CARY, N.C.–(BUSINESS WIRE)– Cornerstone Building Brands, Inc. (NYSE: CNR) (the “Company”), a leading provider of exterior building products, today reported first-quarter 2020 net sales of $1,113.8 million, up 4.6 percent from the same period a year ago. Adjusted for acquisitions, first-quarter 2020 pro formanet sales1 were $1,122.2 million as compared to pro formanet sales1 of $1,088.7 million for first-quarter 2019. The increase was primarily driven by positive price/mix and higher volume.