When George Brown founded the General Roofing Manufacturing Company in 1904, he could not have imagined the explosive growth this country would experience. The company’s name was changed in 1917 to Certain-Teed from its slogan “Quality made certain, Satisfaction Guaranteed.” The company continued to grow as the premier asphalt shingle manufacturer. In the 1960’s, the company acquired both a fiberglass insulation business and PVC pipe businesses which led to the introduction of solid vinyl siding. The addition of both Gypsum and Ceilings in 2007 rounded out the scope of building materials currently manufactured by CertainTeed.


Founded in 1904 as General Roofing Manufacturing Company, today, CertainTeed® is North America’s leading brand of exterior and interior building products, including roofing, siding, fence, decking, railing, trim, insulation, gypsum and ceilings. A subsidiary of Saint-Gobain, one of the world’s largest and oldest building products companies, CertainTeed and its affiliates have more than 5,700 employees and more than 60 manufacturing facilities throughout the United States and Canada.


CertainTeed takes pride in providing the best products to meet today’s market needs, but are also looking ahead to offer our customers innovations for tomorrow. Using their definition of sustainable products, CertainTeed focuses on creating value at the triple bottom line for all stakeholders. This means offering high performing, affordable products that enhance users’ comfort and well-being while reducing overall environmental impacts. As part of a pledge to product stewardship, the design teams use life cycle thinking to improve the sustainability of a product beginning with product inception.