Having manufacturer-certified roofers install your GAF or CertainTeed asphalt shingles is a very big deal and homeowners should insist on these certifications. It’s an even bigger deal when a company like Signature Roofing holds certifications from both asphalt shingle manufacturers.
Only 3% of roofers nationwide earn GAF’s Master Elite status for asphalt shingle and roofing material installation. Many roofing companies do not quality because of the stringent qualifications.
For example, GAF insists on and verifies the following:
CertainTeed’s ShingleMaster status is similarly stringent. Roofing contractors who are focused on superior workmanship and customer satisfaction earn the SM credential by employing a Master Shingle Applicator qualified workforce or participating in an SM credential course.
Asphalt shingles and roofing materials can last decades with one caveat. The shingles and materials must be installed correctly using the latest manufacturers’ (like GAF and CertainTeed) specifications. If asphalt shingles and roofing materials are not installed properly they can dramatically reduce the roof’s lifespan, void the asphalt shingle manufacturer’s warranty and cause extensive damage to your home.