intangible assets with finite useful lives are amortized over their estimated useful lives.

Impairment of long-lived assets
Long-lived assets, including acquired identifiable intangible assets with finite useful lives, are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of those assets may not be recoverable. In specific situations, when the Company has selected individual assets to be sold or scrapped, the Company obtains market value data for those specific assets and measures and records the impairment loss based on such data. Otherwise, the Company uses undiscounted cash flows to determine whether impairment exists and measures any impairment loss by approximating fair value using acceptable valuation techniques, including discounted cash flow models and third-party appraisals. The Company recognized impairment charges related to intangible assets during the years ended December 31, 2018, 2017 and 2016. Several of these impairment charges related to exit activities during the three year period ended December 31, 2018 as described in Note 14 of the consolidated financial statements.

Deferred charges
Deferred charges associated with initial costs incurred to enter into new debt arrangements are included as a component of long-term debt and are amortized as a part of interest expense over the terms of the associated debt agreements.

Advertising
The Company expenses advertising costs as incurred. For the years ended December 31, 2018, 2017 and 2016, advertising costs were $5.2 million, $4.9 million, and $5.1 million, respectively.

Research and Development
The Company expenses research and development costs as incurred. For the years ended December 31, 2018, 2017 and 2016, research and development costs were $1.7 million, $2.9 million, and $2.2 million, respectively.

Foreign currency transactions and translation
The assets and liabilities of the Company’s foreign subsidiaries are translated into U.S. dollars at the rate of exchange in effect at the balance sheet date. Income and expense items are translated at the average exchange rates prevailing during the period.

Income taxes
The provision for income taxes is determined using the asset and liability approach. Under this approach, deferred income taxes represent the expected future tax consequences of temporary differences between the carrying amounts and tax basis of assets and liabilities. The Company records a valuation allowance to reduce deferred tax assets when uncertainty exists regarding their realization. On December 22, 2017, the President of the United States signed into law the Tax Cuts and Jobs Act (the “Tax Reform Act”). Further information on the impact of the Tax Reform Act is included in Note 15 of the consolidated financial statements.

Equity-based compensation
The Company measures the cost of equity-based compensation based on grant date fair value and recognizes the cost over the period in which the employee is required to provide service in exchange for the award reduced by forfeitures. Equity-based compensation consists of grants of stock options, deferred stock units, restricted stock, restricted stock units, and performance stock units. Equity-based compensation expense is included as a component of selling, general, and administrative expenses. The Company’s equity-based compensation plans are discussed in more detail in Note 12 of the consolidated financial statements.

Sale-Leaseback Transactions
During the first quarter of 2018, the Company entered into a transaction to sell one of its real estate properties to an independent third party for $3.0 million. The Company leased back the entire property under a four year operating lease agreement. In accordance with the U.S. generally accepted accounting principles, the Company accounted for the transaction as a sale-leaseback. The net present value of the Company's future minimum lease payments of $0.7 million were less than the gain on sale of $1.4 million. As such, the portion of the gain equal to the fair value of the future minimum lease payments was deferred and is being amortized on a straight-line basis over the four year term of the lease. The gain exceeding the fair value of the minimum lease payments amounted to $0.7 million and was recognized during 2018 as a component of selling, general, and administrative expenses. The minimum lease payment for each of the four years is $0.2 million.


These amounts have been included in the future minimum lease payments table in Note 17 of the consolidated financial statements.

Recent accounting pronouncements
Recent Accounting Pronouncements Adopted
StandardDescriptionFinancial Statement Effect or Other Significant Matters
ASU No. 2014-09
Revenue from Contracts with Customers (Topic 606) And All Related ASUs
The standard requires an entity to recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The standard also requires additional disclosures about the nature, amount, timing, and uncertainty of revenue and cash flows arising from customer contracts, including significant judgments and assets recognized from costs incurred to obtain or fulfill a contract. The provisions of the standard, as well as all subsequently issued clarifications to the standard, are effective for fiscal years beginning after December 15, 2017 and interim periods within those fiscal years. The standard can be adopted using either a full retrospective or modified retrospective approach.The Company has adopted this standard using the modified retrospective method. The Company recognized the cumulative- effect adjustment of initially applying this standard of $274,000 to the opening balance of retained earnings. The comparative 2017 and 2016 information has not been restated and continues to be reported under the accounting standard in effect for that period. Refer to Note 3 for further disclosure of the financial statement effect and other significant matters as a result of the adoption of this standard.




Date of adoption: Q1 2018
ASU No. 2016-15
Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments
The standard provides guidance on eight specific cash flow issues to reduce diversity in reporting. The provisions of this standard are effective for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. Early adoption is permitted.
The Company has adopted this standard and it did not have any impact on the Company's consolidated financial statements.


Date of adoption: Q1 2018
ASU No. 2016-16
Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other Than Inventory
The standard allows an entity to recognize income tax consequences of an intra-entity transfer of an asset other than inventory when the transfer occurs. The provisions of this standard are effective for annual reporting periods beginning after December 15, 2017, including interim reporting periods within those annual reporting periods. Early adoption is permitted as of the beginning of an annual reporting period for which financial statements (interim or annual) have not been issued or made available for issuance.
The Company has adopted this standard and it did not have any impact on the Company's consolidated financial statements.





Date of adoption: Q1 2018
ASU No. 2018-02 Income Statement-Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income
The standard allows a reclassification from accumulated other comprehensive income to retained earnings for stranded tax effects resulting from the Tax Cuts and Jobs Act. The provisions of this standard are effective for fiscal years beginning after December 15, 2018, and interim periods within those fiscal years. Early adoption of the standard is permitted, including adoption in any interim period.
The Company has early adopted this standard. As a result of adopting this standard, the Company recorded an adjustment of $350,000 from accumulated other comprehensive income to retained earnings in the consolidated statement of shareholders' equity as of January 1, 2018.

Date of adoption: Q1 2018

Recent Accounting Pronouncements Not Yet Adopted
StandardDescriptionFinancial Statement Effect or Other Significant Matters
ASU No. 2016-02
Leases (Topic 842)
The standard requires lessees to recognize most leases as assets and liabilities on the balance sheet, but record expenses on the statement of operations in a manner similar to current accounting. For lessors, the guidance modifies the classification criteria and accounting for sales-type and direct financing leases. The standard also requires additional disclosures about leasing arrangements and requires a modified retrospective transition approach for existing leases, whereby the standard will be applied to the earliest year presented. The provisions of the standard are effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. Early adoption is permitted.The standard is effective for the Company as of January 1, 2019. The Company will adopt the new leasing standard using the modified retrospective transition approach and will elect the transition method to initially apply the new leases standard to leases that exist at January 1, 2019 (i.e., adoption date). Under this transition method, the date of initial application, and the consolidated financial statements which the Company will first apply the new standard will be January 1, 2019, rather than the later of January 1, 2017 or the Company's underlying leases commencements dates. Further under this approach, the Company will continue reporting and presenting comparative periods in accordance with ASC 840, including disclosures. In addition, the Company will elect the package of practical expedients permitted under the transition guidance within the standard, which among other things, allows the Company to carry-forward the historical lease classification assessed under ASC 840. The Company will make an accounting policy election to keep leases with an initial term of 12 months or less off of the consolidated balance sheet. The Company will recognize operating lease costs in the consolidated statements of operations on a straight-line basis over the lease term. The Company estimates the adoption of the standard will result in recognition of operating lease assets and operating lease liabilities of approximately $29 million, respectively, as of January 1, 2019. The Company expects the standard will have no impact to the Company's lease expense presentation in the consolidated statement of operations nor the Company's liquidity. The standard will have no impact on the Company's debt covenant compliance under the Company's current agreements. Also, the Company has identified and will be implementing appropriate changes to the Company's business processes, systems and internal controls to support recognition and disclosure under this standard.

Planned date of adoption: Q1 2019
We consider the applicability and impact of all ASUs. ASUs not listed above were assessed and determined to be either not applicable, or had or are expected to have minimal impact on our financial statements and related disclosures.


(2) ACCOUNTS RECEIVABLE, NET

Accounts receivable at December 31 consisted of the following (in thousands):
 2018 2017
Trade accounts receivable$124,609
 $140,209
Costs in excess of billings22,634
 11,610
Total accounts receivables147,243
 151,819
Less allowance for doubtful accounts(6,960) (6,434)
Accounts receivable$140,283
 $145,385

Refer to Note 3 of the Company's consolidated financial statements included in this annual report on Form 10-K for additional information concerning the Company's costs in excess of billings.

(3)REVENUE

Sales includes revenue from contracts with customers from roof and foundation ventilation products; centralized mail systems and electronic package solutions; rain dispersion products and roofing accessories; expanded and perforated metal; perimeter security solutions; expansion joints and structural bearings; designing, engineering, manufacturing and installation of solar racking systems and greenhouse structures.

Revenue recognition

Revenue is recognized when, or as, the Company transfers control of promised products or service to a customer in an amount that reflects the consideration the Company expects to be entitled in exchange for transferring those products or service. Refer to Note 18 of this annual report on Form 10K for additional information related to revenue recognized by timing of transfer of control by reportable segment.

Payment terms and conditions vary by contract, although terms generally include a requirement of payment within a range from 30 to 60 days, or in certain cases, up front deposits. In circumstances where the timing of revenue recognition differs from the timing of invoicing, the Company has determined that the Company's contracts generally do not include a significant financing component. Taxes collected from customers, which are subsequently remitted to governmental authorities, are excluded from sales.


Performance obligations satisfied at a point in time and significant judgments


The majority of the Company's revenue from contracts with customers is recognized when the Company transfers control of the promised product at a point in time, which is determined when the customer has legal title and the significant risks and rewards of ownership of the asset, and the Company has a present right to payment for the product. These contracts with customers include promised products, which are generally capable of being distinct and accounted for as separate performance obligations. Accordingly, the Company allocates the transaction price, which is generally the quoted price per terms of the contract and the consideration the Company expects to receive, to each performance obligation in an amount based on an observable price of the products as the Company frequently sells these products separately in similar circumstances and to similar customers. These products are generally sold with rights of return and these contracts may provide other credits or incentives, which are accounted for as variable consideration. Variable consideration is estimated at the most likely amount to predict the consideration to which the Company will be entitled, and only to the extent it is probable that a subsequent change in estimate will not result in a significant revenue reversal when estimating the amount of revenue to recognize. Sales returns, allowances, and customer incentives, including rebates, are treated as reductions to the sales transaction price and based largely on an assessment of all information (i.e., historical, current and forecasted) that is reasonably available to the Company, and estimated at contract inception and updated at the end of each reporting period as additional information becomes available.


Performance obligations satisfied over time and significant judgments



For contracts with customers which the Company satisfies a promise to the customercontract to construct a certainan asset that the customer controls as it is being created or enhanced, or a promise to provide a product that has no alternative use to the Company and the Company has enforceable rights to payment, the Company satisfies the performance obligation and recognizes revenue over time. For the contracts to construct a certain asset, the Company determines that the customer controls the asset while it is being constructed. For the contracts for products that have no alternative use and for which the Company has an enforceable right to payment, the Company identifies these products as products that are not a standard inventory item or the Company cannot readily direct the product to another customer orfor use without incurring a significant economic loss, or significant costs to rework the product.


When the promised products and services are to construct a certain asset that the customer controls, the entire contract is accounted for as one performance obligation. The Company determines the transaction price for each contract based on the consideration the Company expects to receive for the promised products and services under the entire contract, which is generally the stated contract price based on an expected cost plus a margin.


When the promised products do not have an alternative use to the Company, and the Company has enforceable rights to payment, the transaction price is determined for each contract based on the consideration the Company expects to receive for the promised products under the contract and is generally the stated contract price based on
44

an expected cost plus a margin for each performance obligation. These promised products are generally capable of being distinct and accounted for as separate performance obligations.


For the above contracts with customers with respect to which the Company satisfies a performance obligation over time, the Company recognizes revenue based on the extent of progress towards completion of the performance obligation. The cost-to-cost measure of progress best depicts the transfer of control to the customer which occurs as the Company incurs costs on the contract as the incurred costs are proportionate to the Company's progress in satisfying the performance obligation. Under the cost-to-cost measure of progress, the extent of progress toward completion is measured based on the ratio of costs incurred to date to the total estimated costs at completion of the performance obligation. Revenues are recognized proportionally as costs are incurred. Costs to fulfill a contract include all direct costs related to contract performance. Selling and administrative expenses are charged to operations as incurred. Provision for loss on an uncompleted performance obligation is recognized in the period in which such loss is determined.


The Company regularly reviews the progress and performance of the performance obligation recognized over time under the cost-to-cost method. Any adjustments to net sales, cost of sales, and the related impact to operating income are recognized as necessary in the period they become known. Changes in estimates of net sales, cost of sales, and the related impact to operating income are recognized on a cumulative catch-up basis, which recognizes in the current period the cumulative effect of the changes on current or prior periods based on a performance obligation's cost-to-cost measure of progress.


The Company also recognizes revenues from services contracts over time. For these contracts, the transaction price is determined for each contract based on the consideration the Company expects to receive for the promised service under the contract, which generally is the stated contract price. In order to estimate the standalone selling price of the performance obligation, the Company evaluates the market in which the promised service is sold and estimates the price that customers in the market would be willing to pay. Further, the Company recognizes revenue over time during the term of the agreement as the customer is simultaneously receiving and consuming the benefits provided throughout the Company's performance. Therefore due to control transferring over time, the Company recognizes revenue on a straight-line basis throughout the contract period.

Remaining performance obligations

As of December 31, 2018, the Company's remaining performance obligations are part of contracts that have an original expected duration of one year or less. Therefore, any remaining performance obligations are not required to be disclosed.

Contract assets


Contract assets consist of costs in excess of billings. and contract liabilities

Costs in excess of billings includes unbilled amounts resulting from revenues under contracts with customers that are satisfied over time and when the cost-to-cost measurement method of revenue recognition is utilized and revenue recognized exceeds the amount billed to the customer, and right to payment is not just subject to the passage of time. Amounts maydo not exceed their net realizable value. Costs

in excess of billings are classified as current assets and are reported net of contract billings on a contract-by-contract basis at the end of each reporting period.


Contract liabilities

Contract liabilities consist of billings in excess of cost and unearned revenue. Billings in excess of cost includes billings in excess of revenue recognized and deferred revenue, which includes advanced payments, up-front payments, and progress billing payments. Billings in excess of cost are reported net of contract cost on a contract-by-contract basis at the end of each reporting period and are classified as current liabilities. To determine the revenue recognized in the period from the beginning balance of billings in excess of cost, the contract liability as of the beginning of the period is recognized as revenue on a contract by contract basis when the Company incurs costs to satisfy the performance obligation related to the individual contract. Once the beginning contract liability balance for an individual contract has been fully recognized as revenue, any additional payments received in the period are recognized as revenue once the related costs have been incurred.


Unearned revenue relates to payments received in advance of performance under the contract and is recognized when the Company performs under the contract. Unearned revenue is presented within accrued expenses in the Company's consolidated balance sheets.


Costs to obtain a contract with a customer


The Company recognizes an asset for the incremental costs of obtaining a contract with a customer if the Company expects the benefit of those costs to be longer than one year. AsIf the amortization period of December 31, 2018,the asset is one year or less, the Company does not have any open contracts withrecognizes the incremental costs of obtaining a contract as an original expected duration of greater than one year, and therefore, we expense such costs aswhen incurred. These incremental costs include, but are not limited to, sales commissions incurred to obtain a contract with a customer.


45

Cash and cash equivalents
All highly liquid investments with a maturity of three months or less are considered cash equivalents.

Accounts receivable and allowance for doubtful accounts and contract assets
Accounts receivable are composed of trade and contract receivables recorded at either the invoiced amount or costs in excess of billings, are expected to be collected within one year, and do not bear interest.

The Company’s expected loss allowance methodology for accounts receivable and costs in excess of billings (collectively "accounts receivable") is developed using historical collection experience, current and future economic and market conditions, and a review of the current status of customers' accounts receivables. The Company is exposed to credit losses through sales of products and services. Due to the short-term nature of such accounts receivable, the estimated amount of accounts receivable that may not be collected is based on aging of the accounts receivable balances. Additionally, specific allowance amounts are established to record the appropriate provision for customers that no longer share risk characteristics similar with other accounts receivable. The Company’s monitoring activities include timely account reconciliation, dispute resolution, payment confirmation, consideration of customers' financial condition and macroeconomic conditions. Balances are written off when determined to be uncollectible after all means of collection have been exhausted and the potential for recovery is considered remote.

Estimates are used to determine the allowance. These estimates are based on assessment of anticipated payment and all other historical, current and future information that is reasonably available.

The following table summarizes activity recorded within the allowance for doubtful accounts and contract assets balances for the years ended December 31 (in thousands):
202020192018
Beginning balance$5,951 $6,170 $5,599 
Adoption of ASU 2016-13, cumulative-effect adjustment to retained earnings at January 1, 2020385 — — 
Bad debt expense, net of recoveries1,321 2,577 1,308 
Accounts written off against allowance and other adjustments(4,128)(2,796)(737)
Ending balance$3,529 $5,951 $6,170 

Concentrations of credit risk in accounts receivable are limited to those from significant customers that are believed to be financially sound. As of December 31, 2020 and 2019, the Company's most significant customer is a home improvement retailer. The home improvement retailer purchases from the Residential Products and the Renewable Energy and Conservation segments. Accounts receivable as a percentage of consolidated accounts receivable from the home improvement retailer was 11% and 15% as of December 31, 2020 and 2019, respectively.

Net sales to the home improvement retailer as a percentage of consolidated net sales were 14% in each of the years ended December 31, 2020, 2019 and 2018, with the majority of those sales within the Company's Residential Products segment.

Inventories
Inventories are valued at the lower of cost, determined using the first-in, first-out method, or net realizable value. Shipping and handling costs are recognized as a component of cost of sales.

Property, plant, and equipment
Property, plant, and equipment are stated at cost and depreciated over their estimated useful lives using the straight-line method. Interest is capitalized in connection with construction of qualified assets. Expenditures that exceed an established dollar threshold and that extend the useful lives of assets are capitalized, while repair and maintenance costs are expensed as incurred. The estimated useful lives of land improvements, buildings, and building improvements are 15 to 40 years, while the estimated useful lives for machinery and equipment are 3 to 20 years.

46

The table below sets forth the depreciation expense recognized during the years ended December 31 (in thousands):
202020192018
Depreciation expense$11,252 $10,666 $10,249 

Acquisition related assets and liabilities
Accounting for the acquisition of a business as a purchase transaction requires an allocation of the purchase price to the assets acquired and the liabilities assumed in the transaction at their respective estimated fair values. The most complex estimations of individual fair values are those involving long-lived assets, such as property, plant, and equipment and intangible assets. The Company uses all available information to make these fair value determinations and engages independent valuation specialists to assist in the fair value determination of the acquired long-lived assets.

Goodwill and other intangible assets
The Company tests goodwill for impairment at the reporting unit level on an annual basis at October 31, or more frequently if an event occurs, or circumstances change, that indicate that the fair value of a reporting unit could be below its carrying value. The reporting units are at the component level, or one level below the operating segment level. Goodwill is assigned to each reporting unit as of the date the reporting unit is acquired and based upon the expected synergies of the acquisition.

The Company may elect to perform a qualitative assessment that considers economic, industry and company-specific factors for some or all of our selected reporting units. If, after completing the assessment, it is determined that it is more likely than not that the fair value of a reporting unit is less than its carrying value, the Company proceeds to a quantitative test. The Company may also elect to perform a quantitative test instead of a qualitative test for any or all of the Company's reporting units.

The quantitative impairment test consists of comparing the fair value of a reporting unit, determined using two valuation techniques, to its carrying value. If the carrying value of the reporting unit exceeds its fair value, goodwill is considered impaired, and a loss measured by the excess of the carrying value of the reporting unit over the fair value of the reporting unit must be recorded.

The Company also tests its indefinite-lived intangible assets for impairment on an annual basis as of October 31, or more frequently if an event occurs, or circumstances change, that indicate that the fair value of an indefinite-lived intangible asset could be below its carrying value. The impairment test consists of comparing the fair value of the indefinite-lived intangible asset, determined using discounted cash flows on a relief-from-royalty basis, with its carrying amount. An impairment loss would be recognized for the carrying amount in excess of its fair value. Acquired identifiable intangible assets are recorded at cost. Identifiable intangible assets with finite useful lives are amortized over their estimated useful lives.

