We belong to the following associations:   Cincinnati Better Business Bureau NFIB (National Federation of Independent Business)     NRCA (National Roofing Contractors Association)     Safety Council of Southwestern Ohio     CertainTeed Professional Roofer Advisory Council     Ohio Roofing Contractors Association     Below is the list of manufacturers of materials/products we use or install:           www.atas.com www.carlislesyntec.com www.certainteed.com www.gaf.com www.velux.com www.airvent.com www.tamko.com