John L. Buckley

Cornerstone Building Brands, Inc. engages in the design, engineer and manufacture of external building products. It operates through the following segments: Aperture, Surface and Shelter Solutions. The Aperture solutions offers windows and doors at multiple price tiers for residential new construction and residential repair and remodel end markets primarily in the United States and Canada. The Surface solutions includes Siding and accessories, Cellular PVC trim, Vinyl fencing and railing, Stone veneer & Gutter protection. The Shelter solutions designs, engineers, manufactures and distributes an extensive line of building products for the low-rise commercial construction market under multiple brand names and through a nationwide network of manufacturing plants and distribution centers. The company was founded by Johnie Schulte in 1984 and is headquartered in Cary, NC.

Ply Gem Holdings, Inc. manufactures exterior building products. The company was founded in 2004 and is headquartered in Cary, NC.

Vinyl Siding Institute, Inc. manufactures vinyl and polymeric siding products. It also offers design and installation services. The company was founded in 1998 and is headquartered in Washington, DC.