Reference:
UL Design U411
Exterior Wall Fire-Rated System
2-Hour
Fire-Resistance Rating
Cavity thickness.............2-1/2" (64
mm)
Wall thickness.....................5" (124 mm)
Weight..........................11 psf (54 kg/m2)
Interior
Install insulation between studs.
Apply one layer of 5/8" (15.9
mm) ProRoc® Type
X gypsum board vertically to interior side
with 1" (25
mm) Type S steel screws spaced 16" (400 mm) o.c.
along edges and in the field. Joints must be offset
from joints on the opposite side.
Apply a face layer
of 5/8" (15.9 mm) ProRoc® Type
X gypsum board vertically to over base layer
with 1-5/8" (41
mm) Type S steel screws. Space fasteners 16" (400
mm) o.c. along edges and 12" (300 mm) o.c. along
floor and ceiling runners. Joints must be offset from
joints in the underlying layer. Tape and finish joints.
Exterior
Apply one layer of 5/8" (15.9
mm) ProRoc® Type
X gypsum board vertically to exterior side
with 1" (25
mm) Type S steel screws spaced 16" (400 mm) o.c.
along edges and in the field. Joints must be offset
from joints on the opposite side.
Apply a face layer
of 5/8" (15.9 mm) GlasRoc® Sheathing Type X vertically to each side with 1-5/8" (41
mm) Type S steel screws. Space fasteners 16" (400
mm) o.c. along edges and field and 12" (300 mm)
o.c. along the floor and ceiling runners. Joints must
be offset from joints in the underlying layer.
Additional UL Design
Listings for Steel Stud Systems:
U017, U418, U420, U421, U422, U434, U442, U450, U460, U465, U466, U467, U472, U473, U475, U487, U494, U501, U502, U504, U505, U506, U510, U512, U603, U615, U617, U622, U623, U626, U640, V417 and V419. |