Impairment of long-lived assets
Long-lived assets, including acquired identifiable intangible assets with finite useful lives, are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of those assets may not be recoverable. In specific situations, when the Company has selected individual assets to be sold or scrapped, the Company obtains market value data for those specific assets and measures and records the impairment loss based on such data. Otherwise, the Company uses undiscounted cash flows to determine whether impairment exists and measures any impairment loss by approximating fair value using acceptable valuation techniques, including discounted cash flow models and third-party appraisals. While the Company did not recognize any impairment charges related to intangible assets and other long-lived assets during the years ended December 31, 2020 and 2019, impairment charges related to intangible assets and other long-lived assets were recognized during the year ended December 31, 2018. Several of these impairment charges related to exit activities during the year ended December 31, 2018, as described in Note 15 of the consolidated financial statements.

Leases
The Company determines if an agreement is, or contains, a lease at the inception of the agreement. At lease commencement, the Company recognizes a right-of-use asset and a lease liability for leases with terms greater than twelve months. The initial lease liability is recognized at the present value of remaining lease payments over the lease term. Leases with an initial term of twelve months or less are not recorded on the Company's
47

consolidated balance sheet. The Company recognizes lease expense for operating leases on a straight-line basis over the lease term. The Company combines lease and non-lease components, such as common area maintenance costs, in calculating the related asset and lease liabilities for all underlying asset groups. Operating lease cost is included in income from operations and includes short-term leases and variable lease costs which are immaterial.

Deferred charges
Deferred charges associated with initial costs incurred to enter into new debt arrangements are included in other assets and are amortized as a part of interest expense over the terms of the associated debt agreements.

Advertising
The Company expenses advertising costs as incurred. For the years ended December 31, 2020, 2019 and 2018, advertising costs were $7.2 million, $5.7 million, and $5.0 million, respectively.

Foreign currency transactions and translation
The assets and liabilities of the Company’s foreign subsidiaries are translated into U.S. dollars at the rate of exchange in effect at the balance sheet date. Income and expense items are translated at the average exchange rates prevailing during the period.

Income taxes
The provision for income taxes is determined using the asset and liability approach. Under this approach, deferred income taxes represent the expected future tax consequences of temporary differences between the carrying amounts and tax basis of assets and liabilities. The Company records a valuation allowance to reduce deferred tax assets when uncertainty exists regarding their realization.

Equity-based compensation
The Company measures the cost of equity-based compensation based on grant date fair value and recognizes the cost over the period in which the employee is required to provide service in exchange for the award reduced by forfeitures. Equity-based compensation consists of grants of stock options, deferred stock units, common stock, restricted stock units, and performance stock units. Equity-based compensation expense is included as a component of selling, general, and administrative expenses.


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Recent accounting pronouncements
Recent Accounting Pronouncements Adopted
StandardDescriptionFinancial Statement Effect or Other Significant Matters
ASU No. 2016-13
Financial Instruments - Credit Losses
(Topic 326)
The objective of this standard is to provide financial statement users with more decision-useful information about the expected credit losses on financial instruments and other commitments to extend credit, including trade receivables, held by an entity at each reporting date. The amendments in this update replace the incurred loss impairment methodology in current GAAP with a methodology that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information to inform credit loss estimates.
The standard is effective for the Company as of January 1, 2020. The Company adopted the amendments in this update using the modified retrospective approach through a cumulative-effect adjustment to retained earnings of $291,000, net of $96,000 of income taxes, on the opening consolidated balance sheet as of January 1, 2020. The Company's financial assets that are in the scope of the standard are contract assets and accounts receivables which are short-term in nature. Additionally, the Company has identified and implemented appropriate changes to the Company's business processes, policies and internal controls to support reporting and disclosures.


Date of adoption: Q1 2020

ASU 2018-15
Intangibles - Goodwill and Other - Internal-Use Software (Subtopic 350-40), Customer's Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract

The amendments in this update require an entity to apply the same requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract as the entity would for implementation costs incurred to develop or obtain internal-use software. The accounting for the service element is not affected by the amendments in this update.

The standard is effective for the Company as of January 1, 2020. The Company adopted the amendments in this update using the prospective method of adoption, and the adoption did not have a material impact to the Company's financial statements.




Date of adoption: Q1 2020

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Recent Accounting Pronouncements Not Yet Adopted
StandardDescriptionFinancial Statement Effect or Other Significant Matters
ASU No. 2019-12
Income Taxes (Topic 740), Simplifying the Accounting for Income Taxes
The amendments in this update simplify the accounting for income taxes by removing certain exceptions to the general principles in Topic 740 and improve consistent application by clarifying and amending existing guidance. The amendments of this standard are effective for fiscal years beginning after December 15, 2020, including interim periods within those fiscal years. Early adoption is permitted, including adoption in any interim period for which financial statements have not been issued, with the amendments to be applied on a respective, modified retrospective or prospective basis, depending on the specific amendment.

The Company is currently evaluating the requirements of this standard. The standard is not expected to have a material impact on the Company's financial statements.













Planned date of adoption: Q1 2021
The Company considers the applicability and impact of all ASUs. ASUs not listed above were assessed and determined to be either not applicable, or had or are expected to have minimal impact on our financial statements and related disclosures.

(2) ACCOUNTS RECEIVABLE, NET

Accounts receivable at December 31 consisted of the following (in thousands):
20202019
Trade accounts receivable$174,604 $119,239 
Costs in excess of billings26,915 20,607 
Total accounts receivables201,519 139,846 
Less allowance for doubtful accounts(3,529)(5,951)
Accounts receivable, net$197,990 $133,895 

Refer to Note 3 "Revenue" concerning the Company's costs in excess of billings. The Company's accounts receivable balance as of December 31, 2020 primarily increased from December 31, 2019 due to acquired receivables of approximately $62 million during 2020. Refer to Note 6 "Acquisitions" for additional information concerning the Company's acquisitions.

The Company considered the current and expected future economic and market conditions surrounding the COVID-19 pandemic and determined that the estimate of credit losses was not significantly impacted as of December 31, 2020.

(3)    REVENUE

Sales includes revenue from contracts with customers for designing, engineering, manufacturing and installation of solar racking systems and greenhouse structures; extraction systems; roof and foundation ventilation products; centralized mail systems and electronic package solutions; rain dispersion products and roofing accessories; expansion joints and structural bearings.

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Refer to Note 20 "Segment Information" for additional information related to revenue recognized by timing of transfer of control by reportable segment.

Payment terms and conditions vary by contract, although terms generally include a requirement of payment within a range from 30 to 60 days, or in certain cases, up front deposits. In circumstances where the timing of revenue recognition differs from the timing of invoicing, the Company has determined that the Company's contracts generally do not include a significant financing component. Taxes collected from customers, which are subsequently remitted to governmental authorities, are excluded from sales.

As of December 31, 2020, the Company's remaining performance obligations are part of contracts that have an original expected duration of one year or less. Additionally, as of December 31, 2020 and 2019, there were no assets recognized related to incremental costs of obtaining a contract with a customer as the benefits of these costs are not expected to exceed one year.

Contract assets and contract liabilities

The Company's contract assets and contractconsist of costs in excess of billings. Contract liabilities consist of billings in excess of cost and unearned revenue, respectively. The following table presents the ending and beginning balances of costs in excess of billings, billings in excess of cost and unearned revenue, respectively. The following table presentsrespectively, as of December 31, (in thousands):
202020192018
Costs in excess of billings$26,915 $20,607 $22,634 
Billings in excess of cost(34,702)(47,598)(17,857)
Unearned revenue(21,325)(15,389)(10,847)

Revenue recognized that was included in billings in excess of cost and unearned revenue at the beginning and ending balances and significant changes inof the periods, respectively, during the years ended December 31, (in thousands):
202020192018
Revenue recognized in the period from:
Amounts included in billings in excess of cost
at the beginning of the period
$45,536 $17,371 $10,097 
Amounts included in unearned revenue
at the beginning of the period
$12,229 $10,090 $2,988 

At December 31, 2020, costs in excess of billings, and billings in excess of cost, balanceand unearned revenue included approximately $6.8 million, $12.4 million and $9.0 million, respectively, from acquisitions during the year ended December 31, 2018:
 
December 31,
2018
 January 1, 2018 (1)
Costs in excess of billings$22,634
 $16,532
Billings in excess of cost(17,857) (12,779)
Unearned revenue(12,028) (3,336)
Revenue recognized in the period from:   
Amounts included in billings in excess of cost at the beginning of the period10,097
  
Amounts included in unearned revenue at the beginning of the period2,988
  

(1) Due2020. The increase in contract liabilities as of December 31, 2019 compared to the adoption of ASC 606 effective January 1, 2018, the Company recorded a transition adjustment to the opening balance of "Costs in excess of billings" and "Unearned revenue" at January 1, 2018, respectively. There were no transition adjustments to the opening balance of "Billings in Excess of Cost" at January 1, 2018. Refer to "Transition disclosures" below for further explanation of cumulative effect of the changes made to the Company's consolidated January 1, 2018 balance sheet for the adoption of ASC 606.

Transition disclosures

On January 1, 2018, the Company adopted the accounting standard ASC 606, Revenue from Contracts with Customers, only for contracts that were not completed at the date of initial application using the modified retrospective method. The Company recognized the cumulative effect of initially applying ASC 606 as an adjustment to the opening balance of retained earnings. The comparative period information has not been restated and continues to be reported under the accounting standards in effect for that period. The Company does not expect the adoption of this standard to have a material impact to the Company's net income on an ongoing basis.

A majority of the Company's revenues continue to be recognized when products are shipped or service is provided and the customer takes ownership and assumes the risk of loss. For certain custom fabricated products for which there is no alternative use and the Company has enforceable rights to payment for performance to date where revenue was previously recognized upon transfer of title and risk of loss, the Company now recognizes revenue as the Company satisfies its performance over time in accordance with ASC 606.

The cumulative effect of the changes made to the Company's consolidated January 1, 2018 balance sheet for the adoption of ASC 606 is as follows (in thousands):
 Balance at December 31, 2017 Adjustments Balance at January 1, 2018
Assets     
Accounts receivable, net$145,385
 $4,922
 $150,307
Costs in excess of billings (1)$11,610
 $4,922
 $16,532
Inventories$86,372
 $(4,735) $81,637
Total current assets$462,764
 $187
 $462,951
Total assets$991,385
 $187
 $991,572
      
Liabilities     
Accrued expenses (2)$75,467
 $(87) $75,380
Total current liabilities$171,033
 $(87) $170,946
      
Shareholders' equity     
Retained earnings$274,562
 $274
 $274,836
Total shareholders' equity$531,719
 $274
 $531,993
Total liabilities and shareholders' equity$991,385
 $187
 $991,572
(1) The balance presented at December 31, 2017 for "Costs in excess of billings" represents the balance reported in Note 2 of the Company's annual report on Form 10-K for the year ended December 31, 2017. This balance was included within the total balance of "Accounts receivable, net" presented on the Company's Consolidated Balance Sheet on Form 10-K as of December 31, 2017. Due to the adoption of ASC 606 effective January 1, 2018, the Company recorded a transition adjustment to the opening balance of "Costs in excess of billings" at January 1, 2018 that is included in the "Accounts receivable, net" line item presented on the Company's Consolidated Balance Sheet and disclosed in Note 2 of this Form 10-K for the year ended December 31, 2018.
(2) Included in "Accrued expenses" at December 31, 2017 was "Unearned revenue" in the amount of $3.681 million presented in "Other" balance reported in Note 7 of the Company's annual report on Form 10-K for the year ended December 31, 2017. Due to the adoption of ASC 606 effective January 1, 2018, the Company recorded a transition adjustment in the amount of $0.3 million to reduce the opening balance of "Unearned revenue" at January 1, 2018 that is included in "Accrued expense" line item presented on the Company's Consolidated Balance Sheet and disclosed in "Other" in Note 8 of this Form 10-K for the year ended December 31, 2018.


In accordance with ASC 606, the disclosure of the impact of adoption on the Company's consolidated statement of operations and balance sheet for the periods ended December 31, 2018 is as follows (in thousands):was primarily due to the timing of significant advanced and up-fronts payments in the Renewable Energy and Conservation segment near the end of December 31, 2019 from contracts with customers for which the performance obligations had not been satisfied.
Consolidated Statement of Operations
 Twelve Months Ended December 31, 2018
 As Reported Without Adoption of ASC 606 
Effect of Change
Higher (Lower)
      
Net sales$1,002,372
 $1,000,882
 $1,490
Cost of sales760,012
 759,165
 847
Gross profit242,360
 241,717
 643
Provision for income taxes16,136
 15,956
 180
Net income$63,809
 $63,346
 $463

Consolidated Balance Sheet
 December 31, 2018
 As Reported Without Adoption of ASC 606 
Effect of Change
Higher (Lower)
Assets     
Accounts receivable, net$140,283
 $133,526
 $6,757
Inventories98,913
 104,592
 (5,679)
Total current assets544,553
 543,475
 1,078
Total assets1,061,645
 1,060,567
 1,078
      
Liabilities     
Accrued expenses87,074
 86,733
 341
Total current liabilities392,872
 392,531
 341
      
Shareholders' equity     
Retained earnings338,995
 338,258
 737
Total shareholders' equity596,693
 595,956
 737
Total liabilities and shareholders' equity$1,061,645
 $1,060,567
 $1,078



(4) INVENTORIES
Inventories at December 31 consisted of the following (in thousands):
20202019
Raw material$66,018 $42,030 
Work-in-process5,382 5,023 
Finished goods31,205 18,460 
Gross inventory$102,605 $65,513 
Less reserves(4,298)(3,556)
Total inventories$98,307 $61,957 
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 2018 2017
Raw material$57,845
 $42,661
Work-in-process6,930
 10,598
Finished goods34,138
 33,113
Total inventories$98,913
 $86,372
The Company's gross inventory balances are reduced by reserves for excess, obsolete and slow moving inventory and estimates for determining net realizable value of the inventory that are reported on a net basis on the Company's consolidated balance sheet.

The Company's total inventory balance as of December 31, 2020 increased from December 31, 2019 largely due to acquired inventory of approximately $30 million during 2020. Refer to Note 6 "Acquisitions" for additional information concerning the Company's acquisitions.
The following table summarizes activity recorded within the reserve for excess, obsolete and slow moving inventory for the years ended December 31 (in thousands):
202020192018
Beginning balance$3,463 $2,971 $2,852 
Excess, obsolete and slow moving inventory expense355 1,134 363 
Scrapped inventory and other adjustments343 (642)(244)
Ending balance$4,161 $3,463 $2,971 
 2018 2017 2016
Beginning balance$3,695
 $3,801
 $7,428
Excess, obsolete and slow moving inventory expense729
 1,276
 (239)
Scrapped inventory and other adjustments(252) (1,382) (3,388)
Ending balance$4,172
 $3,695
 $3,801
(5) PROPERTY, PLANT, AND EQUIPMENT
Components of property, plant, and equipment at December 31 consisted of the following (in thousands):
20202019
Land and land improvements$4,605 $4,583 
Building and improvements41,164 39,901 
Machinery and equipment188,853 174,058 
Construction in progress10,458 5,131 
Property, plant, and equipment, gross245,080 223,673 
Less: accumulated depreciation(155,518)(145,521)
Property, plant, and equipment, net$89,562 $78,152 
 2018 2017
Land and land improvements$6,061
 $6,301
Building and improvements46,678
 46,562
Machinery and equipment204,326
 195,301
Construction in progress7,690
 8,522
Property, plant, and equipment, gross264,755
 256,686
Less: accumulated depreciation(168,925) (159,588)
Property, plant, and equipment, net$95,830
 $97,098

(6) ACQUISITIONS

2020 Acquisitions

During the year ended December 31, 2020, the Company acquired 5 businesses in separate transactions, 4 of which are included within our Renewable Energy and Conversation and 1 in our Residential Products segments. The total preliminary purchase consideration was $313.3 million, and the preliminary allocation of purchase consideration for each acquisition was allocated to the assets acquired and liabilities assumed based upon their respective fair values.

On December 31, 2020, the Company purchased all the outstanding stock of TerraSmart LLC ("TerraSmart"), the leading provider of screw-based, ground-mount solar racking technology, particularly used for solar projects installed on challenging terrain. The results of TerraSmart have been included in the Company's consolidated financial results since the date of acquisition within the Company's Renewable Energy and Conservation segment. The preliminary purchase consideration for the acquisition of TerraSmart was $228.2 million, which includes a preliminary working capital adjustment and certain other adjustments provided for in the stock purchase agreement.

The purchase price for the acquisition was preliminarily allocated to the assets acquired and liabilities assumed based upon their respective fair values estimated as of the date of acquisition. The Company has commenced the process to confirm existence, condition and completeness of assets acquired and liabilities assumed to obtain fair values of the assets acquired and liabilities assumed to determine the amount of goodwill to be recognized as of the date of acquisition. Due to the timing of the acquisition, we continue to gather information supporting the acquired assets and liabilities. Accordingly, all amounts recorded were provisional. These provisional amounts are subject to change if new information is obtained about facts and circumstances that existed as of the acquisition date that, if known, would have affected the measurement of the amounts recognized as of that date The final determination of the fair value of certain assets and liabilities will be completed within the measurement period of up to one year from the date of acquisition. The final values may also result in changes to depreciation and amortization expense
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related to certain assets such as property, plant and equipment and acquired intangible assets. The excess consideration was recorded as goodwill and approximated $143.2 million, all of which is deductible for tax purposes. Goodwill represents future economic benefits arising from other assets acquired that could not be individually identified including workforce additions, growth opportunities, and increased presence in the domestic solar energy market. The final purchase price allocation will be completed no later than December 31, 2021.

The preliminary allocation of the purchase consideration to the estimated fair value of the assets acquired and liabilities assumed is as follows as of the date of the acquisition (in thousands):
Cash$1,712 
Working capital23,833 
Property, plant and equipment8,345 
Acquired intangible assets51,700 
Other assets1,478 
Other liabilities(2,081)
Goodwill143,245 
Fair value of purchase consideration$228,232 

The intangible assets acquired in this acquisition consisted of the following (in thousands):
Fair ValueWeighted-Average Amortization Period
Trademarks$16,400 Indefinite
Trademarks300 7 years
Technology2,500 15 years
Customer relationships24,000 10 years
Non-compete agreements2,200 5 years
Backlog6,300 Less than 1 year
Total$51,700 


On December 11, 2020, the Company purchased all the outstanding stock of Sunfig Corporation ("Sunfig"), a provider of software solutions that optimize solar energy investments through upstream design, performance and financial modeling, for a preliminary purchase consideration of $3.8 million, which includes a preliminary working capital adjustment and certain other adjustments provided for in the stock purchase agreement. The results of Sunfig have been included in the Company's consolidated financial results since the date of acquisition within the Company's Renewable Energy and Conservation segment. The excess consideration was recorded as goodwill and approximated $3.2 million, all of which is deductible for tax purposes.

On October 15, 2020, the Company purchased substantially all of the assets of Architectural Mailboxes LLC ("Architectural Mailboxes"), a complementary addition to Gibraltar's existing mail and package solutions business within the Residential Products segment, for a preliminary purchase consideration of $26.9 million, which includes a working capital adjustment and certain other adjustments provided for in the asset purchase agreement. The results of Architectural Mailboxes have been included in the Company's consolidated financial results since the date of acquisition within the Company's Residential Products segment. The excess consideration was recorded as goodwill and approximated $7.4 million, all of which is deductible for tax purposes.

On February 13, 2020, the Company purchased substantially all of the assets of Delta Separations, LLC, a California limited liability company, and Teaching Tech, LLC, a California limited liability company (collectively, "Delta Separations") for a preliminary purchase consideration of $47.1 million, which includes a working capital adjustment and certain other adjustments provided for in the asset purchase agreement. Delta Separations was a privately-held engineering company primarily engaged in the assembly and sale of centrifugal ethanol-based extraction systems. The results of Delta Separations have been included in the Company's consolidated financial results since the date of acquisition within the Company's Renewable Energy and Conservation segment. The excess consideration was recorded as goodwill and approximated $32.2 million, all of which is deductible for tax purposes.
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On January 15, 2020, the Company purchased substantially all of the assets of Thermo Energy Systems Inc. ("Thermo"), a Canadian-based, privately held provider of commercial greenhouse solutions in North America providing growing infrastructure for the plant based organic food market, for a preliminary purchase consideration of $7.3 million. The results of Thermo have been included in the Company's consolidated financial results since the date of acquisition within the Company's Renewable Energy and Conservation segment. Goodwill of approximately $18.7 million was recorded, all of which is deductible for tax purposes.

