NRCA Roofing Manual: Membrane Roof Systems 2023

The NRCA Roofing Manual: Membrane Roof Systems—2023 is a comprehensive guide published by the National Roofing Contractors Association (NRCA), offering best industry practices and technical information on the design, materials, and installation techniques for membrane roof systems used in low-slope applications. This manual covers essential components such as roof decks, air and vapor retarders, rigid board insulation, roof membranes, fasteners, surfacing, accessories, roof system configurations, and roof re-coverings.