CertainTeed CertainTeed is a manufacturer of low slope and steep slope roofing products for commercial, industrial, institutional, and residential roofing and waterproofing applications. CertainTeed has served the roofing industry for 100 years, establishing a solid reputation for quality, reliability, and technical innovation. www.certainteed.com
IKO A family owned company that has been committed to manufacturing quality residential and commercial roofing products since 1950. www.iko.com
GAF GAF aterials Corporation helps to assure your best and safest choice in roofing. www.gaf.com