The preliminary allocation of the purchase price of the four 2020 acquisitions noted above - Sunfig, Architectural Mailboxes, Delta Separations, and Thermo - is subject to adjustments during the measurement period as third-party valuations are finalized. The preliminary allocation of the purchase consideration to the estimated fair value of the assets acquired and liabilities assumed in these four acquisitions is as follows as of the respective date of the acquisition (in thousands):
Cash$145 
Working capital(14,930)
Property, plant and equipment1,740 
Acquired intangible assets38,296 
Other current assets1,528 
Other assets2,381 
Other liabilities(5,508)
Goodwill61,436 
Fair value of purchase consideration$85,088 

Goodwill represents future economic benefits arising from other assets acquired that could not be individually identified including workforce additions, growth opportunities, and increased presence in the respective markets.

The intangible assets acquired in the four acquisitions noted above consisted of the following (in thousands):
Fair ValueWeighted-Average Amortization Period
Trademarks$8,200 Indefinite
Trademarks1,177 3 years
Technology8,175 7 - 15 years
Customer relationships18,780 5 - 13 years
Non-compete agreements1,036 5 years
Backlog928 Less than 1 year
Total$38,296 

2019 Acquisition
On August 30, 2019, the Company acquired all of the outstanding membership interests of Apeks LLC ("Apeks"), a designer and manufacturer of botanical oil extraction systems and equipment. The results of Apeks have been included in the Company's consolidated financial results since the date of acquisition within the Company's Renewable Energy and Conservation segment. The aggregate purchase consideration for the acquisition of Apeks was $12.6 million, which includes a working capital adjustment and certain other adjustments provided for in the membership interest purchase agreement.
The purchase price for the acquisition was allocated to the assets acquired and liabilities assumed based upon their respective fair values. The excess consideration was recorded as goodwill and approximated $6.4 million, all of which is deductible for tax purposes. Goodwill represents future economic benefits arising from other assets acquired that could not be individually identified including workforce additions, growth opportunities, and presence in the extraction processing markets.
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The allocation of the purchase consideration to the fair value of the assets acquired and liabilities assumed is as follows as of the date of the acquisition (in thousands):
Cash$4,154 
Working capital(1,515)
Property, plant and equipment1,059 
Acquired intangible assets3,000 
Other assets508 
Other liabilities(1,081)
Goodwill6,436 
Fair value of purchase consideration$12,561 

The intangible assets acquired in this acquisition consisted of the following (in thousands):
Fair ValueWeighted-Average Amortization Period
Trademarks$1,400 Indefinite
Technology900 7 years
Customer relationships700 6 years
Total$3,000 

2018 Acquisition
On August 21, 2018, the Company acquired all of the outstanding stock of SolarBOS. SolarBOS is a provider of electrical balance of systems products, which consists of electrical components such as wiring, switches, and combiner boxes that support photovoltaic systems, for the U.S. solar renewable energy market. The Company expects the acquisition of SolarBOS to enable the Company to provide complementary product offerings to its existing customers and strengthen its position in the solar renewable energy market. The results of SolarBOS have been included in the Company's consolidated financial results since the date of acquisition (within the Company's Renewable Energy and Conservation segment). The preliminary aggregate purchase consideration for the acquisition of SolarBOS was $6.5$6.4 million, which includes a working capital adjustment and certain other adjustments provided for in the stock purchase agreement. The acquisition was financed through cash on hand.
The preliminary purchase price for the acquisition was allocated to the assets acquired and liabilities assumed based upon their respective fair values. The excess consideration was recorded as goodwill and approximated $3.1$2.9 million, all of which is deductible for tax purposes. Goodwill represents future economic benefits arising from other assets acquired that could not be individually identified including workforce additions, growth opportunities, and increased presence in the solar renewable energy markets.
The allocation of the preliminary purchase consideration to the fair value of the assets acquired and liabilities assumed is as follows as of the date of the acquisition (in thousands):
Cash$915
Working capital680
Property, plant and equipment483
Acquired intangible assets1,450
Other assets13
Other liabilities(51)
Goodwill3,051
Fair value of purchase consideration$6,541

The intangible assets acquired in this acquisition consisted of the following (in thousands):

 Fair Value Estimated
Useful Life
Trademarks$300
 3 years
Technology450
 9 years
Customer relationships700
 9 years
Total$1,450
  

2017 Acquisition
On February 22, 2017, the Company acquired all of the outstanding stock of Package Concierge. Package Concierge is a leading provider of multifamily electronic package delivery locker systems in the United States.

The acquisition of Package Concierge has enabled the Company to expand its position in the fast-growing package delivery solutions market. The results of Package Concierge have been included in the Company's consolidated financial results since the date of acquisition (within the Company's Residential Products segment). The final aggregate purchase consideration for the acquisition of Package Concierge was $18.9 million.

The purchase price for the acquisition was allocated to the assets acquired and liabilities assumed based upon their respective fair values. The excess consideration was recorded as goodwill and approximated $16.8 million, which is not deductible for tax purposes. Goodwill represents future economic benefits arising from other assets acquired that could not be individually identified including workforce additions, growth opportunities, and increased presence in the building products markets.

The allocation of the purchase consideration to the fair value of the assets acquired and liabilities assumed is as follows as of the date of the acquisition (in thousands):
Cash$915 
Working capital680 
Property, plant and equipment483 
Acquired intangible assets1,450 
Other assets13 
Other liabilities(51)
Goodwill2,879 
Fair value of purchase consideration$6,369 

55

Cash$590
Working capital(1,998)
Property, plant, and equipment55
Acquired intangible assets3,600
Other assets8
Deferred income taxes(128)
Goodwill16,790
Fair value of purchase consideration$18,917
Table of Contents

The intangible assets acquired in this acquisition consisted of the following (in thousands):
Fair ValueWeighted-Average Amortization Period
Trademarks$300 3 years
Technology450 9 years
Customer relationships700 9 years
Total$1,450 
 Fair Value Estimated
Useful Life
Trademarks$600
 Indefinite
Technology1,300
 10 years
Customer relationships1,700
 7 years
Total$3,600
  

2016 Acquisition
On October 11, 2016, the Company acquired all of the outstanding stock of Nexus Corporation ("Nexus"). Nexus is a leading provider of commercial-scale greenhouses to customers in the United States.


The acquisition of Nexus has enabled the Company to strengthen its position in the commercial greenhouse market in the United States. The resultsTerraSmart was financed through a combination of Nexus have been included incash on hand and borrowings under the Company's consolidated financial results since the date of acquisition (within the Company's Renewable Energy and Conservation segment). The final aggregate purchase consideration for the acquisition of Nexus was $23.8 million, which includes a working capital adjustment and certain other adjustments provided for in the stock purchase agreement.

The purchase price for the acquisition was allocated to the assets acquired and liabilities assumed based upon their respective fair values. The excess consideration was recorded as goodwill and approximated $11.5 million, of which all is deductible for tax purposes.

The allocation of the purchase consideration to the fair value of the assets acquired and liabilities assumed is as follows as of the date of the acquisition (in thousands):
Cash$2,495
Working capital(1,109)
Property, plant, and equipment4,702
Acquired intangible assets6,200
Other assets23
Goodwill11,451
Fair value of purchase consideration$23,762

The intangible assets acquired in this acquisition consisted of the following (in thousands):
 Fair Value Estimated
Useful Life
Trademarks$3,200
 Indefinite
Technology1,300
 15 years
Customer relationships800
 11 years
Backlog900
 0.25 years
Total$6,200
  
revolving credit facility. The acquisitions of SolarBOS, Package ConciergeSunfig, Architectural Mailboxes, Delta Separations, Thermo, Apeks and NexusSolarBOS were funded from available cash on hand.
The Company incurred certain acquisition-related costs composed of legal and consulting fees, and these costs were recognized as a component of selling, general, and administrative expenses in the consolidated statements of income.operations. The Company also recognized costs related to the sale of inventory at fair value as a result of allocating the purchase price of recent acquisitions.

All acquisition related costs consisted of the following for the years ended December 31 (in thousands):
202020192018
Cost of sales$634 $401 $
Selling, general and administrative costs3,230 1,517 497 
Total acquisition related costs$3,864 $1,918 $497 
 2018 2017 2016
Selling, general and administrative costs$497
 $146
 $228
Cost of sales
 
 81
Total acquisition related costs$497
 $146
 $309
(7) GOODWILL AND RELATED INTANGIBLE ASSETS
Goodwill
The changes in the carrying amount of goodwill for the years ended December 31 were as follows (in thousands):
Renewable Energy & ConservationResidential ProductsInfrastructure ProductsTotal
Residential
Products
 
Industrial and
Infrastructure
Products
 Renewable Energy and Conservation Total
Balance at December 31, 2016$181,285
 $53,884
 $68,863
 $304,032
Balance at December 31, 2018Balance at December 31, 2018$71,827 $198,075 $31,678 $301,580 
Acquired goodwill16,790
 
 
 16,790
Acquired goodwill5,857 5,857 
Adjustments to prior year acquisitions
 
 (832) (832)Adjustments to prior year acquisitions(172)(172)
Foreign currency translation
 396
 688
 1,084
Foreign currency translation90 90 
Balance at December 31, 2017$198,075
 $54,280
 $68,719
 $321,074
Balance at December 31, 2019Balance at December 31, 2019$77,602 $198,075 31,678 $307,355 
Acquired goodwill
 
 3,051
 3,051
Acquired goodwill197,866 7,377 205,243 
Adjustments to prior year acquisitions
 (38) 
 (38)Adjustments to prior year acquisitions578 578 
Foreign currency translation
 (473) 57
 (416)Foreign currency translation1,103 1,103 
Balance at December 31, 2018$198,075
 $53,769
 $71,827
 $323,671
Balance at December 31, 2020Balance at December 31, 2020$277,149 $205,452 31,678 $514,279 
Goodwill is recognized net of accumulated impairment losses of $235.4$133.2 million as of December 31, 20182020 and 2017,2019, respectively. NoNaN goodwill impairment charges were recognized by the Company during 2018.2020 or 2019.
Annual Impairment Testing
The Company performed its annual goodwill impairment test as of October 31, 2018, 2017,2020, 2019, and 2016. The Company did not recognize any impairment charges during 2018, 2017, and 2016 as a result2018.

56

During the October 31, 20182020 impairment test, the Company conducted a quantitative analysis for all twelve10 of the Company’s reporting units. The quantitative impairment test consists of comparing the fair value of a reporting unit with its carrying value including goodwill. The fair value of each reporting unit evaluated under the quantitative test was determined using two valuation techniques: an income approach and a market approach. Each valuation approach relies on significant assumptions including a weighted average cost of capital ("WACC") based upon the capital structure of market participants in the Company’s peer groups, projected revenue growth, forecasted cash flows, and earnings multiples based on the market value of the Company and market participants within its peer groups.
As a result of our annual testing for 20182020, 2019 and 2017,2018, none of the reporting units with goodwill as of our testing date had carrying values in excess of their fair values.
Interim Impairment Testing
We testThe Company tests goodwill and indefinite-lived intangible assets for impairment on an annual basis as of October 31 and at interim dates when indicators of impairment are present. The Company considered the current and future macroeconomic and market conditions, along with its current market capitalization, projected cash flows and internal and external forecasts, and projections relating to the impact of the COVID-19 pandemic on each of its reporting units during the interim periods. The Company determined that no triggering events had occurred which would require an interim impairment test to be performed. In 2018, 20172020, 2019 and 2016,2018, no indicators of impairment were identified as of interim dates; therefore, no interim tests were performed.


Acquired Intangible Assets
Acquired intangible assets consist of the following (in thousands):
December 31, 2018 December 31, 2017   December 31, 2020December 31, 2019
Gross
Carrying
Amount
 Accumulated
Amortization
 Gross
Carrying
Amount
 Accumulated
Amortization
 Estimated
Useful Life
Gross
Carrying
Amount
Accumulated
Amortization
Gross
Carrying
Amount
Accumulated
Amortization
Indefinite-lived intangible assets:        Indefinite-lived intangible assets:
Trademarks$43,870
 $
 $45,107
 $
 IndefiniteTrademarks$56,570 $$32,570 $
Finite-lived intangible assets:        Finite-lived intangible assets:
Trademarks6,094
 3,518
 5,876
 3,062
 3 to 15 YearsTrademarks5,818 3,385 4,340 2,680 
Unpatented technology28,644
 13,881
 28,107
 12,033
 5 to 20 YearsUnpatented technology38,752 17,765 28,177 15,196 
Customer relationships70,419
 35,678
 80,707
 39,652
 5 to 17 YearsCustomer relationships98,500 31,580 55,401 26,028 
Non-compete agreements1,649
 1,224
 1,649
 931
 4 to 10 YearsNon-compete agreements4,885 1,747 1,649 1,499 
BacklogBacklog7,228 911 
106,806
 54,301
 116,339
 55,678
 155,183 55,388 89,567 45,403 
Total acquired intangible assets$150,676
 $54,301
 $161,446
 $55,678
 Total acquired intangible assets$211,753 $55,388 $122,137 $45,403 
The Company recognizeddid not recognize impairment charges related to indefinite-lived trademark intangible assets for the years ended December 31, 2020 and 2019. During the year ended December 31, 2018, 2017 and 2016.the Company recognized impairment charges of $1.2 million related to indefinite-lived trademark intangible assets. The Company also recognized impairment charges of $0.3 million related to finite-lived intangible assets for the yearsyear ended December 31, 2018 and 2016.
The following table summarizes the impairment charges for the years ended December 31 (in thousands):
 2018 2017 2016
 Indefinite-lived intangibles (1) 
Definite-lived intangibles
(2)
 Indefinite-lived intangibles (3) Definite-lived intangibles Indefinite-lived intangibles (4) Definite-lived intangibles (5)
Residential Products$200
 $
 $
 $
 $
 $
Industrial and Infrastructure Products
 
 
 
 7,980
 
Renewable Energy and Conservation1,037
 315
 247
 
 1,068
 198
Impairment charges$1,237
 $315
 $247
 $
 $9,048
 $198
(1) Residential Products impairment charges due to annual testing. Renewable Energy and Conservation impairment charges due to the annual testing in its international solar racking business and restructuring in its domestic greenhouse business.
(2) Renewable Energy and Conservation impairment charges due to the restructuring in its domestic greenhouse business.
(3) Renewable Energy and Conservation impairment charges due to the discontinuation of its domestic greenhouse business in China.
(4) Industrial and Infrastructure Products impairment charges due to discontinuation of U.S. bar grating product line and annual testing. Renewable Energy and Conservation impairment due to discontinuation of European residential solar racking business and annual testing.
(5) Renewable Energy and Conservation impairment due to discontinuation of European residential solar racking business.

2018.
The Company recognized amortization expense related to the definite-lived intangible assets. The following table summarizes amortization expense for the years ended December 31 (in thousands):
202020192018
Amortization expense$9,663 $6,891 $7,190 

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 2018 2017 2016
Amortization expense$8,222
 $8,761
 $9,637
Table of Contents
Amortization expense related to acquired intangible assets for the next five years ended December 31 is estimated as follows (in thousands):
20212022202320242025
Amortization expense$18,362 $11,584 $10,721 $10,611 $10,382 

 2019 2020 2021 2022 2023
Amortization expense$7,213
 $6,921
 $6,726
 $6,248
 $5,709


(8) ACCRUED EXPENSES
Accrued expenses at December 31 consist of the following (in thousands):
2018 201720202019
Compensation$32,927
 $34,752
Compensation$18,131 $13,509 
Current portion of cash-settled share-based liabilitiesCurrent portion of cash-settled share-based liabilities3,504 14,817 
Interest and taxes9,231
 8,002
Interest and taxes1,850 3,569 
Customer rebates10,300
 10,517
Customer rebates11,575 10,266 
Insurance7,789
 7,261
Insurance6,915 8,353 
Current operating lease liabilityCurrent operating lease liability8,034 6,487 
Unearned revenue12,028
 3,681
Unearned revenue21,325 15,389 
Other14,799
 11,254
Other12,171 14,207 
Total accrued expenses$87,074
 $75,467
Total accrued expenses$83,505 $86,597 
Accrued expenses for insurance are primarily for general liability, workers’ compensation and employee healthcare policies for which the Company is self-insured up to certain per-occurrence and aggregate limits. The amounts accrued represent the Company's best estimates of the probable amount of claims to be paid. Differences between the amounts accrued and the amount that may be reasonably possible of payment are not material. Accrued expenses for unearned revenue primarily relatesrelate to up-front customer deposits received on contracts for goods and services not yet performedto be provided by the Company as further discussed in Note 3 "Revenue". The current portion of share-based liabilities represents the Company's consolidated financial statements.equity-based awards that are settled in cash, further described in Note 12 "Equity-Based Compensation".
(9) DEBT
Long-termThe Company's long-term debt outstanding at December 31, consists2020 was $85.6 million, consisting of the following (in thousands): 
 2018 2017
Senior Subordinated 6.25% Notes$210,000
 $210,000
Other debt2,000
 2,400
Less unamortized debt issuance costs(1,595) (2,379)
Total debt210,405
 210,021
Less current maturities208,805
 400
Total long-term debt$1,600
 $209,621
Senior Credit Agreement
The Company's Fifth Amended and Restated Credit Agreement dated December 9, 2015 (the "Senior Credit Agreement") had a termination date of December 9, 2020.
The Senior Credit Agreement provided for a revolving credit facility and letters of credit in an aggregate amount of $300 million. The Company had the option to request additional financing from the banks to either increase the revolving credit facility to $500 million or in the form of a term loan of up to $200 million. The Senior Credit Agreement contained three financial covenants. As of December 31, 2018, the Company was in compliance with all three covenants.

Borrowings under the Senior Credit Agreement are secured by the trade receivables, inventory, personal property, equipment, and certain real property of the Company’s significant domestic subsidiaries. Interest rates on the revolving credit facility are based on the LIBOR plus an additional margin that ranges from 1.25% to 2.25% for LIBOR loans based on the Total Leverage Ratio.
In addition, the revolving credit facility is subject to an undrawn commitment fee ranging between 0.20% and 0.30% based on the Total Leverage Ratio and the daily average undrawn balance.
Standby letters of credit of $9.2 million have been issued under the Senior Credit Agreement to third parties on behalf of the Company as of December 31, 2018. These letters of credit reduce the amount otherwise available under the revolving credit facility. The Company had $290.8 million and $288.8$85.0 million of availabilityborrowings under the revolving credit facility atand $0.6 million of other debt. As of December 31, 2018 and 2017, respectively.2019, the Company had 0 outstanding debt.
Senior Credit Agreement
On January 24, 2019, the Company entered into athe Sixth Amended and Restated Credit Agreement ("2019 Senior Credit Agreement"), which amendsamended and restatesrestated the Company’s Fifth Amended and Restated Credit Agreement dated December 9, 2015. Borrowings under the 2019 Senior Credit Agreement are secured by the trade receivables, inventory, personal property, equipment,2015, and general intangibles of the Company’s significant domestic subsidiaries. The 2019 Senior Credit Agreement provides forprovided a revolving credit facility and letters of credit in an aggregate amount equal to $400 million. The Company can request additional financing from the banks to increase the revolving credit facility to $700 million or enter into a term loan of up to $300 million subject to conditions set forth in the Senior Credit Agreement. The 2019 Senior Credit Agreement contains three3 financial covenants. As of December 31, 2020, the Company was in compliance with all 3 covenants.
Interest rates on the 2019 revolving credit facility are based on the LIBOR plus an additional margin that ranges from 1.125% to 2.00%. In addition, the revolving credit facility is subject to an undrawn commitment fee ranging between 0.15% and 0.25% based on the Total Leverage Ratio and the daily average undrawn balance. The 2019 Senior Credit Agreement terminates on January 23, 2024.
Borrowings under the Senior Subordinated NotesCredit Agreement are secured by the trade receivables, inventory, personal property, equipment, and general intangibles of the Company’s significant domestic subsidiaries.
On January 31, 2013,Standby letters of credit of $5.8 million have been issued under the Senior Credit Agreement to third parties on behalf of the Company issued $210as of December 31, 2020. These letters of credit reduce the amount otherwise available under the revolving credit facility. The Company had $309.2 million and $394.0 million of 6.25% Senior Subordinated Notes ("6.25% Notes") due February 1, 2021. The provisionsavailability under the revolving credit facility as of the 6.25% Notes include, without limitation, restrictions on indebtedness, liens,December 31, 2020 and distributions from restricted subsidiaries, asset sales, affiliate transactions, dividends, and other restricted payments. Dividend payments are subject to annual limits and interest is paid semiannually on February 1 and August 12019, respectively.
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Table of each year.Contents
On December 20, 2018, the Company announced on Form 8-K its notice of redemption of its $210 million outstanding Senior Subordinated 6.25% Notes, effective February 1, 2019. The 6.25% Notes were redeemed in accordance with the provisions of the indenture governing the Notes on February 1, 2019. The Company expects to record a charge of approximately $1.0 million for the write-off of deferred financing fees relating to the 6.25% Notes during the quarter ending March 31, 2019.
The aggregate maturities of long-term debt for the next five years and thereafter are as follows (in thousands):
  2019 2020 2021 2022 2023 Thereafter
Long-term debt payments $210,400
 $400
 $400
 $400
 $400
 $
Total cash paid for interest in the years ended December 31 was (in thousands):
202020192018
Interest expense, net$703 $2,323 $10,709 
Interest income276 764 2,156 
Other non-cash adjustments(345)(380)(529)
Cash paid for interest$634 $2,707 $12,336 
 2018 2017 2016
Interest expense, net$12,064
 $14,032
 $14,577
Interest income2,156
 574
 136
Other non-cash adjustments$(529) $(647) $(671)
Cash paid for interest$13,691
 $13,959
 $14,042

(10) PENSION AND OTHER POSTRETIREMENT BENEFITS
Supplemental Pension and Multiemployer Pension Plans
The Company has an unfunded supplemental pension plan which provides defined pension benefits to certain former salaried employees upon retirement. The plan has been frozen, no additional participants will be added to the plan in the future and there are no active employees in the plan.
The Company also has a 401(k) plan which all employees of U.S. subsidiaries are eligible to participate.


