The National Roofing Contractors Association (NRCA) and the Asphalt Roofing Manufacturers Association (ARMA) have released Quality Control Guidelines for the Application of Asphalt Shingle Roof Systems . The booklet is intended to provide guidance, based on technical knowledge from experienced asphalt shingle manufacturers and installers, for the on-site evaluation of asphalt shingle roof system applications.
The booklet provides visual examination evaluation criteria for a roof substrate surface, underlayment, drip edge, fasteners, asphalt shingles and flashings.
Quality Control Guidelines for the Application of Asphalt Shingle Roof Systems is $10 for NRCA members and $20 for nonmembers. For more information or to purchase the booklet, visit shop.nrca.net or contact NRCA's Customer Service Department at (866) ASK-NRCA (275-6722) or firstname.lastname@example.org .