Image courtesy National Roofing Contractors Association (NRCA)
The National Roofing Contractors Association (NRCA) released The NRCA Roofing Manual: Metal Panel and SPF Roof Systems—2024 to provide the roofing industry with the most comprehensive information about the metal panel and spray polyurethane foam roof systems used in low- and steep-slope applications. The new volume updates the 2020 volume under the same title and serves as a reference for contractors, architects, and roof consultants.
The manual consists of two sections: Metal Panel Roof Systems and SPF Roof Systems. The Metal Panel Roof Systems section includes guidelines applicable to metal and metal panel roof systems, substrates, architectural metal panel systems, and structural metal panel roof systems in addition to 120 construction details.
The SPF Roof Systems section includes information about materials, design considerations, application and design guidelines, as well as 72 construction details, including SPF details for reroofing and roof systems with fleece-backed membranes. Appendixes address code requirements specific to metal panel and SPF roof systems.
The NRCA Roofing Manual: Metal Panel and SPF Roof Systems—2024 is best used with other volumes, including The NRCA Roofing Manual: Membrane Roof Systems—2023, The NRCA Roofing Manual: Architectural Metal Flashing and Condensation and Air Leakage Control—2022, and The NRCA Roofing Manual: Steep-slope Roof Systems—2021.
In addition, NRCA Construction Details: CAD Files—2024 was updated to reflect construction details found in the 2024 manual boxed set. The NRCA Roofing & Waterproofing Manual Anthology was updated to include The NRCA Roofing Manual: Metal Panel and SPF Roof Systems—2020.
