Cornerstone Building Brands, Inc. is a leading manufacturer of exterior building products in North America. The company provides residential and commercial customers with an extensive portfolio of products that includes windows, doors, siding, metal roofing, stone veneer, and other complementary products. Cornerstone Building Brands has a broad distribution network that includes more than 20,000 dealers and distributors, as well as a growing direct-to-consumer platform. The company is committed to sustainability and has implemented a number of initiatives to reduce its environmental impact, including the use of recycled materials and the development of energy-efficient products.