Advantage Roofing Inc. is certified by the largest roofing manufacturers in the industry today. Having earned the certifications of GAF, Master Elite, and Certainteed Select Shingle Applicator, we are able to issue you the best warranties on the market. We are also certified in many different commercial systems, including GAF, Certainteed, Johns Manville, Mulehide, Firestone, and many others. These certifications allow us the ability to install not only shingle products but many different flat roofing products.