The Company contributes to a number of multiemployer defined benefit pension plansplan under the terms of a collective-bargaining agreementsagreement that covercovers union-represented employees.
Total expense for all retirement plans for the years ended December 31 was (in thousands):
  2018 2017 2016
Defined benefit pension plan $4
 $28
 $52
401(k) plan 2,262
 2,248
 1,952
Multiemployer defined benefit plans 234
 292
 296
Postretirement healthcare plan $427
 $476
 $587
Total retirement plan expense $2,927
 $3,044
 $2,887
All of the multiemployer plans are underfunded, and each fund has a rehabilitation plan in place. Each plan with a rehabilitation plan requires minimum contributions from the Company. Given the status of these plans, it is reasonably possible that future contributions to the plans will increase although the Company cannot reasonably estimate a possible range of increased contributions as of December 31, 2018.

Other Postretirement Benefits
The Company has an unfunded postretirement healthcare plan which provides health insurance to certain employees and their spouses upon retirement. This plan has been frozen and no additional participants will be added to the plan in the future.

Total expense for all retirement plans for the years ended December 31 was (in thousands):
202020192018
401(k) plan$2,403 $2,031 $1,876 
Multiemployer and other defined benefit and pension plans70 195 239 
Postretirement healthcare plan351 346 427 
Total retirement plan expense$2,824 $2,572 $2,542 

The Company's 1 multiemployer plan is underfunded and has a rehabilitation plan in place. The rehabilitation plan requires minimum contributions from the Company. Given the status of this plan, it is reasonably possible that future contributions to the plan will increase although the Company cannot reasonably estimate a possible range of increased contributions as of December 31, 2020.

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Table of Contents
The following table presents the changes in the accumulated postretirement benefit obligation related to the Company’s unfunded postretirement healthcare benefits at December 31 (in thousands):
2018 201720202019
Projected benefit obligation at January 1$7,020
 $7,202
Projected benefit obligation at January 1$6,024 $6,135 
Service cost18
 17
Service cost10 17 
Interest cost233
 269
Interest cost172 234 
Actuarial gain(819) (150)Actuarial gain580 (52)
Benefits paid, net of contributions(317) (318)Benefits paid, net of contributions(343)(310)
Projected benefit obligation at December 316,135
 7,020
Projected benefit obligation at December 316,443 6,024 
Fair value of plan assets
 
Fair value of plan assets
Under funded status(6,135) (7,020)Under funded status(6,443)(6,024)
Unamortized prior service cost382
 427
Unamortized prior service cost294 338 
Unrecognized actuarial loss1,431
 2,382
Unrecognized actuarial loss1,843 1,328 
Net amount recognized$(4,322) $(4,211)Net amount recognized$(4,306)$(4,358)
Amounts recognized in the consolidated financial statements consisted of (in thousands):
2018 201720202019
Accrued postretirement benefit liability   Accrued postretirement benefit liability
Current portion$331
 $314
Current portion$335 $330 
Long term portion5,805
 6,706
Long term portion6,108 5,694 
Pre-tax accumulated other comprehensive loss – unamortized post-retirement healthcare costs(1,814) (2,809)Pre-tax accumulated other comprehensive loss – unamortized post-retirement healthcare costs(2,137)(1,666)
Net amount recognized$4,322
 $4,211
Net amount recognized$4,306 $4,358 
The measurement date used to determine postretirement benefit obligation measures was December 31.

Components of net periodic postretirement benefit cost charged to expense for the years ended December 31 were as follows (in thousands):
202020192018
Service cost$10 $17 $18 
Interest cost172 234 233 
Amortization of unrecognized prior service cost44 44 44 
Loss amortization (2)
64 51 132 
Net periodic benefit cost$290 $346 $427 
Assumptions used to calculate the benefit obligation:
Discount rate2.0 %2.9 %4.1 %
Annual rate of increase in the per capita cost of:
Medical costs before age 65 (1)
7.0 %6.8 %7.0 %
Medical costs after age 65 (1)
4.5 %4.5 %5.0 %
Prescription drug costs (1)
7.0 %7.0 %9.5 %
 2018 2017 2016
Service cost$18
 $17
 $22
Interest cost233
 269
 272
Amortization of unrecognized prior service cost44
 44
 44
Loss amortization (2)
132
 146
 134
Net periodic benefit cost$427
 $476
 $472
Assumptions used to calculate the benefit obligation:     
Discount rate4.1% 3.4% 3.8%
Annual rate of increase in the per capita cost of:     
Medical costs before age 65 (1)
7.0% 7.3% 7.5%
Medical costs after age 65 (1)
5.0% 6.3% 6.5%
Prescription drug costs (1)
9.5% 10.5% 10.5%


(1)    It was assumed that these rates would gradually decline to 3.8% by 2075.
(2)    Actuarial (gains)/losses are amortized utilizing the corridor approach. Differences between actual
experience and the actuarial assumptions are reflected in (gain)/loss. If the total net (gain) or loss exceeds 10 percent of the greater of the accumulated postretirement benefit obligation or plan asset,assets, this excess must be amortized over the average remaining service period of the active plan participants. If most of the plan participants are inactive, the amortization period is the expected future lifetime of inactive plan participants.

A 1% change in the annual medical inflation rate issued would have the following impact on the amounts reported at December 31 as follows (in thousands):
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 2018 2017
Effect on accumulated postretirement benefit obligation   
1% increase$831
 $950
1% decrease$(702) $(803)
Effect on annual service and interest costs   
1% increase$36
 $41
1% decrease$(30) $(34)

Expected benefit payments from the plan for the years ended December 31 are as follows (in thousands):
  2019 2020 2021 2022 2023 Years 2024 - 2028
Expected benefit payments $331
 $349
 $364
 $379
 $393
 $2,102
20212022202320242025Years 2026 - 2030
Expected benefit payments$335 $349 $358 $366 $376 $1,910 



(11) ACCUMULATED OTHER COMPREHENSIVE (LOSS) INCOME
The cumulative balance of each component of accumulated other comprehensive (loss) income is as follows (in thousands):
Foreign
Currency
Translation
Adjustment
Minimum post retirement benefit plan adjustmentsTotal Pre-Tax AmountTax (Benefit) ExpenseAccumulated
Other
Comprehensive
(Loss) Income
Balance at December 31, 2018$(5,939)$(2,040)$(7,979)$(745)$(7,234)
Minimum post retirement benefit plan adjustments— 101 101 24 77 
Foreign currency translation adjustment1,766 — 1,766 — 1,766 
Balance at December 31, 2019$(4,173)$(1,939)$(6,112)$(721)$(5,391)
Minimum post retirement benefit plan adjustments— (487)(487)(116)(371)
Foreign currency translation adjustment3,301 — 3,301 — 3,301 
Balance at December 31, 2020$(872)$(2,426)$(3,298)$(837)$(2,461)
 Foreign
Currency
Translation
Adjustment
 Minimum pension and post retirement benefit plan adjustments Total Pre-Tax Amount Tax (Benefit) Expense Accumulated
Other
Comprehensive
(Loss) Income
Balance at December 31, 2016$(5,848) $(2,953) $(8,801) $(1,080) $(7,721)
Minimum pension and post retirement benefit plan adjustments
 315
 315
 110
 205
Foreign currency translation adjustment3,150
 
 3,150
 
 3,150
Balance at December 31, 2017$(2,698) $(2,638) $(5,336) $(970) $(4,366)
Minimum pension and post retirement benefit plan adjustments
 948
 948
 225
 723
Cumulative effect of accounting change (see Note 1)
 (350) (350) 
 (350)
Foreign currency translation adjustment(3,241) 
 (3,241) 
 (3,241)
Balance at December 31, 2018$(5,939) $(2,040) $(7,979) $(745) $(7,234)


The realized adjustments relating to the Company’s minimum pension liability and post retirement health care costs were reclassified from accumulated other comprehensive loss and included in other expense in the consolidated statements of operations.
(12) EQUITY-BASED COMPENSATION
The Company awards equity-based compensation to employees and directors, which is recognized in the statements of operations based on the grant-date fair value of the award. The Company uses the straight-line method for recording compensation expense over a vesting period generally up to four years with either graded or cliff vesting. Stock compensation expense recognized during the period is based on the value of the portion of equity-based awards that is ultimately expected to vest during the period reduced by the unvested expense on unvested awards forfeited during the period.
On May 4, 2018, the shareholders of the Company approved the adoption of the Gibraltar Industries, Inc. 2018 Equity Incentive Plan (the "2018 Plan"). The 2018 Plan provides for the issuance of up to 1,000,000 shares of common stock and supplements the remaining shares available for issuance under the existing Gibraltar Industries, Inc. 2015 Equity Incentive Plan (the "2015 Plan"). The Company's 2005 Equity Incentive Plan (the "Prior Plan") was amended in 2015 to terminate issuance of further awards from the Prior Plan.
Both the 2018 Plan and the 2015 Plan allow the Company to grant equity-based incentive compensation awards, in the form of non-qualified options, restricted shares, restricted stock units, performance shares, performance stock units, and stock rights to eligible participants.
In 2016, the shareholders of the Company approved the adoption of the Gibraltar Industries, Inc. 2016 Stock Plan for Non-Employee Directors ("Non-Employee Directors Plan") which allows the Company to grant awards of shares of the Company's common stock to non-employee Directors of the Company and permits the Directors to defer receipt of such shares pursuant to the terms of the Non-Employee Directors Plan.
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At December 31, 2018, 946,0002020, 513,000 and 73,000136,000 shares were available for issuance under the 2018 Plan and 2015 Plan, respectively, as incentive stock options or other stock awards, and 60,00029,000 shares were available for issuance under the Non-Employee Directors Plan as awards of shares of the Company's common stock.

The Company recognized the following compensation expense in connection with awards that vested under the 2018 Plan, the 2015 Plan, the Prior Plan, and the Non-Employee Directors Plan along with the related tax benefits recognized during the years ended December 31 (in thousands):
2018 2017 2016202020192018
Expense recognized under the Prior Plan$569
 $1,059
 $1,937
Expense recognized under the Prior Plan$40 $192 $569 
Expense recognized under the 2015 Plan7,988
 5,643
 3,993
Expense recognized under the 2015 Plan1,932 5,077 7,988 
Expense recognized under the 2018 Plan188
 
 
Expense recognized under the 2018 Plan5,441 6,731 188 
Expense recognized under the Non-Employee Directors Plan444
 420
 443
Expense recognized under the Non-Employee Directors Plan760 570 444 
Total stock compensation expense$9,189
 $7,122
 $6,373
Total stock compensation expense$8,173 $12,570 $9,189 
Tax benefits recognized related to stock compensation expense$2,509
 $2,133
 $2,485
Tax benefits recognized related to stock compensation expense$2,272 $3,136 $2,509 
Equity Based Awards - Settled in Stock
The following table provides the number of stock options, stock units, and unrestricted sharescommon stock granted during the years ended December 31, along with the weighted-average grant-date fair value of each award:
 202020192018
AwardsNumber of
Awards
Weighted
Average
Grant Date
Fair Value
Number of
Awards
Weighted
Average
Grant Date
Fair Value
Number of
Awards
Weighted
Average
Grant Date
Fair Value
Deferred stock units12,402 $45.98 7,509 $37.95 10,255 $35.96 
Common stock4,134 $45.98 7,509 $37.95 2,113 $35.50 
Restricted stock units81,397 $56.81 152,472 $39.73 116,174 $36.61 
Performance stock units160,426 $55.98 183,908 $40.49 135,929 $33.63 
 2018 2017 2016
AwardsNumber of
Awards
 Weighted
Average
Grant Date
Fair Value
 Number of
Awards
 Weighted
Average
Grant Date
Fair Value
 Number of
Awards
 Weighted
Average
Grant Date
Fair Value
Options
 $
 25,000
 $12.85
 
 $
Deferred stock units10,255
 $35.96
 10,170
 $34.42
 11,945
 $29.30
Common shares2,113
 $35.50
 2,034
 $34.42
 3,185
 $29.30
Restricted stock units116,174
 $36.61
 133,548
 $36.56
 141,982
 $25.44
Performance stock units135,929
 $33.63
 108,748
 $42.72
 
 $

Stock Options

NaN options were granted in 2020, 2019 and 2018. The Company determines the fair value of stock options granted duringbased on the year ended December 31, 2017 was estimatedBlack-Scholes option pricing model on the date of grant, usingand the Black-Scholes option pricing model. No options were granted in 2018 and 2016. Expectedexpected stock volatility wasis based on volatility of the Company’s stock price using a historical period commensurate with the expected life of the options. The following table provides the weighted average assumptions used to value stock options issued during the year ended December 31:

Year of Grant Fair Value 
Expected Life
(in years)
 Expected Stock Volatility Risk-free Interest Rate Expected Dividend Yield
2017 $12.85
 4.00 35.7% 1.7% %

The following table summarizes the ranges of outstanding and exercisable options at December 31, 2018:2020:
Range of Exercise PricesOptions
Outstanding
Weighted Average
Remaining
Contractual Life
(in years)
Weighted
Average
Exercise
Price
Options
Exercisable
Weighted
Average
Exercise
Price
$8.00 – $10.0016,500 0.7$9.74 16,500 $9.74 
$10.01 – $39.000$$
$39.01 – $44.0025,000 1.4$42.35 25,000 $42.35 
41,500 41,500 
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Range of Exercise Prices
Options
Outstanding
 
Weighted Average
Remaining
Contractual Life
(in years)
 
Weighted
Average
Exercise
Price
 
Options
Exercisable
 
Weighted
Average
Exercise
Price
$8.90 – $9.3218,938
 1.70 $8.90
 18,938
 $8.90
$9.33 – $11.7370,721
 2.70 $9.74
 70,721
 $9.74
$11.74 – $19.5820,100
 0.70 $13.72
 20,100
 $13.72
$19.59 - $32.4925,000
 7.00 $25.44
 25,000
 $25.44
$32.50 - $43.0525,000
 8.14 $42.35
 
 $
 159,759
     134,759
  
The following table summarizes information about stock option transactions:
 Options 
Weighted
Average
Exercise
Price
 
Weighted Average
Remaining Contractual
Life (in years)
 
Aggregate
Intrinsic Value
Balance at January 1, 2016458,349
 $16.57
    
Exercised(175,125) 19.08
    
Forfeited(6,000) 18.22
    
Balance at December 31, 2016277,224
 $14.95
    
Granted25,000
 42.35
    
Exercised(42,058) 16.02
    
Forfeited(12,500) 25.44
    
Balance at December 31, 2017247,666
 $17.01
    
Exercised(87,907) 15.75
    
Balance at December 31, 2018159,759
 $17.70
 6.13 $3,026,930
OptionsWeighted
Average
Exercise
Price
Weighted Average
Remaining Contractual
Life (in years)
Aggregate
Intrinsic Value
Balance at January 1, 2018247,666 $17.01 
Exercised(87,907)15.75 
Balance at December 31, 2018159,759 $17.70 
Exercised(42,350)11.57 
Balance at December 31, 2019117,409 $19.91 
Exercised(75,909)14.73 
Balance at December 31, 202041,500 $29.38 1.13$1,766,000 
The aggregate intrinsic value in the preceding table represents the total pre-tax intrinsic value, based on the $35.59$71.94 per share market price of the Company’s common stock as of December 31, 2018,2020, which would have been received by the option holders had all option holders with an exercise price below the per share market price on December 31, 2018,2020, exercised their options as of that date.

Stock unitsUnits and Restricted SharesCommon Stock

The following table summarizes information about non-vested restricted stock units, performance stock units (that will convert to shares upon vesting) and common and restricted shares:stock:
Restricted
Stock Units
Weighted
Average
Grant Date
Fair Value
Common StockWeighted
Average
Grant Date
Fair Value
Performance Stock Units (1) (2)Weighted Average Grant Date Fair ValueDeferred Stock Units (3)Weighted Average Grant Date Fair Value
Balance at December 31, 2019374,432 $33.74 $329,257 $38.53 34,752 $34.21 
Granted82,328 $56.81 4,134 $45.98 160,426 $55.98 12,402 $45.98 
Adjustments— $— — $— 27,528 $40.98 — $— 
Vested(213,448)$34.14 (4,134)$45.98 (81,366)$40.77 $
Forfeited(5,870)$40.92 $(28,556)$40.27 $
Balance at December 31, 2020237,442 $41.15 $407,289 $45.00 47,154 $37.30 
 Restricted
Stock Units
 Weighted
Average
Grant Date
Fair Value
 Common and Restricted
Shares
 Weighted
Average
Grant Date
Fair Value
 Performance Stock Units (1) Weighted Average Grant Date Fair Value Deferred Stock Units (2) Weighted Average Grant Date Fair Value
Balance at December 31, 2017441,816
 $23.96
 4,258
 $17.30
 480,462
 $24.68
 22,115
 $31.65
Granted116,174
 36.61
 2,113
 35.50
 135,929
 33.63
 10,255
 35.96
Vested(137,020) 22.72
 (6,371) 23.34
 (323,118) 18.57
 (5,127) 32.18
Forfeited(25,617) 31.70
 
 
 (57,788) 41.59
 
 
Balance at December 31, 2018395,353
 $27.61
 
 $
 235,485
 $33.78
 27,243
 $33.18


(1) The Company’s performance stock units (“PSUs”) represent shares granted for which the final number of shares earned depends on financial performance or market conditions. The number of shares to be issued may vary between 0% and 200% of the number of performance stock units granted depending on the relative achievement to targeted thresholds. The Company's PSUs with a financial performance condition are based

on either the Company’s return on invested capital (“ROIC”) over a one-year period performance period or revenue, gross profit, and operating profit thresholds over a two-year or three-year performance period. The Company's PSUs with a market condition are based on the ranking of the Company’s total shareholder return (“TSR”) performance, on a percentile basis, over a three year performance period compared to the S&P Small Cap Industrial sector, over the same three year performance period.

