NRCA and the Asphalt Roofing Manufacturers Association (ARMA) have published Quality Control Guidelines for the Application of Asphalt Shingle Roof Systems. The document provides guidelines for the on-site evaluation of asphalt shingle roof system application at the time of installation.
Quality control and quality assurance are essential elements of all roof system applications.
Quality control is performed by the installing roofing contractor, who designates an individual to be on-site during roof system application. A designated individual may be a crew member and should be knowledgeable of the roof system type being installed and have the authority to immediately correct noncompliant work.