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Through the responsible development of innovative and sustainable building products, CertainTeed® has helped shape the building products industry for more than 110 years. 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.
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