Through-penetrations through fire-rated wall assemblies and floor-ceiling assemblies are protected by approved penetration firestop systems tested in accordance with California Building Code section 714, ASTM E 814, or UL 1479. The firestop systems maintain an F rating not less than the required rating of the assembly penetrated, with floor-ceiling assemblies additionally requiring a T rating of not less than one hour. 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 WALL ASSEMBLY ASTM E 814 APPROVED FIRESTOP SYSTEM THROUGH-PENETRATION AS DEFINED BY CBC SEC. 714 RATED FLOOR/ CEILING ASSEMBLY WALL ASSEMBLIES FLOOR-CEILING ASSEMBLIES
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