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Design No. U355
(Exposed to Fire On Interior Face Only)
Bearing Wall Rating — 1 Hr
Finish Rating — 23 Min
1. Wood Studs — Nom 2 by 4 in. spaced 16 in. OC. Cross braced at midheight and effectively firestopped at top and bottom of wall.
2. Batts and Blankets* — Unfaced glass fiber batts, min 3-1/2 in. thick, min density of 0.72 pcf, pressure fit in wall cavities between studs and cross bracing. See Batts and Blankets* — (BZJZ) category for names of Classified Companies.
2A. Fiber, Sprayed* — As an alternate to Batts and Blankets (Item 2) — Spray applied cellulose insulation material. The fiber is applied with water to completely fill the enclosed cavity in accordance with the application instructions supplied with the product. Nominal dry density of 3.0 lb/ft3 . Alternate application method: The fiber is applied with U.S. Greenfiber LLC Type AD100 hot melt adhesive at a nominal ratio of one part adhesive to 6.6 parts fiber to completely fill the enclosed cavity in accordance with the application instructions supplied with the product. Nominal dry density of 2.5 lb/ft3 .
U S GREENFIBER L L C — Cocoon2 Stabilized or Cocoon-FRM (Fire Rated Material)
3. Gypsum Board* — 5/8 in. thick 4 ft wide gypsum boards, paper or vinyl surfaced, with beveled, square, or tapered edges, applied vertically. Wallboard nailed 8 in. OC with 6 d cement-coated nails or No. 6 bugle head drywall screws, 1-7/8 in. long.
TEMPLE-INLAND FOREST PRODUCTS CORP — Types T (finish rating 20 min), VPB-Type T (finish rating 20 min), WR-Type T (finish rating 20 min), Type T SHTG (finish rating 20 min), FRX-6, VPBX-6, FRWRX-6, TP-5, TG-C, or FRX-6 Exterior Gypsum Soffit Board.
AMERICAN GYPSUM CO — Type AGX-1 (finish rating 23 min), Type AGX-11 (finish rating 26 min) or Type AG-C .
BEIJING NEW BUILDING MATERIALS CO LTD — Type DBX-1 (finish rating 24 min).
BPB AMERICA INC — Type 1, Type SF3 (finish rating 20 min), FRPC, EGRG (finish rating 23 min), ProRoc Type X (finish rating 26 min), ProRoc Type C.
BPB CANADA INC — ProRoc Type C, ProRoc Type X or ProRoc Type Abuse-Resistant.
CANADIAN GYPSUM COMPANY — Type AR (finish rating 26 min), Type C (finish rating 26 min), Type FCV (finish rating 26 min), Type IP-X1 (finish rating 26 min), Type IP-X2(finish rating 26 min), Type SCX (finish rating 26 min), Type SHX (finish rating 26 min), Type WRC (finish rating 26 min), Type WRX (finish rating 26 min), Type IP-AR (finish rating 26 min), Type IPC-AR (finish rating 26 min).
G-P GYPSUM CORP, SUB OF GEORGIA-PACIFIC CORP — Type 5 (finish rating 26 min), Type 6 (finish rating 23 min), Type 9 (finish rating 26 min), Type C (finish rating 26 min), Type DGG (finish rating 20 min), Type GPFS1 (finish rating 20 min), Type GPFS2 (finish rating 20 min), Type GPFS6 (finish rating 26 min), Type DS, Type DAP, Type DD (finish rating 20 min).
LAFARGE NORTH AMERICA INC — Type LGFC2 (finish rating 20 min), Type LGFC3 (finish rating 20 min), Type LGFC6 (finish rating 26 min), Type LGFC6A (finish rating 34 min), TypeLGFC2A , Type LGFC-C (finish rating 20 min), Type LGFC-C/A.
NATIONAL GYPSUM CO — NC-Type FSK (finish rating 20 min), FSK-G (finish rating 20 min), Type FSW (finish rating 20 min), Type FSW-2 (finish rating 24 min), Type FSW-3(finish rating 20 min), FSW-5 , Type FSW-G (finish rating 20 min), FSK-C, FSW-C or Type FSMR-C.
