75753336
Jul 19, 1999
Dec 26, 2000
FIRE-RESISTANT AND/OR ABUSE-RESISTANT STUD WALL OR FLOOR/CEILING SYSTEMS, NAMELY, A STUD WALL OR FLOOR/CEILING ASSEMBLY ENCLOSED EITHER (1) ON BOTH SIDES WITH FIBER-CEMENT PANELS OR (2) ENCLOSED ON BOTH SIDES WITH BOTH GYPSUM BOARD AND FIBER-CEMENT PANELS OR (3) ENCLOSED ON ONE SIDE WITH GYPSUM BOARD AND ENCLOSED ON THE OTHER SIDE WITH FIBER-CEMENT PANELS OR (4) ENCLOSED ON ONE SIDE WITH GYPSUM BOARD AND ENCLOSED ON THE OTHER SIDE WITH BOTH GYPSUM BOARD AND FIBER-CEMENT PANELS OR (5) ENCLOSED ON ONE SIDE WITH FIBER-CEMENT PANELS AND ENCLOSED ON THE OTHER SIDE WITH NON-METAL PANELS OR (6) ENCLOSED ON ONE SIDE WITH BOTH GYPSUM BOARD AND FIBER-CEMENT PANELS AND ENCLOSED ON THE OTHER SIDE WITH NON-METAL PANELS
Nonmetallic Building Materials