OLDCASTLE 401(k) PLAN
NOTES TO FINANCIAL STATEMENTS
December 31, 2014 and 2013
Exhibit 23.1
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We consent to the incorporation by reference in Registration Statement No. 333-165870 on Form S-8 of CRH public limited company of our report dated June 29, 2018 appearing in this Annual Report on Form 11-K of the Oldcastle 401(k) Plan for the year ended December 31, 2017.
/s/ Crowe Horwath LLP
South Bend, Indiana
June 29, 2018