Rehabilitation Guidelines 1980. 8. Guideline on Fire Ratings of Archaic Materials and Assemblies

摘要

This report of an eight-volume series, focuses on the fire-related performance of archaic construction, which encompasses those buildings constructed generally before 1950. It contains the fire ratings of building materials and assemblies no longer listed in current building codes or related reference standards. It can be used by architects, engineers, and code officials when evaluating the fire safety of rehabilitation project. Introductory material discusses flame spread, the effects of penetrations, and methods for determining the ratings of assemblies not listed in the guideline. Code requirements for the fire performance of key building elements (e.g., walls, doors, floor/ceiling assemblies, etc.) are appended. They are stated in performance terms--hours of fire resistance. The final evaluation phase of a rehabilitation project is examined, and the experimental and theoretical approaches to design solutions are described that can make possible the continued use of archaic materials and assemblies in the rehabilitated structure. Harmathy's 'Ten Rules of Fire Endurance Ratings' are also included to provide a foundation for extending the appended data to analyze or upgrade current as well as archaic building materials and assemblies. Footnotes, illustrations, and 165 references are supplied.