(2) The Company's PSU adjustments during 2020 represent additional shares granted for achievement in excess of targeted thresholds at the end of the performance period. The Company's PSUs with a financial performance condition, based on the Company’s ROIC, granted in 2019 accounted for 23,628 units of the total adjustments at a final achievement ratio of 116%. The Company's PSUs with a market condition, based on the relative ranking of the Company’s TSR performance, granted in 2017 accounted for the remaining 3,900 units at final achievement ratio of 115.6%.
(3) Vested and issued upon retirement.termination from service as a member of the Company's Board of Directors.
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The fair value of the common shares,stock, restricted stock units, and deferred stock units, as well as the performance stock units with a financial performance condition granted during the three years ended December 31, 20182020 was based on the Company stock price at grant date of the award. The fair value of the performance stock units with a market condition granted during the three years ended December 31, 20182020 were determined using a Monte Carlo simulation as of the grant date of the award,award. The Company granted performance units with a market condition during 2020, however, no such awards were granted in 2019 and 2018.
The following table sets forth the aggregate intrinsic value of options exercised and aggregate fair value of restricted stock units and restricted shares that vested during the years ended December 31 (in thousands):
2018 2017 2016202020192018
Aggregate intrinsic value of options exercised$2,128
 $628
 $2,439
Aggregate intrinsic value of options exercised$3,812 $1,371 $2,128 
Aggregate fair value of vested restricted stock units$5,307
 $6,756
 $4,368
Aggregate fair value of vested restricted stock units$11,851 $10,017 $5,307 
Aggregate fair value of vested common and restricted shares$149
 $70
 $247
Aggregate fair value of vested common and restricted shares$190 $285 $149 
Aggregate fair value of vested deferred stock units$369
 $350
 $443
Aggregate fair value of vested deferred stock units$570 $285 $369 
As of December 31, 2018,2020, there was $8.3$14.1 million of total unrecognized compensation cost related to non-vested options, restricted shares, and restricted stock units. That cost is expected to be recognized over a weighted average period of 1.92.3 years.
Equity Based Awards - Settled in Cash

As of December 31, 2018,2020, the Company's total share-based liabilities recorded on the consolidated balance sheet was $38.4$18.2 million, of which $23.6$3.5 million was included in current accrued expenses and $14.7 million was included in non-current liabilities. Total share-based liabilities as of December 31, 20172019 were $48.0$28.0 million, of which $29.3$13.2 million was included in non-current liabilities. TheAt December 31, 2020, the Company's equity based awards that are settled in cash include performance stock units settled in cash and aare the awards under the management stock purchase plan.
Performance Stock Units - Settled in Cash
The Company also has PSUs that will convert to cash after three years based upon a one year performance period. The cost of these awards is recognized over the requisite vesting period. The PSUs earned over the performance period were determined based on the Company's actual ROIC relative to the ROIC targeted for the performance period.
The following table provides the number of PSUs which will convert to cash for the years ending December 31:
 2016
Awards
Number of
Units (2)
 
Grant Date Fair Value
(in $000s)
Performance stock units (1)128,000
 $3,100
(1) There were no performance stock units that convert to cash granted to participants in 2018 and 2017.
(2) The participants earned 200% of target aggregating 256,000 PSUs earned. This award will be converted to cash and will be paid to participants in the first quarter of 2019 at the trailing 90-day closing price of the Company's common stock as of December 31, 2018.
The following table summarizes the compensation expense recognized from the change in fair value and vesting of cash settled performance stock units awarded for the years ended December 31 (in thousands):
 2018 2017 2016
Performance stock unit compensation expense$2,846
 $3,591
 $10,377


Management Stock Purchase Plan

The Management Stock Purchase Plan ("MSPP") provides certain employees and Directorsparticipants the ability to defer a portion of their compensation, convertible to unrestricted investments, restricted stock units, or a combination of both, or defer a portion of their Directors’ fees, which deferral is convertedconvertible to restricted stock units, and credited to an account.units. Employees eligible to defer a portion of their compensation also receive a company-matching award in restricted stock units equal to a percentage of their deferred compensation.

The deferrals and related company match are credited to an account that represents a share-based liability thatliability. The portion of the account deferred to unrestricted investments is measured at fair market value of the unrestricted investments, and the portion of the account deferred to restricted stock units and company-matching restricted stock units is measured at a 200-day average of the Company stock price. The account will be converted to and settled in cash payable to participants upon retirement or a termination of their service to the Company.

The following table provides the number of restricted stock units credited to active participant accounts, balance of vested and unvested restricted stock units within active participant accounts, payments made with respect to restricted stock units issued under the MSPP, and MSPP expense during years ended December 31:
202020192018
Restricted stock units credited57,046 61,369 66,843 
Restricted stock units balance, vested and unvested231,343 415,760 387,870 
Share-based liabilities paid, in thousands$15,401 $6,543 $5,232 
MSPP expense, in thousands$4,518 $2,699 $4,809 

64
 2018 2017 2016
Restricted stock units credited66,843
 84,299
 198,155
Restricted stock units balance, vested and unvested387,870
 389,189
 646,669
Share-based liabilities paid, in thousands$5,232
 $6,058
 $3,137
MSPP expense, in thousands$4,809
 $2,432
 $8,565

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(13) FAIR VALUE MEASUREMENTS


Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Depending on the nature of the asset or liability, various techniques and assumptions can be used to estimate fair value. A financial asset or liability’s classification within the hierarchy is determined based on the lowest level input that is significant to the fair value measurement as follows:
Level 1 - Quoted prices in active markets for identical assets or liabilities.
Level 2 - Observable inputs other than quoted prices in active markets for similar assets and liabilities.
Level 3 - Inputs that are unobservable inputs for the asset or liability.


The Company had no financial assets or liabilities measured at fair value on a recurring basis at December 31, 2018 and 2017. The Company's onlydid not have any financial instrumentinstruments for which carrying value differsdiffered from its fair value is the Company's Senior Subordinated 6.25% Notes. Atat December 31, 20182020 and 2017,2019. As of December 31, 2020, the fairCompany had $85 million outstanding on its revolving credit facility under its Senior Credit Agreement. The Company determined the carrying value of the outstanding debt net of unamortized debt issuance costs was $210.8 million and $213.8 million, respectively, compared tobalance on its carrying value of $210.4 million and $210.0 million, respectively. Therevolving credit facility approximates fair value due to the variable market interest rate terms of the Company's Senior Subordinated 6.25% Notes is classifiedcredit facility. The Company had 0 balance outstanding on its revolving credit facility as Level 2 within the fair value hierarchy and was estimated based on quoted market prices adjusted for unamortized debt issuance costs.of December 31, 2019.


The Company’s other financial instruments primarily consist of cash and cash equivalents, accounts receivable, notes receivable, and accounts payable.  The carrying values for ourthese financial instruments approximate fair value. The Company did not have any other material assets or liabilities carried at fair value and measured on a recurring basis as of December 31, 20182020 and 2017.2019.


Other non-recurring fair value measurements


TheWhile the Company recognizeddid not recognize any impairment changes related to certain intangible assets and property, plant, and equipment during the year ended December 31, 2019, the Company did recognize impairment of property, plant, and equipment during the year ended December 31, 2020 and impairment of certain intangible assets and property, plant, and equipment during the yearsyear ended December 31, 2018, 2017 and 2016.2018. The Company uses unobservable inputs, classified as Level 3 inputs, in determining the fair value of these assets. See Note 7 "Goodwill and Related Intangible Assets" and Note 14 of the consolidated financial statements15 "Exit Activity Costs and Asset Impairments" for more disclosure regarding the impairment of certain intangible assets and property, plant, and equipment, respectively.


The Company also applied fair value principles for the goodwill impairment tests performed during 2018, 2017,2020, 2019, and 2016.2018. The Company used two valuation models to estimate the fair values of its reporting units, both of which primarily use Level 3 inputs. See Note 7 of the consolidated financial statements for the results of the Company’s goodwill impairment tests.



Additionally, the Company's recent acquisition activity, as described in Note 6 of the consolidated financial statements,"Acquisitions", used Level 3 inputs to estimate fair values allocated to the assets acquired and liabilities assumed.

(14) DISCONTINUED OPERATIONS

During the fourth quarter of 2020, the Company committed to a plan to dispose its Industrial business as a result of its portfolio management strategy to focus on participation in higher value and faster growing markets. The Industrial business, previously reported in the Company's Industrial and Infrastructure Products segment, has been classified as held for sale. Accordingly, the results of operations and financial position of the held for sale Industrial business have been presented as a discontinued operation in the Company's consolidated financial statements for all periods presented. The assets and liabilities of discontinued operations held for sale are presented as current respectively at December 31, 2020 as it is probable that the disposal by sale will occur and proceeds will be collected within one year.

The Company allocates interest to its discontinued operations in accordance with ASC Subtopic 205-20, “Presentation of Financial Statements – Discontinued Operations.” Interest was allocated based on the amount of net assets held by the discontinued operation in comparison to consolidated net assets.

The following carrying amounts of the major classes of assets and liabilities included in discontinued operations related to the Industrial business has been segregated from the Company's continuing operations and are reported
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as assets and liabilities of discontinued operations held for sale. respectively, in the consolidated balance sheets at December 31, (in thousands):
20202019
Assets
Accounts receivable, net$11,261 $13,620 
Inventories, net13,041 16,519 
Prepaid expenses and other current assets21,310 789 
Total current assets (1)45,612 30,928 
Property, plant, and equipment, net16,999 17,257 
Operating lease assets6,470 6,461 
Goodwill22,475 22,350 
Acquired intangibles15,482 15,858 
Loss recognized on classification as held for sale(29,600)
Total noncurrent assets (1)31,826 61,926 
Total assets classified as held for sale$77,438 $92,854 
Liabilities
Accounts payable$10,708 $10,508 
Accrued expenses9,274 11,866 
Total current liabilities (1)19,982 22,374 
Deferred income taxes24,657 4,930 
Non-current operating lease liabilities4,639 4,726 
Other non-current liabilities17 14 
Total noncurrent liabilities (1)29,313 9,670 
Total liabilities classified as held for sale$49,295 $32,044 

(1) The assets and liabilities of the disposal group classified as held for sale are classified as current on the December 31, 2020 consolidated balance sheet because it is probable that the sale will occur and proceeds will be collected within one year.

Components of the (loss) income from discontinued operations before taxes, including the interest allocated to discontinued operations, for the years ended December 31 were as follows (in thousands):
202020192018
Net sales$128,915 $150,225 $166,378 
Operating expenses115,822 143,335 151,924 
Loss on classification as held for sale29,600 
Interest expense allocation95 208 1,632 
(Loss) income from discontinued operations before taxes$(16,602)$6,682 $12,822 
(15) EXIT ACTIVITY COSTS AND ASSET IMPAIRMENTS


The Company has incurred exit activity costs and asset impairment charges as a result of its 80/20 simplification and portfolio management initiatives. These initiatives have resulted in the identification of low-volume, low margin, internally-produced products which have been or will be outsourced or discontinued, the simplification of processes, and in the sale and exiting of less profitable businesses or products lines.lines, and the reduction in our manufacturing footprint.
Exit activity costs were incurred during 2018 which2020 related to contract terminations, severance, and other moving and closing costs. During this time, the Company alsocosts, severance and contract terminations incurred asset impairment charges related to the write-downas a result of inventory, impairment of machinery and equipment and intangible assets associated with either discontinued product lines or reduced sales of lower margin products.process simplification initiatives. In conjunction with these initiatives, in 2020, the Company alsoclosed 2 facilities and, separately, sold a facility closed in 2017. The Company closed and
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consolidated 1 facility during 2019. In 2018, the Company sold and leased back a facility which resulted in a gain, as well asand closed and consolidated four other facilities in 2018.
The Company closed and consolidated three facilities during 2017 and seven facilities during 2016 as a result of these initiatives, whichfacilities. These closures resulted in asset impairment charges and exit activity costs in both years.costs.
The following table sets forth the asset impairment charges and exit activity costs incurred by segment during the years ended December 31 related to the restructuring activities described above (in thousands):
202020192018
2018 2017 2016Inventory write-downs &/or asset impairment chargesExit activity costsTotalInventory write-downs &/or asset impairment (recoveries) charges, netExit activity costsTotalInventory write-downs &/or asset impairment chargesExit activity (recoveries) costs, netTotal
Inventory write-downs &/or asset impairment charges (recoveries), net Exit activity costs (recoveries), net Total Inventory write-downs &/or asset impairment charges (recoveries), net Exit activity costs Total Inventory write-downs &/or asset impairment charges Exit activity costs Total
Renewable Energy & ConservationRenewable Energy & Conservation$72 $875 $947 $(9)$66 $57 $105 $(33)$72 
Residential Products$1,586
 $1,321
 $2,907
 $345
 $1,058
 $1,403
 $1,459
 $1,074
 $2,533
Residential Products731 740 417 3,440 3,857 1,586 1,321 2,907 
Industrial & Infrastructure Products(347) 1,749
 1,402
 (2,484) 2,820
 336
 4,221
 4,546
 8,767
Renewable Energy & Conservation105
 (33) 72
 509
 2,986
 3,495
 1,850
 539
 2,389
Infrastructure ProductsInfrastructure Products226 226 227 1,075 1,302 
Corporate
 438
 438
 
 261
 261
 
 58
 58
Corporate375 375 1,660 1,660 438 438 
Total exit activity costs & asset impairments$1,344
 $3,475
 $4,819
 $(1,630) $7,125
 $5,495
 $7,530
 $6,217
 $13,747
Total exit activity costs & asset impairments$81 $2,207 $2,288 $408 $5,166 $5,574 $1,918 $2,801 $4,719 
The following table provides a summary of where the above exit activity costs and asset impairments are recorded in the consolidated statements of operations for the years ended December 31 (in thousands):
2018 2017 2016202020192018
Cost of sales$1,906
 $911
 $9,922
Cost of sales$1,059 $767 $1,320 
Selling, general, and administrative expense2,913
 4,584
 3,825
Selling, general, and administrative expense1,229 4,807 3,399 
Total exit activity costs and asset impairments$4,819
 $5,495
 $13,747
Total exit activity costs and asset impairments$2,288 $5,574 $4,719 
The following table reconciles the beginning and ending liability for exit activity costs relating to the Company’s facility consolidation efforts (in thousands):
20202019
Balance as of January 1$2,083 $1,865 
Exit activity costs recognized2,207 5,166 
Cash payments(3,260)(3,799)
Non-cash charges(1,149)
Balance as of December 31$1,030 $2,083 
 2018 2017
Balance as of January 1$961
 $3,744
Exit activity costs recognized3,475
 7,125
Cash payments(2,513) (9,908)
Balance as of December 31$1,923
 $961


DuringOn June 30, 2020, the three years ended December 31, 2018, noneCompany sold its self-guided apartment tour application business to a third party from its Residential Products segment. The $2.0 million net proceeds from the sale resulted in pre-tax net gain of $1.9 million and has been presented within other (income) expense in the Company's exit activities metconsolidated statements of income. This divestiture does not meet the criteria to be reported as a discontinued operations, as these actions do not represent a strategic shift that has oroperation nor will it have a major effect on the Company’sCompany's operations. Therefore, prior period results of continuing operations have not been restated to exclude the impact of any divested business’s financial results.

(15)
(16) INCOME TAXES


The Company uses the asset and liability method of accounting for income taxes. Under this method, deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax basis. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to reverse.

On December 22, 2017, the President of the United States signed into law the Tax Cuts and Jobs Act (“Tax Reform Act”). The legislation significantly changed U.S. tax law by, among other things, lowering corporate income tax rates, assessing a one-time transition tax on a deemed repatriation of non-previously taxed earnings of foreign subsidiaries, and implementing a territorial tax system.

While the Tax Reform Act provides for a territorial tax system, beginning in 2018, it includes two new U.S. tax base erosion provisions, the global intangible low-taxed income (“GILTI”) provisions and the base-erosion and anti-abuse tax (“BEAT”) provisions.

The GILTI provisions require the Company to include in its U.S. income tax return any foreign subsidiary earnings in excess of an allowable return on the foreign subsidiary’s tangible assets. The Company recorded $0.1 million of income tax expense as a result of GILTI for the year ended December 31, 2018. The Company has elected to account for GILTI tax in the period in which it is incurred, and therefore has not provided any deferred tax impacts of GILTI in its consolidated financial statements for the years ended December 31, 2018 and 2017.

The BEAT provisions in the Tax Reform Act eliminate the deduction of certain base-erosion payments made to related foreign corporations, and impose a minimum tax if greater than regular tax. The BEAT tax had no impact on the Company's consolidated financial statements for the years ended December 31, 2018 and 2017.

On December 22, 2017, the SEC staff issued Staff Accounting Bulletin No. 118 (“SAB 118”) to address the application of U.S. GAAP in situations when a registrant does not have the necessary information available, prepared, or analyzed (including computations) in reasonable detail to complete the accounting for certain income tax effects of the Tax Reform Act. At December 31, 2017, the Company recorded a provisional $3.9 million of income tax expense as a result of the transition tax, and $16.2 million income tax benefit related to the remeasurement of deferred income taxes. At December 31, 2017 the Company recorded no provisional expense related to performance-based executive compensation based on the guidance available at that time.

We have completed our analysis of the one-time transition tax, performance-based executive compensation and the remeasurement of our deferred assets and liabilities as of December 31, 2018.

During the year ended December 31, 2018, the Company recognized an adjustment to the provisional amounts recorded at December 31, 2017. The following table sets forth the components of the adjustment which were recorded in income tax expense from continuing operations during year ended December 31, 2018, (in thousands):


67

Remeasurement of certain deferred tax balances (1)174
One-time transition tax (1)(94)
Non-deductible performance based compensation (2)145
Net adjustment recorded to provisional income tax expense (3)225

(1) Amounts primarily related to return to provision adjustments.

(2) Amounts primarily related to further guidanceTable of Notice 2018-68 (guidance on performance-based compensation issued in the third quarter ended September 30, 2018).Contents

(3) The impact of the adjustment to the provisional amounts recorded at December 31, 2017 is 0.3%.

