5 Construction Types According to Building Codes
Surety Bond Professionals is a family owned and operated bonding agency with over 30 years of experience. With access to a broad range of surety markets, our expert agents are ready to assist with all of your construction bond needs. International Building Code (IBC) Categories The five IBC categories identify the level of fire protection provided by five types of construction. The construction type chosen for a structure determines important parameters such as the building’s: Permissible uses Maximum occupancy Square footage Proximity to other structures Placement of windows and exits Fire resistance Need for sprinklers Type I is the most stringent and Type V is the least stringent in terms of fire resistance. Additionally, each category is further designated as “A” or “B” for basic or enhanced protection. Construction Types & Building Codes Type I Construction Type I buildings are made of fire resistive and non-combustible materials (concrete and steel) and are rated as being able to resist fire for 2-3 hours. In general, high-rise and high-occupancy buildings are construction type I-A. Type I-A provides enhanced protection against fire—3 hours for exterior walls and structural frame, 2 hours for floor/ceiling assemblies, and 1.5 hours for the roof. Type I-B,...
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