Cost Saving Firewalls

UL Online Certifications Directory

BXUV.U369
Fire Resistance Ratings - ANSI/UL 263

Design No. U369
October 20, 2004

Bearing Wall Rating- 2 Hr.
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.