The 2018 manual contains information about the design, materials and installation techniques applicable to architectural sheet-metal components and includes 60 construction details. In addition, the manual provides background information regarding moisture and air leakage issues in buildings such has ventilation for steep-slope roof assemblies and condensation control for low-slope roof systems. The appendixes include information about climatic design, considerations for lighting-protection systems and NRCA’s technical directory.
Each volume of the manual series is intended to be updated every four years. For example, The NRCA Roofing Manual: Membrane Roof Systems—2015 will be updated in 2019, The NRCA Roofing Manual: Metal Panel and SPF Roof Systems—2016 will be updated in 2020, etc.
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