Section 714.1/Penetrations of Fire-Resistance-Rated Assemblies
IBC 714 covers firestopping requirements for penetrations through fire-rated walls and floors using listed firestop systems.
Penetrations through fire-resistance-rated walls and horizontal assemblies (floors, roof-ceilings) must be protected with a listed firestop system or a through-penetration firestop system that maintains the fire-resistance rating of the assembly. The firestop system must be tested per ASTM E814 (or UL 1479) and have an F-rating (flame) at least equal to the required fire-resistance rating of the assembly penetrated. For floor penetrations, a T-rating (temperature) is also required. The firestop system must be installed per the manufacturer's tested configuration, matching the penetrating item type, size, annular space, and wall/floor construction.
Why this section exists
A fire-resistance-rated wall or floor is only as effective as its weakest point. Every pipe, conduit, duct, cable tray, and structural member that penetrates the assembly creates an opening through which fire and smoke can pass. Without firestopping, a 2-hour rated wall with an unprotected pipe penetration can allow fire spread in minutes. Firestop systems use intumescent materials, mineral wool, and sealants that expand when heated to seal the opening and maintain the rated assembly's fire performance.
What plan reviewers look for
Plan reviewers check the architectural and MEP drawings for all penetrations through rated assemblies. They verify the firestop specification references a listed system with the required F-rating (and T-rating for floors). They check that the firestop system is compatible with the penetrating item type (metallic pipe, plastic pipe, cable, duct) and the assembly type (concrete, gypsum, CMU). They verify the specification requires installation per the tested configuration.