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.
Item # 0439e