Founded in 1886, GAF Materials Corporation has grown to be North America's largest commercial
and residential roofing manufacturer (approaching $2 billion in sales)
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CertainTeed is a leading U.S. manufacturer of low slope and
steep slope roofing products for commercial, industrial, institutional, and residential roofing and waterproofing applications. read more
James Hardie is a leader in the manufacturing
and development of technologies, materials and manufacturing processes of durable building materials. read more
