Investor Presentation

Strong Momentum In Our Residential Markets Single Family Housing Starts vs. All-Time Cyclical Peak Single Family Housing Starts In Our Highest Growth Residential Markets All-Time Annual Peak vs. Full-Year 2017 (1) 70,000 60,000 50,000 40,000 30,000 20,000 10,000 (1) 0 33% From Peak Houston 20% From Peak Dallas/Ft. Worth ■2017 Single Family Starts (Projected) Source: JBREC, CoreLogic, Company Estimates as of February 2018 4 70% From Peak Las Vegas ■ Variance To All-Time Peak 25% From Peak Salt Lake City SUMMIT Materials

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