The requirements for a structure’s fire resistance defined by the International Building Code (IBC) and the National Building Code of Canada (NBCC) are based on occupancy and classification. A building may be designed and constructed with fire-rated walls, floors, and ceilings for structural integrity as well as to prevent fire and smoke from spreading throughout the building. The requirements defined by model building codes are intended to allow the occupants to exit a structure safely and limit damage from the fire. Both above mentioned building codes have provisions for constructing safe fire barriers to limit fire spread and support safe egress in the event of a fire.
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