The components of income (loss) before taxes from continuing operations consisted of the following for the years ended December 31 (in thousands):
2018 2017 2016202020192018
Domestic$76,953
 $78,468
 $37,316
Domestic$108,930 $78,351 $70,783 
Foreign2,992
 (560) 12,667
Foreign(1,171)(270)(3,660)
Income before taxes from continuing operations$79,945
 $77,908
 $49,983
Income before taxes from continuing operations$107,759 $78,081 $67,123 
The provision for (benefit of) income taxes from continuing operations for the years ended December 31 consisted of the following (in thousands):
202020192018
Current:
U.S. Federal$16,505 $10,394 $8,316 
State4,071 3,547 2,942 
Foreign106 92 (2,972)
Total current20,682 14,033 8,286 
Deferred:
U.S. Federal3,620 3,740 4,253 
State672 486 853 
Foreign(506)(106)(381)
Total deferred3,786 4,120 4,725 
Provision for income taxes$24,468 $18,153 $13,011 
 2018 2017 2016
Current:     
U.S. Federal$9,402
 $16,882
 $14,703
State3,144
 2,479
 2,987
Foreign(1,191) 2,687
 3,467
Total current11,355
 22,048
 21,157
Deferred:     
U.S. Federal4,158
 (7,466) (5,404)
State1,047
 1,246
 1,595
Foreign(424) (885) (1,084)
Total deferred4,781
 (7,105) (4,893)
Provision for income taxes$16,136
 $14,943
 $16,264


The benefit ofprovision for (benefit of) income taxes from discontinued operations for the years ended December 31 consisted of the following (in thousands):
202020192018
Current:
U.S. Federal$1,345 $885 $1,086 
State57 202 
Foreign1,725 1,447 1,781 
Total current3,127 2,336 3,069 
Deferred:
U.S. Federal(876)(823)(95)
State10 23 194 
Foreign(138)(17)(43)
Total deferred(1,004)(817)56 
Provision for income taxes$2,123 $1,519 $3,125 
68

 2018 2017 2016
Current:     
U.S. Federal$
 $219
 $24
State
 20
 2
Foreign
 
 
Benefit of income taxes$
 $239
 $26
Table of Contents

The provision for income taxes from continuing operations differs from the federal statutory rate of 21% fordue to the year ended December 31, 2018 and 35%following (in thousands) for the years ended December 31, 2017 and 2016 due to the following (in thousands):31:
2018 2017 2016 202020192018
Statutory rate16,788
 21.0 % 27,268
 35.0 % 17,494
 35.0 %Statutory rate22,629 21.0 %16,397 21.0 %14,096 21.0 %
State taxes, less federal effect3,242
 4.1 % 2,442
 3.1 % 3,033
 6.1 %State taxes, less federal effect3,650 3.4 %3,194 4.1 %2,901 4.3 %
Federal tax credits(3,680) (4.6)% (373) (0.5)% (439) (0.9)%Federal tax credits(1,064)(1.0)%(1,621)(2.1)%(742)(1.1)%
Excess tax benefit on stock based compensationExcess tax benefit on stock based compensation(1,674)(1.6)%(871)(1.1)%(2,224)(3.3)%
Uncertain tax positions(3,051) (3.8)% (148) (0.2)% (154) (0.3)%Uncertain tax positions%(260)(0.3)%(3,051)(4.5)%
Excess tax benefit on stock based compensation(2,288) (2.9)% (1,415) (1.8)% 
  %
Net operating loss (NOL) write down1,640
 2.1 % 
  % 
  %
Executive compensation1,369
 1.7 % 160
 0.2 % 75
 0.2 %Executive compensation1,114 1.0 %1,132 1.4 %1,369 2.0 %
Change in valuation allowance844
 1.1 % 660
 0.8 % 685
 1.4 %Change in valuation allowance(130)(0.1)%88 0.1 %(1,694)(2.5)%
Net operating loss (NOL) write downNet operating loss (NOL) write down%%1,640 2.4 %
Change in Indemnification Asset643
 0.8 % 
  % 
  %Change in Indemnification Asset%%643 1.0 %
Tax effect of Tax Reform Act
  % (12,535) (16.1)% 
  %
Domestic manufacturer's deduction
  % (1,578) (2.0)% (1,363) (2.7)%
Intercompany debt discharge
  % 
  % (2,389) (4.8)%
Worthless stock deduction
  % 
  % (868) (1.7)%
Other629
 0.7 % 462
 0.7 % 190
 0.2 %Other(57)%94 0.1 %73 0.1 %
$16,136
 20.2 % $14,943
 19.2 % $16,264
 32.5 %
$24,468 22.7 %$18,153 23.2 %$13,011 19.4 %
Deferred tax liabilities (assets) at December 31 consist of the following (in thousands):
20202019
Depreciation$7,697 $7,556 
Goodwill41,842 38,610 
Intangible assets5,632 6,171 
Other6,878 6,158 
Gross deferred tax liabilities62,049 58,495 
Equity compensation(7,496)(9,530)
Other(15,682)(13,939)
Gross deferred tax assets(23,178)(23,469)
Valuation allowances111 298 
Deferred tax assets, net of valuation allowances(23,067)(23,171)
Net deferred tax liabilities$38,982 $35,324 
 2018 2017
Depreciation$9,886
 $9,563
Goodwill35,813
 32,662
Intangible assets9,907
 10,928
Foreign withholding tax1,182
 1,014
Other696
 652
Gross deferred tax liabilities57,484
 54,819
Equity compensation(10,420) (12,577)
Other(13,529) (13,247)
Gross deferred tax assets(23,949) (25,824)
Valuation allowances2,995
 2,242
Deferred tax assets, net of valuation allowances(20,954) (23,582)
Net deferred tax liabilities$36,530
 $31,237


At December 31, 2018,2020, the Company had total net operating loss carry forwards of $11.9$14.7 million, which included $0.6$0.5 million for federal, $9.6$10.2 million for state, and $1.7$4.0 million for foreign income tax purposes. The federal and state net operating loss carry forwards expire between 20192021 and 2038.2040. The foreign net operating loss carry forwards expire between 2022 and 2026.2040. The Company recognized a total of $1.2$1.5 million of deferred tax assets, net of the federal tax benefit, related to these net operating losses prior to any valuation allowances, which included $0.1 million of federal $0.6and $0.3 million of state deferred tax assets and $0.5$1.1 million of foreign deferred tax assets.

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Deferred taxes include net deferred tax assets relating to certain state and foreign tax jurisdictions. A reduction of the carrying amount of deferred tax assets by a valuation allowance is required if it is more likely than not that such assets will not be realized. The valuation allowances on theCompany derecognized net operating loss carry forwards, and the corresponding valuation allowances of $1.7 million in Germany and Brazil were reversed since weit exited both markets.markets in 2018. In 2019, a valuation allowance was recorded in China. In 2020, the valuation allowance in China was reversed and a tax attribute valuation allowance was also reversed as the Company expects to utilize the attribute. The following sets forth a reconciliation of the beginning and ending amount of the Company’s valuation allowance (in thousands):
202020192018
Balance as of January 1$298 $206 $2,002 
Cost charged to the tax provision70 100 45 
Reductions(248)(10)(1,747)
Currency translation(9)(94)
Balance as of December 31$111 $298 $206 
 2018 2017 2016
Balance as of January 1$2,242
 $1,362
 $766
Cost charged to the tax provision2,597
 1,505
 983
Reductions(1,750) (820) (338)
Currency translation(94) 195
 (49)
Balance as of December 31$2,995
 $2,242
 $1,362
Interest (net of federal tax benefit) and penalties recognized during the years ended December 31 were (in thousands):
202020192018
Interest and penalties recognized as income13 
The Company made net payments for income taxes for the following amounts for the years ended December 31 (in thousands):
 2018 2017 2016
Payments made for income taxes, net$15,167
 $26,186
 $17,700
202020192018
Payments made for income taxes, net$21,351 $16,744 $14,128 
At December 31, 2018,2020, the Company had approximately $30.0$0.2 million of undistributed earnings of foreign subsidiaries. The Company expects to execute a one-time repatriation of $22.5 million in cash to the U.S., net of withholding tax. The funds will be used for general corporate purposes. The Company continues to maintain its assertion that all remaining foreign earnings will be indefinitely reinvested. Any excess earnings could be used to grow the Company's foreign operations through launches of new capital projects or additional acquisitions. Determination of the amount of unrecognized deferred U.S. income tax liability related to our remaining unremitted foreign earnings is not practicable due to the complexities associated with its hypothetical calculation.
A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows (in thousands):
2018 2017 2016202020192018
Balance as of January 1$3,536
 $3,466
 $3,876
Balance as of January 1$$329 $3,536 
Additions for tax positions of the current year15
 99
 33
Additions for tax positions of the current year15 
Additions for tax positions of prior years
 
 
Additions for tax positions of prior years
Reductions for tax positions of prior years for:     Reductions for tax positions of prior years for:
Settlements and changes in judgment
 (422) (256)Settlements and changes in judgment
Lapses of applicable statute of limitations(3,060) 
 
Lapses of applicable statute of limitations(329)(3,060)
Divestitures and foreign currency translation(162) 393
 (187)Divestitures and foreign currency translation(162)
Balance as of December 31$329
 $3,536
 $3,466
Balance as of December 31$$$329 
In 2018 and 2017,2020, the Company did not have any unrecognized tax benefitsbenefits. In 2019, unrecognized tax benefit of $0.3 million and $3.5 million, respectively, would affect the effective tax rate, if recognized as of December 31, 2018 and 2017. $3.1 million of unrecognized tax benefits related to the acquisition was reversed in 2018 as a result of the lapse of the statute of limitations. TheIn 2018, the corresponding indemnification asset was also reversed in pretax income. The Company classifies accrued interest and penalties related to unrecognized tax benefits in income tax expense.
The Company and its U.S. subsidiaries file a U.S. federal consolidated income tax return. Foreign and U.S. state jurisdictions have statute of limitations generally ranging from four to ten years. The Company's U.S. federal consolidated income tax return is under examination for 2015 and remains subject to examination for 2016 and 2017.
Interest (net of federal tax benefit) and penalties recognized during the years ended December 31 were (in thousands):through 2018.
70
 2018 2017 2016
Interest and penalties recognized as income$13
 $130
 $122

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(16)(17) EARNINGS PER SHARE
Basic earnings per share is based on the weighted average number of common shares outstanding. Diluted earnings per share is based on the weighted average number of common shares outstanding, as well as dilutive common shares which include shares issuable under the equity compensation plans described in Note 12 of the consolidated financial statements. The weighted average number of diluted shares does not include potential anti-dilutive common shares aggregating 303,000, 468,00013,000, 30,000 and 653,000303,000 at December 31, 2018, 20172020, 2019 and 2016,2018, respectively. The treasury stock method is used to calculate dilutive shares, which reduces the gross number of dilutive shares by the number of shares purchasable from the proceeds of the options assumed to be exercised and the unrecognized expense related to the options, restricted shares, restricted stock units, and performance stock units assumed to have vested.


Basic earningsWeighted average shares outstanding for basic and diluted weighted-average shares outstandingearnings are as follows for the years ended December 31 (in thousands):
202020192018
Numerator:
Income from continuing operations$83,291 $59,928 $54,112 
(Loss) income from discontinued operations(18,725)5,163 9,697 
Net income available to common shareholders$64,566 $65,091 $63,809 
Denominator for basic earnings per share:
Weighted average shares outstanding32,664 32,389 31,979 
Denominator for diluted earnings per share:
Common stock options and stock units254 333 555 
Weighted average shares and conversions32,918 32,722 32,534 


(18) LEASES

The Company's leases are classified as operating leases and consist of manufacturing facilities, distribution centers, office space, vehicles and equipment.

Most of the Company's leases include one or more options to renew, with renewal terms that can extend the respective lease term from one month to fifteen years. The exercise of lease renewal options is at the Company's sole discretion. As of December 31, 2020, the Company's renewal options are not part of the Company's operating lease assets and operating lease liabilities. Certain leases also include options to purchase at fair value the underlying leased asset at the Company's sole discretion.

Amounts recognized in the Company's consolidated balance sheet at December 31 were as follows (in thousands):
20202019
AssetsOperating lease assets$25,229 $21,201 
Liabilities
CurrentAccrued expenses$8,034 $6,487 
Non-currentNon-current operating lease liabilities17,730 14,943 
$25,764 $21,430 

Lease costs and other lease information for the year ended December 31 were as follows (in thousands):
20202019
Operating lease cost$11,001 $10,441 
Cash paid for amounts included in the measurement of operating liabilities$9,502 $9,238 
Right-of-use assets obtained in exchange for new lease liabilities$12,745 $6,364 

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 2018 2017 2016
Numerator:     
Income from continuing operations$63,809
 $62,965
 $33,719
Loss from discontinued operations
 (405) (44)
Net income available to common shareholders$63,809
 $62,560
 $33,675
Denominator for basic earnings per share:     
Weighted average shares outstanding31,979
 31,701
 31,536
Denominator for diluted earnings per share:     
Common stock options and stock units555
 549
 533
Weighted average shares and conversions32,534
 32,250
 32,069
Lease Term and Discount RateDecember 31, 2020December 31, 2019
Weighted-average remaining lease term - operating leases3.6years3.8years
Weighted-average discount rate - operating leases5.2 %5.7 %

Maturity of lease liabilities(In thousands)
2021$9,139 
20227,635 
20236,483 
20243,298 
20251,043 
After 2025673 
Total lease payments28,271 
Less: present value discount(2,507)
Present value of lease liabilities$25,764 

(17) COMMITMENTS AND CONTINGENCIES
The Company uses the its incremental borrowing rate based on information available at the commencement date of a lease in determining the present value of lease payments as the rates implicit in most of the Company's leases certain facilities and equipment under operating leases. As leases expire, it can be expected that, in the normal courseare not readily determinable.

Upon adoption of business, certain leases will be renewed or replaced. Certain lease agreements include escalating rent payments over the lease terms. The Company expenses rentASU 2016-02 on January 1, 2019, an unrecognized deferred gain of $1.6 million related to sale-leaseback transactions was recorded as a straight-line basis over the lease term which commences on the date the Company has the rightcumulative-effect adjustment to control the property. increase retained earnings, net of related income tax effects.

Rent expense under operating leases aggregated to $9.7 million for the yearsyear ended December 31, aggregated (in thousands):2018.
 2018 2017 2016
Rent expense$12,571
 $11,964
 $13,652

Future minimum lease payments under these noncancelable operating leases as of December 31, 2018 are as follows (in thousands):
 2019 2020 2021 2022 2023 Thereafter
Future minimum lease payments14,304
 8,156
 5,910
 4,566
 4,043
 1,705

(19) COMMITMENTS AND CONTINGENCIES
The Company is a party to certain claims and legal actions generally incidental to its business. For certain divestiture transactions completed in prior years, the Company has agreed to indemnify the buyer for various liabilities that may arise after the disposal date, subject to limits of time and amount.date. The Company is a party to certain claims made under these indemnification provisions. As of December 31, 2018,2020, the Company has a contingent liability recorded for such provisions related to discontinued operations. Management does not believe that the outcome of this claim, or other claims which are not clearly determinable at the present time, would significantly affect the Company's financial condition or results of operation.



(18)(20) SEGMENT INFORMATION
The Company is organized into three3 reportable segments on the basis of the production process andprocesses, products and services provided by each segment, identified as follows:


(i)Residential Products, which primarily includes roof and foundation ventilation products, rain dispersion products and roofing accessories, centralized mail systems and electronic package solutions;
(ii)Industrial and Infrastructure Products, which primarily includes expanded and perforated metal, perimeter security systems, expansion joints, and structural bearings; and
(iii)Renewable Energy and Conservation, which primarily includes designing, engineering, manufacturing and installation of solar racking and electrical balance of systems and greenhouse structures.
(i)Renewable Energy and Conservation, which primarily includes designing, engineering, manufacturing and installation of solar racking, electrical balance of systems, extraction systems and greenhouse structures;
(ii)Residential Products, which primarily includes roof and foundation ventilation products, rain dispersion products and roofing accessories, centralized mail systems and electronic package solutions; and
(iii)Infrastructure Products, which primarily includes expansion joints, structural bearings, rubber pre-formed seals and other sealants, elastomeric concrete, and bridge cable protection systems.
When determining the reportable segments, the Company aggregated operating segments based on their similar economic and operating characteristics.


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The following table illustrates certain measurements used by management to assess the performance of the segments described above as of and for the years ended December 31 (in thousands):
202020192018
Net sales:
Renewable Energy and Conservation$447,567 $373,023 $317,253 
Residential Products522,814 461,630 463,216 
Infrastructure Products62,197 63,580 56,628 
Total consolidated net sales$1,032,578 $898,233 $837,097 
Income from operations:
Renewable Energy and Conservation$40,738 $47,558 $37,423 
Residential Products94,430 63,047 69,838 
Infrastructure Products7,233 6,428 2,509 
Segments income from operations142,401 117,033 109,770 
Unallocated corporate expenses(35,211)(36,221)(28,629)
Total income from operations$107,190 $80,812 $81,141 
Depreciation and Amortization
Renewable Energy and Conservation$9,445 $6,132 $5,790 
Residential Products8,110 7,906 8,217 
Infrastructure Products3,060 3,129 3,100 
Unallocated corporate expenses300 390 332 
$20,915 $17,557 $17,439 
Total assets
Renewable Energy and Conservation$619,071 $246,853 $218,048 
Residential Products407,132 359,657 361,499 
Infrastructure Products80,796 110,611 114,354 
Unallocated corporate assets28,057 174,475 271,616 
Assets of discontinued operations77,438 92,854 96,128 
$1,212,494 $984,450 $1,061,645 
Capital expenditures
Renewable Energy and Conservation$1,143 $2,199 $1,345 
Residential Products3,313 4,968 7,921 
Infrastructure Products1,511 1,028 927 
Unallocated corporate expenditures7,101 581 175 
$13,068 $8,776 $10,368 





73

 2018 2017 2016
Net sales:     
Residential Products$463,216
 $466,603
 $430,938
Industrial and Infrastructure Products223,006
 215,211
 296,513
Less: Intersegment sales(1,103) (1,247) (1,495)
 221,903
 213,964
 295,018
Renewable Energy and Conservation317,253
 306,351
 282,025
Total consolidated net sales$1,002,372
 $986,918
 $1,007,981
      
Income from operations:     
Residential Products$69,838
 $76,893
 $65,241
Industrial and Infrastructure Products15,336
 8,159
 1,306
Renewable Energy and Conservation37,423
 30,218
 43,214
Segments income from operations122,597
 115,270
 109,761
Unallocated corporate expenses(28,629) (22,421) (36,273)
Total income from operations$93,968
 $92,849
 $73,488
      
Depreciation and Amortization     
Residential Products$8,217
 $9,183
 $9,297
Industrial and Infrastructure Products6,035
 6,529
 8,237
Renewable Energy and Conservation5,790
 5,657
 6,203
Unallocated corporate expenses332
 321
 377
 $20,374
 $21,690
 $24,114
Total assets     
Residential Products$361,499
 $358,838
 $331,975
Industrial and Infrastructure Products210,482
 203,455
 225,691
Renewable Energy and Conservation218,048
 219,806
 207,241
Unallocated corporate assets271,616
 209,286
 153,338
 $1,061,645
 $991,385
 $918,245
Capital expenditures     
Residential Products$7,921
 $5,236
 $5,182
Industrial and Infrastructure Products3,016
 2,094
 2,060
Renewable Energy and Conservation1,345
 3,648
 3,160
Unallocated corporate expenditures175
 421
 377
 $12,457
 $11,399
 $10,779
Table of Contents









The following tables illustrate revenue disaggregated by timing of transfer of control to the customer for the years ended December 31 (in thousands):
2020
Renewable Energy and ConservationResidential ProductsInfrastructure ProductsTotal
Net sales:
Point in Time$75,727 $518,281 $22,781 $616,789 
Over Time371,840 4,533 39,416 415,789 
Total$447,567 $522,814 $62,197 $1,032,578 
2019
Renewable Energy and ConservationResidential ProductsInfrastructure ProductsTotal
Net sales:
Point in Time$42,596 $458,006 $26,490 $527,092 
Over Time330,427 3,624 37,090 371,141 
Total$373,023 $461,630 $63,580 $898,233 
2018
Renewable Energy and ConservationResidential ProductsInfrastructure ProductsTotal
Net sales:
Point in Time$33,427 $460,513 $22,806 $516,746 
Over Time283,826 2,703 33,822 320,351 
Total$317,253 $463,216 $56,628 $837,097 
 2018
 Residential Products Industrial and Infrastructure Products Renewable Energy and Conservation Total
Net sales:       
Point in Time$460,513
 $188,081
 $33,427
 $682,021
Over Time2,703
 33,822
 283,826
 320,351
Total$463,216
 $221,903
 $317,253
 $1,002,372
        
 2017
 Residential Products Industrial and Infrastructure Products Renewable Energy and Conservation Total
Net sales:       
Point in Time$466,603
 $213,964
 $30,137
 $710,704
Over Time
 
 276,214
 276,214
Total$466,603
 $213,964
 $306,351
 $986,918
        
 2016
 Residential Products Industrial and Infrastructure Products Renewable Energy and Conservation Total
Net sales:       
Point in Time$430,938
 $295,018
 $21,566
 $747,522
Over Time
 
 260,459
 260,459
Total$430,938
 $295,018
 $282,025
 $1,007,981



Net sales by region or origin and long-lived assets by region of domicile for the years ended and as of December 31 are as follows (in thousands):
202020192018
Net sales
North America$1,018,406 $881,432 $825,497 
Asia14,172 16,801 11,600 
Total$1,032,578 $898,233 $837,097 
Long-lived assets
North America$90,685 $79,590 $79,544 
Asia476 542 704 
Total$91,161 $80,132 $80,248 





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Table of Contents
 2018 2017 2016
Net sales     
North America$990,772
 $977,942
 $963,797
Europe
 1,131
 19,447
Asia11,600
 7,845
 24,737
Total$1,002,372
 $986,918
 $1,007,981
      
Long-lived assets     
North America$96,342
 $97,956
 $108,334
Europe
 3,222
 2,900
Asia704
 601
 992
Total$97,046
 $101,779
 $112,226





(19) SUPPLEMENTAL FINANCIAL INFORMATION
The following information sets forth the consolidating summary financial statements of the issuer (Gibraltar Industries, Inc.) and guarantors, which guarantee the Senior Subordinated 6.25% Notes due February 1, 2021, and the non-guarantors. The guarantors are 100% owned domestic subsidiaries of the issuer and the guarantees are full, unconditional, joint and several.
Investments in subsidiaries are accounted for by the parent using the equity method of accounting. The guarantor subsidiaries and non-guarantor subsidiaries are presented on a combined basis. The principal elimination entries eliminate investments in subsidiaries and intercompany balances and transactions.

GIBRALTAR INDUSTRIES, INC.
CONSOLIDATING STATEMENT OF OPERATIONS
YEAR ENDED DECEMBER 31, 2018
(in thousands)
 
Gibraltar
Industries, Inc.
 
