This booklet, a joint project between the Asphalt Roofing Manufacturers Association and NRCA, is intended to provide guidance for the on-site evaluation of the application of asphalt shingle roof systems. The guidance presented in this document is based on the technical knowledge of experienced asphalt shingle manufacturers and installers.
This document provides visual examination evaluation criteria for the roof substrate surface, underlayment, drip edge, fasteners, asphalt shingles and flashings. If you work on asphalt shingle roof systems, you need this booklet!