Alside represents over six decades of inspired innovation. Founded in 1947, Alside is a leading manufacturer of vinyl siding and accessories, vinyl windows and patio doors, and fencing and railing products for the residential and commercial remodeling and new construction markets.
CertainTeed is a leading North American manufacturer of building materials including roofing, vinyl siding, trim, fence, railing, decking, insulation, gypsum, and ceilings products. Headquartered in Valley Forge, Pennsylvania, CertainTeed has approximately 6,000 employees and 65 facilities throughout the United States and Canada.
Traditional and timeless. Sleek and strong. HardiePlank lap siding is not just their best-selling product—it’s the most popular brand of siding in America, protecting and beautifying more from coast to coast. All styles are Engineered for Climate and come primed, or with baked-on Color Plus Technology.