Cost Saving Firewalls

Cost Saving Two-Hour Firewall

BXUV.U360
Fire Resistance Ratings - ANSI/UL 263

Design No. U360
January 08, 1999

Bearing Wall Rating — 2 Hr.
Finish Rating — 20 Min.
Load Restricted for Canadian Applications — See Guide BXUV7

1. Wood Studs — Nominal 2 by 4 in. spaced 16 in. on center, effectively firestopped at top and bottom of wall.

2. Fiber, Sprayed* — Spray applied cellulose insulation material. The fiber is applied with water to interior surfaces in accordance with the application instructions supplied with the product. Applied to completely fill the cavities between wood studs of both sides of wall to a nominal depth of 3-1/2 in. Minimum dry density of 4.3 pounds per cubic ft.

NU-WOOL CO INC — Cellulose Insulation.

3. Gypsum Board* — Any UL Classified 5/8 in. thick wallboard, 4 ft wide, paper surfaced, with beveled, square, or tapered edges, applied vertically. Wallboard fastened 6 in. OC at joints and edges and 12 in. OC in the field with No. 6 by 1-5/8 in. long bugle head drywall screws.

See Gypsum Board (CKNX) category for names of manufacturers.