NRCA Roofing Manual: Metal Panel & SPF 2024

The NRCA Roofing Manual: Metal Panel and SPF Roof Systems—2024 is a comprehensive guide published by the National Roofing Contractors Association (NRCA), providing updated best practices for the design, materials, and installation techniques of metal panel and spray polyurethane foam (SPF) roof systems in both low- and steep-slope applications.