PABCO GYPSUM, DIV OF PACIFIC COAST
BUILDING PRODUCTS INC — Types C, PG-2 (finish rating 20 min), PG-3 (finish rating 20 min), Types PG-3W, PG-5W (finish rating 20 min), Type PG-4 (finish rating 20 min), Type PG-6 (finish rating 23 min), Types PG-3WS, PG-5WS (finish rating 20 min), Types PG-5, PG-9 (finish rating 26 min) or Type PG-C.
PANEL REY S A — Type PRX.
SIAM GYPSUM INDUSTRY (SARABURI) CO LTD — Type EX-1 (finish rating 26 min)
STANDARD GYPSUM L L C — Type SGC (finish rating 20 min), Type SGC-3 (finish rating 20 min)Type SG-C or SGC-G (finish rating 20 min).
UNITED STATES GYPSUM CO — Type AR (finish rating 26 min), Type SCX (finish rating 26 min), Type C (finish rating 26 min), Type WRX (finish rating 26 min), Type WRC (finish rating 26 min), Type IP-X1 (finish rating 26 min), Type FCV (finish rating 26 min), Type IP-X2 (finish rating 26 min), Type SHX (finish rating 26 min),Type FRX-G (finish rating 29 min), Type IP-AR (finish rating 26 min), Type IPC-AR (finish rating 26 min).
USG MEXICO S A DE C V — Type AR (finish rating 26 min), Type C (finish rating 26 min), Type FCV (finish rating 26 min), Type IP-X1 (finish rating 26 min), Type IP-X2(finish rating 26 min), Type SCX (finish rating 26 min), Type SHX (finish rating 26 min), Type WRC (finish rating 26 min), Type WRX (finish rating 26 min), Type IP-AR (finish rating 26 min), Type IPC-AR (finish rating 26 min).
3A. Gypsum Board* — (As an alternate to Item 3) — Nom 3/4 in. thick, installed as described in Item 3.
CANADIAN GYPSUM COMPANY — Types AR, IP-AR.
UNITED STATES GYPSUM CO — Types AR, IP-AR.
USG MEXICO S A DE C V — Types AR, IP-AR.
3B. Gypsum Board* — (As an alternate to Items 3 and 3A) — 5/8 in. thick, 2 ft wide, tongue and groove edge, applied horizontally to one side of the assembly. Secured as described in Item 3. Joint covering (Item 5) not required.
CANADIAN GYPSUM COMPANY — Type SHX
UNITED STATES GYPSUM CO — Type SHX
USG MEXICO S A DE C V — Type SHX
4. Steel Corners Fasteners — (Optional) — (Not Shown) — For use at wall corners. Channel shaped, 2 in. long by 1 in. high on the back side with two 1/8 in. wide cleats protruding into the 5/8 in. wide channel, fabricated from No. 24 gauge galv steel. Fasteners applied only to the end or cut edge (not along tapered edges) of the wallboard, no greater than 2 in. from corner of wallboard, max spacing 16 in. OC. Nailed to adjacent stud through tab using one No. 6d cement-coated nail per fastener. Corners of wallboard shall be nailed to top and bottom plate using No. 6d cement-coated nails.
5. Joints and Nail Heads — Wallboard joints covered with tape and joint compound. Wallboard nail heads covered with joint compound.
6. Sheathing — Foamed Plastic* — 7/16 in. thick min, 4 ft wide sheathing, with square edges. Sheathing is applied vertically. Sheathing fastened with 1 in. long E. G. roofing nails spaced 8 in. OC along the edges and 12 in. OC in the field.
THE DOW CHEMICAL CO — Type Thermax
7. Exterior Wall Coverings — Installed in accordance with the manufacturer's Installation Instructions.
A. Aluminum Siding — 0.019 in. min thick painted aluminum meeting AAMA 1402. Fastened over foam plastic sheathing to wood studs using 1-1/2 in. long aluminum nails.
B. Wood Siding — 5/8 in. min thick lumber, plywood or OSB wood based siding. Fastened over foam plastic sheathing to wood studs using 10d galv box nails spaced 6 in. OC on perimeter and 12 in. OC in the field.
C. Fiber-Cement Siding — 0.250 in. min thick fiber-cement based siding. Fastened over foam plastic sheathing to wood studs using min 1-1/2 in. long galv nails.
*Bearing the UL Classification Mark