CARY, N.C.–(BUSINESS WIRE)– Cornerstone Building Brands, Inc. (NYSE: CNR) (the “Company”), the largest manufacturer of exterior building products, today reported fourth-quarter 2020 net sales of $1,191.4 million and net income of $1.9 million or one cent per diluted share. This compares with net sales of $1,244.4 million and net income of $1.9 million or two cents per diluted share in the same quarter last year.