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Reference:
UL Design L501
Exterior Wall Fire-Rated System
1-Hour
Fire-Resistance Rating
Thickness.........................11" (279
mm)
Weight.......................13.5 psf (66 kg/m2)
Framing
Set joists 16" (400 mm)
o.c. Cross-brace and firestop as required.
Flooring
Apply subflooring with face
grain perpendicular to joist with joints staggered.
Finished flooring wood
structural grade T&G Douglas Fir plywood with face
grain perpendicular to joists with joints staggered.
Apply
one layer of 5/8" (15.9 mm) GlasRoc® Sheathing
Type X with the long dimension perpendicular to joists
with 1 7/8" (48 mm) nails spaced 6" (150
mm) o.c. Finish and tape joints.
Additional UL Design Listings for Floor-Ceiling
Systems:
Steel Joist Floor - Ceiling: G520 and G531
Wood Joist Floor - Ceiling: L508 |
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