Guarantor
Subsidiaries
 
Non-Guarantor
Subsidiaries
 Eliminations Total
Net sales$
 $960,142
 $64,090
 $(21,860) $1,002,372
Cost of sales
 728,187
 52,857
 (21,032) 760,012
Gross profit
 231,955
 11,233
 (828) 242,360
Selling, general, and administrative expense151
 139,726
 6,963
 
 146,840
Intangible asset impairment
 615
 937
 
 1,552
(Loss) income from operations(151) 91,614
 3,333
 (828) 93,968
Interest expense (income)13,609
 (1,279) (266) 
 12,064
Other expense (income)
 3,396
 (1,437) 
 1,959
(Loss) income before taxes(13,760) 89,497
 5,036
 (828) 79,945
(Benefit of) provision for income taxes(3,853) 18,544
 1,445
 
 16,136
Equity in earnings from subsidiaries74,544
 3,591
 
 (78,135) 
Net income$64,637
 $74,544
 $3,591
 $(78,963) $63,809


GIBRALTAR INDUSTRIES, INC.
CONSOLIDATING STATEMENT OF OPERATIONS
YEAR ENDED DECEMBER 31, 2017
(in thousands)
 Gibraltar
Industries, Inc.
 Guarantor
Subsidiaries
 Non-Guarantor
Subsidiaries
 Eliminations Total
Net sales$
 $947,604
 $52,738
 $(13,424) $986,918
Cost of sales
 719,587
 43,187
 (12,400) 750,374
Gross profit
 228,017
 9,551
 (1,024) 236,544
Selling, general, and administrative expense147
 133,409
 9,892
 
 143,448
Intangible asset impairment
 200
 47
 
 247
(Loss) income from operations(147) 94,408
 (388) (1,024) 92,849
Interest expense (income)13,609
 512
 (89) 
 14,032
Other expense
 500
 409
 
 909
(Loss) income before taxes(13,756) 93,396
 (708) (1,024) 77,908
(Benefit of) provision for income taxes(5,079) 19,787
 235
 
 14,943
(Loss) income from continuing operations(8,677) 73,609
 (943) (1,024) 62,965
Discontinued operations:         
Loss before taxes
 (644) 
 
 (644)
Benefit of income taxes
 (239) 
 
 (239)
Loss from discontinued operations
 (405) 
 
 (405)
Equity in earnings from subsidiaries72,261
 (943) 
 (71,318) 
Net income (loss)$63,584
 $72,261
 $(943) $(72,342) $62,560






















GIBRALTAR INDUSTRIES, INC.
CONSOLIDATING STATEMENT OF OPERATIONS
YEAR ENDED DECEMBER 31, 2016
(in thousands)

 Gibraltar
Industries, Inc.
 Guarantor
Subsidiaries
 Non-Guarantor
Subsidiaries
 Eliminations Total
Net sales$
 $950,945
 $78,184
 $(21,148) $1,007,981
Cost of sales
 722,315
 62,729
 (21,825) 763,219
Gross profit
 228,630
 15,455
 677
 244,762
Selling, general, and administrative expense14,302
 137,343
 9,454
 
 161,099
Intangible asset impairment
 7,980
 2,195
 
 10,175
(Loss) income from operations(14,302) 83,307
 3,806
 677
 73,488
Interest expense (income)13,609
 1,042
 (74) 
 14,577
Other expense (income)8,716
 512
 (300) 
 8,928
(Loss) income before taxes(36,627) 81,753
 4,180
 677
 49,983
(Benefit of) provision for income taxes(11,768) 27,551
 481
 
 16,264
(Loss) income from continuing operations(24,859) 54,202
 3,699
 677
 33,719
Discontinued operations:         
Loss before taxes
 (70) 
 
 (70)
Benefit of income taxes
 (26) 
 
 (26)
Loss from discontinued operations
 (44) 
 
 (44)
Equity in earnings from subsidiaries57,857
 3,699
 
 (61,556) 
Net income$32,998
 $57,857
 $3,699
 $(60,879) $33,675


GIBRALTAR INDUSTRIES, INC.
CONSOLIDATING STATEMENTS OF COMPREHENSIVE INCOME
(in thousands)
 
Gibraltar
Industries, Inc.
 
Guarantor
Subsidiaries
 
Non-Guarantor
Subsidiaries
 Eliminations Total
Year ended December 31, 2018         
Net income$64,637
 $74,544
 $3,591
 $(78,963) $63,809
Other comprehensive income:         
Foreign currency translation adjustment
 
 (3,241) 
 (3,241)
Cumulative effect of accounting change (see Note 2)
 (350) 
 
 (350)
Adjustment to pension and post-retirement benefit liability, net of tax
 723
 
 
 723
Other comprehensive income (loss)
 373
 (3,241) 
 (2,868)
Total comprehensive income$64,637
 $74,917
 $350
 $(78,963) $60,941

 
Gibraltar
Industries, Inc.
 
Guarantor
Subsidiaries
 
Non-Guarantor
Subsidiaries
 Eliminations Total
Year ended December 31, 2017         
Net income (loss)$63,584
 $72,261
 $(943) $(72,342) $62,560
Other comprehensive income:         
Foreign currency translation adjustment
 
 3,150
 
 3,150
Adjustment to pension and post-retirement benefit liability, net of tax
 205
 
 
 205
Other comprehensive income
 205
 3,150
 
 3,355
Total comprehensive income$63,584
 $72,466
 $2,207
 $(72,342) $65,915

 
Gibraltar
Industries, Inc.
 
Guarantor
Subsidiaries
 
Non-Guarantor
Subsidiaries
 Eliminations Total
Year ended December 31, 2016         
Net income$32,998
 $57,857
 $3,699
 $(60,879) $33,675
Other comprehensive income:         
Foreign currency translation adjustment
 
 6,945
 
 6,945
Adjustment to pension and post-retirement benefit liability, net of tax
 750
 
 
 750
Other comprehensive income
 750
 6,945
 
 7,695
Total comprehensive income$32,998
 $58,607
 $10,644
 $(60,879) $41,370



GIBRALTAR INDUSTRIES, INC.
CONSOLIDATING BALANCE SHEET
DECEMBER 31, 2018
(in thousands)
 
Gibraltar
Industries, Inc.
 
Guarantor
Subsidiaries
 
Non-Guarantor
Subsidiaries
 Eliminations Total
Assets         
Current assets:         
Cash and cash equivalents$
 $262,716
 $34,290
 $
 $297,006
Accounts receivable, net
 132,841
 7,442
 
 140,283
Intercompany balances1,183
 2,439
 (3,622) 
 
Inventories
 94,700
 4,213
 
 98,913
Other current assets3,853
 1,146
 3,352
 
 8,351
Total current assets5,036
 493,842
 45,675
 
 544,553
Property, plant, and equipment, net
 93,034
 2,796
 
 95,830
Goodwill
 301,309
 22,362
 
 323,671
Acquired intangibles
 89,556
 6,819
 
 96,375
Other assets
 1,047
 169
 
 1,216
Investment in subsidiaries806,155
 62,722
 
 (868,877) 
 $811,191
 $1,041,510
 $77,821
 $(868,877) $1,061,645
Liabilities and Shareholders’ Equity         
Current liabilities:         
Accounts payable$
 $73,934
 $5,202
 $
 $79,136
Accrued expenses5,493
 77,282
 4,299
 
 87,074
Billings in excess of cost
 13,864
 3,993
 
 17,857
Current maturities of long-term debt209,005
 (200) 
 
 208,805
Total current liabilities214,498
 164,880
 13,494
 
 392,872
Long-term debt
 1,600
 
 
 1,600
Deferred income taxes
 34,925
 1,605
 
 36,530
Other non-current liabilities
 33,950
 
 
 33,950
Shareholders’ equity596,693
 806,155
 62,722
 (868,877) 596,693
 $811,191
 $1,041,510
 $77,821
 $(868,877) $1,061,645

GIBRALTAR INDUSTRIES, INC.
CONSOLIDATING BALANCE SHEET
DECEMBER 31, 2017
(in thousands)
 Gibraltar
Industries, Inc.
 Guarantor
Subsidiaries
 Non-Guarantor
Subsidiaries
 Eliminations Total
Assets         
Current assets:         
Cash and cash equivalents$
 $192,604
 $29,676
 $
 $222,280
Accounts receivable, net
 138,903
 6,482
 
 145,385
Intercompany balances324
 4,166
 (4,490) 
 
Inventories
 82,457
 3,915
 
 86,372
Other current assets5,415
 (368) 3,680
 
 8,727
Total current assets5,739
 417,762
 39,263
 
 462,764
Property, plant, and equipment, net
 93,906
 3,192
 
 97,098
Goodwill
 298,258
 22,816
 
 321,074
Acquired intangibles
 97,171
 8,597
 
 105,768
Other assets
 4,681
 
 
 4,681
Investment in subsidiaries739,970
 61,746
 
 (801,716) 
 $745,709
 $973,524
 $73,868
 $(801,716) $991,385
Liabilities and Shareholders’ Equity         
Current liabilities:         
Accounts payable$
 $77,786
 $4,601
 $
 $82,387
Accrued expenses5,469
 67,746
 2,252
 
 75,467
Billings in excess of cost
 9,840
 2,939
 
 12,779
Current maturities of long-term debt
 400
 
 
 400
Total current liabilities5,469
 155,772
 9,792
 
 171,033
Long-term debt208,521
 1,100
 
 
 209,621
Deferred income taxes
 28,907
 2,330
 
 31,237
Other non-current liabilities
 47,775
 
 
 47,775
Shareholders’ equity531,719
 739,970
 61,746
 (801,716) 531,719
 $745,709
 $973,524
 $73,868
 $(801,716) $991,385


GIBRALTAR INDUSTRIES, INC.
CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS
DECEMBER 31, 2018
(in thousands)
 
Gibraltar
Industries,
Inc.
 
Guarantor
Subsidiaries
 
Non-Guarantor
Subsidiaries
 Eliminations Total
Cash Flows from Operating Activities         
Net cash (used in) provided by operating activities$(13,252)
$103,543
 $7,254
 $
 $97,545
Cash Flows from Investing Activities         
Purchases of property, plant, and equipment
 (12,054) (403) 
 (12,457)
Acquisitions, net of cash acquired
 (5,241) 
 
 (5,241)
Net proceeds from sale of property and equipment
 3,063
 86
 
 3,149
Net cash used in investing activities
 (14,232) (317) 
 (14,549)
Cash Flows from Financing Activities         
Long-term debt payments
 (400) 
 
 (400)
Purchase of treasury stock at market prices(7,165) 
 
 
 (7,165)
Intercompany financing19,032
 (18,799) (233) 
 
Net proceeds from issuance of common stock1,385
 
 
 
 1,385
Net cash provided by (used in) financing activities13,252
 (19,199) (233) 
 (6,180)
Effect of exchange rate changes on cash
 
 (2,090) 
 (2,090)
Net increase in cash and cash equivalents
 70,112
 4,614
 
 74,726
Cash and cash equivalents at beginning of year
 192,604
 29,676
 
 222,280
Cash and cash equivalents at end of year$
 $262,716
 $34,290
 $
 $297,006


GIBRALTAR INDUSTRIES, INC.
CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS
DECEMBER 31, 2017
(in thousands)
 Gibraltar
Industries,
Inc.
 Guarantor
Subsidiaries
 Non-Guarantor
Subsidiaries
 Eliminations Total
Cash Flows from Operating Activities         
Net cash (used in) provided by operating activities$(15,172) $83,114
 $2,128
 $
 $70,070
Cash Flows from Investing Activities         
Purchases of property, plant, and equipment
 (11,026) (373) 
 (11,399)
Acquisitions, net of cash acquired
 (18,494) 
 
 (18,494)
Net proceeds from sale of property and equipment
 12,905
 191
 
 13,096
Net cash used in investing activities
 (16,615) (182) 
 (16,797)
Cash Flows from Financing Activities         
Long-term debt payments
 (400) 
 
 (400)
Purchase of treasury stock at market prices(2,872) 
 
 
 (2,872)
Intercompany financing17,370
 (17,321) (49) 
 
Net proceeds from issuance of common stock674
 
 
 
 674
Net cash provided by (used in) financing activities15,172
 (17,721) (49) 
 (2,598)
Effect of exchange rate changes on cash
 
 1,428
 
 1,428
Net increase in cash and cash equivalents
 48,778
 3,325
 
 52,103
Cash and cash equivalents at beginning of year
 143,826
 26,351
 
 170,177
Cash and cash equivalents at end of year$
 $192,604
 $29,676
 $
 $222,280





















GIBRALTAR INDUSTRIES, INC.
CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS
DECEMBER 31, 2016
(in thousands)
 Gibraltar
Industries,
Inc.
 Guarantor
Subsidiaries
 Non-Guarantor
Subsidiaries
 Eliminations Total
Cash Flows from Operating Activities         
Net cash (used in) provided by operating activities$(34,243) $140,890
 $17,340
 $
 $123,987
Cash Flows from Investing Activities         
Purchases of property, plant, and equipment
 (10,321) (458) 
 (10,779)
Acquisitions, net of cash acquired
 (23,412) 
 
 (23,412)
Net proceeds from sale of property and equipment
 230
 723
 
 953
Net proceeds from sale of business
 
 8,250
 
 8,250
Other, net
 1,118
     1,118
Net cash (used in) provided by investing activities
 (32,385) 8,515
 
 (23,870)
Cash Flows from Financing Activities         
Long-term debt payments
 (400) 
 
 (400)
Payment of debt issuance costs
 (54) 
 
 (54)
Purchase of treasury stock at market prices(1,539) 
 
 
 (1,539)
Intercompany financing32,441
 (3,822) (28,619) 
 
Net proceeds from issuance of common stock3,341
 
 
 
 3,341
Net cash provided by (used in) financing activities34,243
 (4,276) (28,619) 
 1,348
Effect of exchange rate changes on cash
 
 (146) 
 (146)
Net increase (decrease) in cash and cash equivalents
 104,229
 (2,910) 
 101,319
Cash and cash equivalents at beginning of year
 39,597
 29,261
 
 68,858
Cash and cash equivalents at end of year$
 $143,826
 $26,351
 $
 $170,177






(20)(21) QUARTERLY UNAUDITED FINANCIAL DATA


GIBRALTAR INDUSTRIES, INC.
QUARTERLY UNAUDITED FINANCIAL DATA
(in thousands, except per share data)


 2020 Quarters Ended
 March 31June 30September 30December 31Total
Net sales$215,401 $255,184 $296,792 $265,201 $1,032,578 
Gross profit$49,861 $65,561 $78,495 $62,426 $256,343 
Income from continuing operations$12,777 $30,748 $40,943 $22,722 $107,190 
Interest expense$44 $222 $217 $220 $703 
Net income from continuing operations$9,902 $24,457 $31,334 $17,598 $83,291 
Net income (loss) from discontinued operations$2,157 $2,835 $2,426 $(26,143)$(18,725)
Total net income (loss)$12,059 $27,292 $33,760 $(8,545)$64,566 
Income per share from continuing operations:
Basic$0.30 $0.75 $0.96 $0.54 $2.55 
Diluted$0.30 $0.74 $0.95 $0.53 $2.53 
Income (loss) per share from discontinued operations:
Basic$0.07 $0.09 $0.07 $(0.80)$(0.57)
Diluted$0.07 $0.09 $0.07 $(0.79)$(0.57)

 2019 Quarters Ended
 March 31June 30September 30December 31Total
Net sales$187,160 $224,255 $260,784 $226,034 $898,233 
Gross profit$37,259 $56,468 $68,744 $57,426 $219,897 
Income from continuing operations$7,192 $25,073 $28,314 $20,233 $80,812 
Interest expense (income)$2,000 $249 $79 $(5)$2,323 
Net income from continuing operations$4,131 $18,803 $21,951 $15,043 $59,928 
Net income (loss) from discontinued operations$2,214 $1,110 $2,525 $(686)$5,163 
Total net income$6,345 $19,913 $24,476 $14,357 $65,091 
Income per share from continuing operations:
Basic$0.13 $0.58 $0.68 $0.46 $1.85 
Diluted$0.13 $0.58 $0.67 $0.46 $1.83 
Income (loss) per share from discontinued operations:
Basic$0.07 $0.04 $0.07 $(0.02)$0.16 
Diluted$0.06 $0.03 $0.08 $(0.02)$0.16 



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Table of Contents
 2018 Quarters Ended
 March 31 June 30 September 30 December 31 Total
Net sales$215,337
 $266,036
 $280,086
 $240,913
 $1,002,372
Gross profit$48,318
 $70,503
 $70,279
 $53,260
 $242,360
Income from operations$13,843
 $32,274
 $29,404
 $18,447
 $93,968
Interest expense$3,269
 $3,130
 $2,906
 $2,759
 $12,064
Net income from continuing operations$8,352
 $22,837
 $19,503
 $13,117
 $63,809
Total net income$8,352
 $22,837
 $19,503
 $13,117
 $63,809
Income per share from continuing operations:        
Basic$0.26
 $0.72
 $0.61
 $0.41
 $2.00
Diluted$0.26
 $0.70
 $0.60
 $0.40
 $1.96
(22) SUBSEQUENT EVENTS

On February 23, 2021, the Company sold the stock of its Industrial business for net proceeds of approximately $38 million, consisting of $25 million in cash and a $13 million seller note, subject to working capital adjustments. The Industrial business was classified as held for sale and reported as discontinued operations in the Company's consolidated financial statements on this Form 10-K for the year ended December 31, 2020. The estimated loss on the sale of this business is $29.6 million.

 2017 Quarters Ended
 March 31 June 30 September 30 December 31 Total
Net sales$206,605
 $247,627
 $274,574
 $258,112
 $986,918
Gross profit$49,255
 $61,825
 $68,735
 $56,729
 $236,544
Income from operations$9,679
 $24,930
 $35,693
 $22,547
 $92,849
Interest expense$3,576
 $3,550
 $3,486
 $3,420
 $14,032
Net income from continuing operations$3,996
 $13,174
 $20,619
 $25,176
 $62,965
Net loss from discontinued operations$
 $(405) $
 $
 $(405)
Total net income$3,996
 $12,769
 $20,619
 $25,176
 $62,560
Income per share from continuing operations:        
Basic$0.13
 $0.41
 $0.65
 $0.79
 $1.98
Diluted$0.12
 $0.41
 $0.64
 $0.78
 $1.95
Loss per share from discontinued operations:        
Basic$
 $(0.01) $
 $
 $(0.01)
Diluted$
 $(0.01) $
 $
 $(0.01)





Item 9.Changes in and Disagreements with Accountants on Accounting and Financial Disclosure
Not applicable.

Item 9A.Controls and Procedures
Evaluation of Disclosure Controls and Procedures
The Company maintains a system of disclosure controls and procedures (as defined in Rule 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934). The Company’s Chief Executive Officer and the Chief Financial Officer evaluated the effectiveness of the Company’s disclosure controls as of the end of the period covered in this report. Based upon that evaluation and the definition of disclosure controls and procedures contained in Rule 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, the Company’s Chief Executive Officer, and Chief Financial Officer have concluded that as of the end of such period the Company’s disclosure controls and procedures were effective.
Management’s Annual Report on Internal Control Over Financial Reporting
The management of Gibraltar Industries, Inc. is responsible for establishing and maintaining adequate internal control over financial reporting for the Company, as such term is defined in Rule 13a-15(f) under the Securities Exchange Act of 1934. Under the supervision and with the participation of management, including the Company’s Chief Executive Officer and the Chief Financial Officer, the Company conducted an evaluation of the effectiveness of internal control over financial reporting based on the framework in Internal Control – Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (2013 framework). Based on the Company’s evaluation, management concluded that the Company’s internal control over financial reporting was effective as of December 31, 2018.2020.
The Company completed the acquisition of SolarBOSfive acquisitions in 2018,2020, which waswere excluded from management's annual report on internal control over financial reporting as of December 31, 2018.2020. The Company acquired the outstanding stockThermo Energy Systems Inc. ("Thermo") on January 15, 2020, Delta Separations, LLC andTeaching Tech, LLC (collectively, "Delta Separations") on February 13, 2020, Architectural Mailboxes LLC ("Architectural Mailboxes") on October 15, 2020, Sunfig Corporation ("Sunfig") on December 11, 2020, and TerraSmart LLC ("TerraSmart") on December 31, 2020. The results of SolarBOS on August 21, 2018, and its results have beenthese acquired businesses are included in our 20182020 consolidated financial statements. Totalstatements and collectively constituted $420.1 million and $332.4 million of total and net assets, constituted $8.7 million and $7.1 million, respectively, as of December 31, 20182020 and $82.3 million and $(4.5) million of net sales and net income constituted $6.4 million and $0.5 million,losses, respectively, for the year then ended.
The effectiveness of the Company’s internal control over financial reporting as of December 31, 20182020 has been audited by Ernst & Young LLP, an independent registered public accounting firm, as stated in their report which is included below in this Item 9A of this Annual Report on Form 10-K.
Changes in Internal Control over Financial Reporting
There have been no changes in the Company’s internal control over financial reporting (as defined by Rule 13a-15(f)) that occurred during the three months ended December 31, 20182020 that have materially affected the Company’s internal control over financial reporting.



