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Reference:
UL Design U305
Exterior Wall Fire-Rated System
1-Hour
Fire-Resistance Rating
Cavity thickness.............3-1/2" (89
mm)
Wall thickness...............4-3/4" (121 mm)
Weight............................7 psf (34 kg/m2)
Interior
Install insulation between studs. Apply one layer of
5/8" (15.9
mm) ProRoc® Type X gypsum board vertically
or horizontally with 1-7/8" (48 mm) nails spaced
7" (175 mm) o.c. along edges and in the field.
Joints must be offset from joints on the opposite side.
Tape and finish joints.
Exterior
Apply one layer of 5/8" (15.9 mm) GlasRoc® Sheathing Type X vertically or horizontally with 1-7/8" (48 mm) nails spaced 7" (175 mm) o.c. along edges and in the field. Joints must be offset from joints on the opposite side.
Additional UL Design
Listings for Wood Stud Systems:
U322, U323, U324, U325, U326, U329,
U330, U332, U337, U338, U339, U341, U342, U354, U355, U357,
U358, U360. |
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