CARY, N.C.–(BUSINESS WIRE)– Cornerstone Building Brands, Inc. (NYSE: CNR) (the “Company”), the largest manufacturer of exterior building products in North America, today announced the joining of Jason Flack as President of the Stone Solutions business unit. In this role, Mr. Flack will lead the Stone Solutions organization, provide strategic direction, and establish a trusted partnership with our customers. He will assume the role effective December 1, 2021, and report directly to the President and Chief Executive Officer, Rose Lee.