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Report of Independent Registered Public Accounting Firm


To the Shareholders and Board of Directors of Gibraltar Industries, Inc.


Opinion on Internal Control over Financial Reporting


We have audited Gibraltar Industries, Inc.’s internal control over financial reporting as of December 31, 2018,2020, based on criteria established in Internal Control - Control–Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (2013 framework) (the COSO criteria). In our opinion, Gibraltar Industries, Inc. (the Company) maintained, in all material respects, effective internal control over financial reporting as of December 31, 2018,2020, based on the COSO criteria.


As indicated in the accompanying Management’s Annual Report on Internal Control Over Financial Reporting, management’s assessment of and conclusion on the effectiveness of internal control over financial reporting did not include the internal controls of SolarBOS,Thermo Energy Systems Inc. (“Thermo”), Delta Separations, LLC and Teaching Tech, LLC (collectively “Delta Separations”) , Architectural Mailboxes LLC (“Architectural Mailboxes”), Sunfig Corporation (“Sunfig”), and TerraSmart LLC (“TerraSmart”), which isare included in the 20182020 consolidated financial statements of the Company and constituted 1%34.6% and 1%44.7% of total and net assets, respectively, as of December 31, 20182020 and 1%8.0% and 1%(7.0%) of net sales and net income, respectively, for the year then ended. Our audit of internal control over financial reporting of the Company also did not include an evaluation of the internal control over financial reporting of SolarBOS.Thermo, Delta Separations, Architectural Mailboxes, Sunfig, and TerraSmart.


We also have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the 2020 consolidated balance sheets of the Company as of December 31, 20182020 and 2017, and2019, the related consolidated statementstatements of operations, comprehensive income (loss), shareholders’ equity and cash flows for each of the three years in the period ended December 31, 2018,2020, and the related notes and our report dated February 26, 201925, 2021 expressed an unqualified opinion thereon.


Basis for Opinion


The Company’s management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting included in the accompanying Management’s Annual Report on Internal Control Over Financial Reporting. Our responsibility is to express an opinion on the Company’s internal control over financial reporting based on our audit. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.


We conducted our audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects.


Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, testing and evaluating the design and operating effectiveness of internal control based on the assessed risk, and performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.



Definition and Limitations of Internal Control Over Financial Reporting


A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.



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Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.




/s/ Ernst & Young LLP


Buffalo, New YorkBoston, Massachusetts
February 26, 2019


25, 2021
78
Item 9B.Other Information


On May 4, 2018, the stockholdersTable of the Company approved the adoption of a new equity based incentive compensation plan known as the Gibraltar Industries, Inc. 2018 Equity Incentive Plan (the "2018 Plan"). The 2018 Plan permits the Company to grant a variety of equity based incentive compensation awards to officers, directors and other key employees of the Company and its subsidiaries. The types of equity based incentive compensation awards which may be issued by the Company under the terms of the 2018 Plan include non-qualified options, restricted shares, restricted stock units, performance shares, performance stock units, and stock rights.Contents

The form of the award of performance units to certain executives of the Company is included on this Form 10-K as Exhibit 10.22 and is incorporated herein by reference.

The form of the award of restricted stock units to certain executives of the Company is included on this Form 10-K as Exhibit 10.23 and is incorporated herein by reference.

The form of the award of restricted stock units to non-executive employees of the Company is included on this Form 10-K as Exhibit 10.24 and is incorporated herein by reference.

The form of the award to certain employees of the Company of discretionary restricted stock units with a vesting acceleration feature upon retirement age is included on this Form 10-K as Exhibit 10.25 and is incorporated herein by reference.

The form of the award to certain employees of the Company of discretionary restricted stock units without a vesting acceleration feature upon retirement age is included on this Form 10-K as Exhibit 10.26 and is incorporated herein by reference.

PART III
 
Item 10.Directors, Executive Officers, and Corporate Governance
Information regarding directors and executive officers of the Company, as well as the required disclosures with respect to the Company’s audit committee financial expert, is incorporated herein by reference to the information included in the Company’s 20192021 Proxy Statement which will be filed with the Commission within 120 days after the end of the Company’s 20182020 fiscal year.
The Company has adopted a Code of Ethics that applies to all of our directors, officers, employees and representatives. The complete text of this Code of Ethics is available in the corporate governance section of our website at www.gibraltar1.com. The Company does not intend to incorporate the contents of our website into this Annual Report on Form 10-K.
 
Item 11.Executive Compensation
Information regarding executive compensation is incorporated herein by reference to the information included in the Company’s 20192021 Proxy Statement which will be filed with the Commission within 120 days after the end of the Company’s 20182020 fiscal year.
 
Item 12.Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters
Information regarding security ownership of certain beneficial owners and management and the Company's equity compensation plans are incorporated herein by reference to the information included in the Company’s 20192021 Proxy Statement which will be filed with the Commission within 120 days after the end of the Company’s 20182020 fiscal year.
 

Item 13.Certain Relationships and Related Transactions and Director Independence
Information regarding certain relationships and related transactions is incorporated herein by reference to the information included in the Company’s 20192021 Proxy Statement which will be filed with the Commission within 120 days after the end of the Company’s 20182020 fiscal year.
 
Item 14.Principal Accounting Fees and Services
Information regarding principal accounting fees and services is incorporated herein by reference to the information included in the Company’s 20192021 Proxy Statement which will be filed with the Commission within 120 days after the end of the Company’s 20182020 fiscal year.



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PART IV
 
Item 15.Exhibits and Financial Statement Schedules
 
(a)The following documents are filed as part of this Annual Report on Form 10K:
(1)Consolidated Financial Statements:
(a)Documents filed as part of this report:
(i)
(1)The following financial statements are included:
(i)Report of Independent Registered Public Accounting Firm
(ii)Consolidated Statements of Operations for the Years Ended December 31, 2018, 2017,2020, 2019, and 20162018
(iii)Consolidated Statements of Comprehensive Income for the Years Ended December 31, 2018, 2017,2020, 2019, and 20162018
(iv)Consolidated Balance Sheets as of December 31, 20182020 and 20172019
(v)Consolidated Statements of Cash Flows for the Years Ended December 31, 2018, 2017,2020, 2019, and 20162018
(vi)Consolidated Statements of Shareholders’ Equity and Comprehensive Income for the Years Ended December 31, 2018, 2017,2020, 2019, and 20162018
(vii)Notes to Consolidated Financial Statements
(2)The following financial statement schedules for the years ended December 31, 2018, 2017, and 2016 are included in this Annual Report on Form 10-K:Financial Statement Schedule:
(i)Quarterly Unaudited Financial Data (included in notes to consolidated financial statements)
Schedules other than those listed above are omitted because the conditions requiring their filing dothey are not exist,required, or because the required information is provided in the consolidated financial statements, including the notes thereto.
(3)
Exhibits: the indexExhibits Required by Item 601 of Regulation S-K: The list of exhibits to this Annual Report on Form 10-K included herein is set forth on the attached Exhibit Index. Each management contract or compensatory plan or arrangement is identified as such in the Exhibit Index.
(b)Other Information:Exhibits:
Not applicable



Exhibit Index
The documents listed in the Exhibit Index are filed or furnished with this Annual Report on Form 10-K or incorporated by reference into this Annual Report on Form 10-K.
No.
(c)Financial Statement Schedule:
The financial statement schedule listed in Item 15(a)(2) above is filed with this Annual Report on Form 10-K.


80

Exhibit Index
No.Exhibit
Certificate of Incorporation of registrant (incorporated by reference to Exhibit 3.1 to the Company’s Registration Statement on Form S-4 (Registration No. 333-135908))Gibraltar Industries, Inc., as amended byby: (i) Certificate of Amendment of Certificate of Incorporation of Gibraltar Industries, Inc. filed May 22, 2012 (incorporated by reference to Exhibit 3.1October 27, 2004, (ii) Certificate of the Company’s Current Report on Form 8-KChange of Registered Agent and Registered Office of Gibraltar Industries, Inc. filed May 22, 2012), and further amended by11, 2005, (iii) Certificate of Amendment of Certificate of Incorporation of Gibraltar Industries, Inc. filed onexecuted May 22, 2012, and (iv) Certificate of Amendment of Certificate of Incorporation of Gibraltar Industries, Inc. executed May 11, 2015 (incorporated by reference to Exhibit 3.1 of the Company's Current Report on Form 8-K filed May 12, 2015)
Amended and Restated By Laws of Gibraltar Industries, Inc. effective January 1, 2015 (incorporated by reference to Exhibit 3.1 to the Company’s Current Report on Form 8-K filed on January 5, 2015)
Specimen Common Share Certificate (incorporated by reference number to Exhibit 4.1 to the Company’s Registration Statement on Form S-1 (Registration No. 33-69304))
Indenture for 6.25% Notes dated asDescription of January 31, 2013, among the Company, the Guarantors (as defined therein) and the TrusteeRegistrant's Securities (incorporated by reference number to Exhibit 4.14.3 to the Company’s CurrentCompany's Annual Report on Form 8-K filed on February 1, 2013).10-K for the year ended December 31, 2019)
Employment AgreementCorrespondence dated as of May 9, 2014 between the Registrant and Frank G. HeardDecember 17, 2018, from William P. Montague to William T. Bosway (incorporated by reference to Exhibit 10.1 toof the Company’s Current Report on Form 8-K filed May 15, 2014), as amended by Employment Agreement, dated January 1, 2015 (incorporated by reference to Exhibit 10.2 to the Company’sCompany's Current Report on Form 8-K filed January 5, 2015)7, 2019)
Restrictive Covenants and Severance Agreement by and between Gibraltar Industries, Inc. and William T. Bosway, dated December 17, 2018 and effective January 2, 2019 (incorporated by reference to Exhibit 10.2 of the Company's Current Report on Form 8-K filed January 7, 2019)
Change in Control Agreement between the Company and Frank G. HeardWilliam T. Bosway dated December 17, 2018 and effective January 1, 20152, 2019 (incorporated by reference to Exhibit 10.3 to the Company’s Current Report on Form 8-K filed January 5, 2015)7, 2019)
Correspondence dated March 8, 2019, from William T. Bosway to Patrick M. Burns (incorporated by reference to Exhibit 10.1 of the Company's Current Report on Form 8-K filed March 19, 2019)
Change in Control Agreement between the Company and Patrick M. Burns dated March 15, 2019 and effective March 18, 2019 (incorporated by reference to Exhibit 10.2 to the Company’s Current Report on Form 8-K filed March 19, 2019)
Change in Control Agreement between the Company and Timothy F. Murphy (incorporated by reference to Exhibit 10.2 to the Company’s Quarterly Report on Form 10-Q filed May 5, 2017)
Gibraltar 401(k) Plan Amendment and Restatement Effective October 1, 2004 as amended by the First, Second, and Third Amendments to the Amendment and Restatement Effective October 1, 2004 (incorporated by reference to Exhibit 10.19 to the Company’s Annual Report on Form 10-K for the year ended December 31, 2004)
Gibraltar Deferred Compensation Plan Amended and Restated, effective January 1, 2009 (incorporated by reference to Exhibit 10.2 to the Company’s Current Report on Form 8-K filed February 24, 2009)
Amended and Restated Gibraltar Industries, Inc. 2005 Equity Incentive Plan (incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed December 21, 2006), as amended by Second Amendment to Third Amendment and Restatement of Equity Incentive Plan, dated May 7, 2015 (incorporated by reference to Exhibit 10.210.4 to the Company’s Current Report on Form 8-K filed May 12, 2015)
Gibraltar Industries, Inc. Omnibus Code Section 409A Compliance Policy, dated December 30, 2008 (incorporated by reference to Exhibit 10.3 to the Company’s Current Report on Form 8-K filed January 6, 2009)
Summary Description of Annual Management Incentive Compensation Plan (incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed February 24, 2009)

No.Exhibit
Fifth Amended and Restated Credit Agreement dated December 9, 2015 among Gibraltar Industries, Inc. and Gibraltar Steel Corporation of New York, as borrowers, the lenders parties thereto, Key Bank National Association, as administrative agent, KeyBank Capital Markets Inc. as joint lead arranger, JPMorgan Chase Bank, N.A., as joint lead arranger, Bank of America, N.A., as co-documentation agent, M&T Bank, as co-documentation agent, Citizens Bank, N.A., as co-documentation agent, and PNC Bank, National Association, as co-documentation agent (incorporated by reference to Exhibit 10.1 of the Company’s Current Report on Form 8-K filed December 15, 2015)
Sixth Amendment and Restatement Credit Agreement dated January 24, 2019 among Gibraltar Industries, Inc. and Gibraltar Steel Corporation of New York, as borrowers, the lenders parties named therein, KeyBank National Association, as administrative agent, swing line lender and issuing lender, KeyBanc Capital Markets Inc. as joint lead arranger and joint book runner, Bank of America, N.A. and Citizens Bank, N.A. as joint lead arrangers, joint book runners and co-syndication agents and Branch Banking and Trust Company, BMO Harris Bank, N.A., M&T Bank and PNC Bank, National Association, as co-documentation agents (incorporated by reference to Exhibit 10.1 of the Company's Current Report on Form 8-K filed January 25, 2019)
81

No.Exhibit
Gibraltar Industries, Inc. 2015 Equity Incentive Plan dated December 31, 2015 (incorporated by reference to Exhibit 10.4 to the Company's Current Report on Form 8-K filed January 7, 2016), and as amended by Gibraltar Industries, Inc. 2015 Equity Incentive Plan First Amendment dated May 5, 2017 (incorporated by reference to Exhibit 10.1 of the Company's Current Report on Form 8-K filed May 9, 2017)
Gibraltar Industries, Inc. 2015 Management Stock Purchase Plan dated May 7, 2015 (incorporated by reference to Exhibit 10.5 to the Company's Current Report on Form 8-K filed May 12, 2015), as amended by Management Stock Purchase Plan dated December 31, 2015 (incorporated by reference to Exhibit 10.5 to the Company's Current Report on Form 8-K filed January 7, 2016), and further amended by the Gibraltar Industries, Inc. Management Stock Purchase Plan Second Amendment dated January 28, 2016 (incorporated by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K filed January 28, 2016)
Gibraltar Industries, Inc. 2018 Equity Incentive Plan dated May 4, 2018 (incorporated by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K filed May 7, 2018)
Gibraltar Industries, Inc. 2018 Management Stock Purchase Plan dated November 1, 2018 (incorporated by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K filed November 1, 2018)
Gibraltar Industries, Inc. 2015 Equity Incentive Plan Form of Award of Restricted Stock dated May 7, 2015 (incorporated by reference to Exhibit 10.3 to the Company's Current Report on Form 8-K filed May 12, 2015)
Gibraltar Industries, Inc. 2015 Equity Incentive Plan Form of Award of Performance Units dated December 31, 2015 (incorporated by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K filed February 3, 2017)
Gibraltar Industries, Inc. 2015 Equity Incentive Plan Form of Award of Non-Qualified Options dated December 31, 2015 (incorporated by reference to Exhibit 10.2 to the Company's Current Report on Form 8-K filed January 7, 2016)
Gibraltar Industries, Inc. 2015 Equity Incentive Plan Form of Award of Restricted Units dated December 31, 2015 (incorporated by reference to Exhibit 10.2 to the Company's Current Report on Form 8-K filed February 5, 2016)
Gibraltar Industries, Inc. 2015 Equity Incentive Plan Form of Award of Restricted Units dated December 31, 2015 (incorporated by reference to Exhibit 10.3 to the Company's Current Report on Form 8-K filed February 5, 2016)

No.Exhibit
Gibraltar Industries, Inc. 2016 Stock Plan for Non-Employee Directors (incorporated by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K filed May 10, 2016)
Gibraltar Industries, Inc. Non-Employee Director Stock Deferral Plan (incorporated by reference to Exhibit 10.2 to the Company's Current Report on Form 8-K filed May 10, 2016)
Gibraltar Industries, Inc. 2018 Equity Incentive Plan Form of Award of Performance Units dated May 4, 2018 (incorporated hereinby reference to Exhibit 10.22 to the Company's Annual Report on this Form 10-K by reference)8-K for the year ended December 31, 2018 filed February 27, 2019)
Gibraltar Industries, Inc. 2018 Equity Incentive Plan Form of Award of Restricted Units dated May 4, 2018 (incorporated hereinby reference to Exhibit 10.23 to the Company's Annual Report on this Form 10-K by reference)8-K for the year ended December 31, 2018 filed February 27, 2019)
Gibraltar Industries, Inc. 2018 Equity Incentive Plan Form of Award of Restricted Units dated May 4, 2018 (incorporated hereinby reference to Exhibit 10.24 to the Company's Annual Report on this Form 10-K by reference)8-K for the year ended December 31, 2018 filed February 27, 2019)
Gibraltar Industries, Inc. 2018 Equity Incentive Plan Form of Award of Restricted Units dated May 4, 2018 (incorporated hereinby reference to Exhibit 10.25 to the Company's Annual Report on this Form 10-K by reference)8-K for the year ended December 31, 2018 filed February 27, 2019)
Gibraltar Industries, Inc. 2018 Equity Incentive Plan Form of Award of Restricted Units dated May 4, 2018 (incorporated hereinby reference to Exhibit 10.26 to the Company's Annual Report on this Form 10-K by reference)
Subsidiaries of8-K for the Registrant
year ended December 31, 2018 filed February 27, 2019)
Subsidiaries of the Registrant
82

No.Exhibit
Consent of Independent Registered Public Accounting Firm
Certification of President and Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
Certification of Senior Vice President and Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
Certification of President and Chief Executive Officer pursuant to Title 18, United States Code, Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
Certification of Senior Vice President and Chief Financial Officer pursuant to Title 18, United States Code, Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
101.INSXBRL Instance Document **
101.SCHXBRL Taxonomy Extension Schema Document**
101.CALXBRL Taxonomy Extension Calculation Linkbase Document**
101.LABXBRL Taxonomy Extension Label Linkbase Document **
101.PREXBRL Taxonomy Extension Presentation Linkbase Document **
101.DEFXBRL Taxonomy Extension Definition Linkbase Document **
*Document is a management contract or compensatory plan or agreement.
**Submitted electronically with this Annual Report on Form 10-K.


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SIGNATURES
Pursuant to the requirements of Section 13 or 15(d) of the Securities and Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.
 
GIBRALTAR INDUSTRIES, INC.
By:/s/ William T. Bosway
William T. Bosway
President and

Chief Executive Officer
Dated:February 26, 201925, 2021
In accordance with the Securities and Exchange Act of 1934, this report has been signed below by the following persons on behalf of the Registrant and in the capacities and on the dates indicated.
 
SIGNATURETITLEDATE
/s/ William T. BoswayPresident, Chief Executive Officer (principal executive officer) and DirectorFebruary 26, 201925, 2021
William T. Bosway
/s/ Frank G. HeardVice Chairman of the Board of DirectorsFebruary 26, 2019
Frank G. Heard
/s/ Timothy F. MurphySenior Vice President and Chief Financial Officer (principal financial and accounting officer)February 26, 201925, 2021
Timothy F. Murphy
/s/ William P. MontagueChairman of the BoardFebruary 26, 201925, 2021
William P. Montague
/s/ Mark G. BarberioDirectorFebruary 26, 201925, 2021
Mark G. Barberio
/s/ Sharon M. BradyDirectorFebruary 26, 201925, 2021
Sharon M. Brady
/s/ Craig A. HindmanDirectorFebruary 26, 201925, 2021
Craig A. Hindman
/s/ Vinod M. KhilnaniDirectorFebruary 26, 201925, 2021
Vinod M. Khilnani
/s/ Linda K. MyersDirectorFebruary 25, 2021
Linda K. Myers
/s/ James B. NishDirectorFebruary 26, 201925, 2021
James B. Nish
/s/ Atlee Valentine PopeDirectorFebruary 25, 2021
Atlee Valentine Pope

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