Penetrations through fire-rated wall assemblies require an approved penetration firestop system installed per California Building Code Section 714 and tested in accordance with ASTM E 814 or UL 1479, maintaining an F rating equal to the wall assembly. Penetrations through fire-rated floor-ceiling assemblies require an approved firestop system with both an F rating and a T rating of not less than one hour and not less than the rating of the floor penetrated. For one-hour rated assemblies, Grace Flame Safe FS900+ sealant or an approved UL listed equivalent is specified.
NOTES: 1.PENETRATIONS THROUGH FIRE RATED WALL ASSEMBLIES SHALL BE PROTECTED BY AN APPROVED PENETRATION FIRESTOP SYSTEM INSTALLED AS TESTED IN ACCORDANCE WITH CBC 714 (ASTM E 814 OR UL 1479) AND SHALL HAVE AN F RATING OF NOT LESS THAN THE REQUIRED RATING OF THE WALL PENETRATED. 2. PENETRATIONS THROUGH FIRE RATED FLOOR/CEILING ASSEMBLIES SHALL BE PROTECTED BY AN APPROVED PENETRATION FIRESTOP SYSTEM INSTALLED AS TESTED IN ACCORDANCE WITH CBC 714 (ASTM E 814 OR UL 1479). THE SYSTEM SHALL HAVE AN F RATING AND A T RATING OF NOT LESS THAN ONE HOUR, BUT NOT LESS THAN THE REQUIRED RATING OF THE FLOOR PENETRATED. 3. FOR ONE HOUR RATED ASSEMBLIES USE GRACE FLAME SAFE FS900+ SEALANT OR APPROVED UL LISTED EQUIVALENT. RATED FLOOR / CEILING ASSEMBLY RATED WALL ASSEMBLY ASTM E 814 APPROVED FIRESTOP SYSTEM THROUGH-PENETRATION AS DEFINED BY CBC SEC. 714 WALL ASSEMBLIES FLOOR-CEILING ASSEMBLIES
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