Understanding
the UL Fire Resistance Directories
Joint Tape
and Compound: (not shown) Vinyl or casein, dry or premixed joint compound applied in two coats to joints and
screw heads of outer layers. Paper tape, nom 2 in. wide, embedded in first
layer of compound over all joints of outer panels.
6
8
Siding,
Brick, or Stucco: (Optional, not shown) - Aluminum, vinyl or steel siding, brick veneer
or stucco, meeting the requirements of local code agencies, installed over
gypsum panels. Brick veneer attached to studs with corrugated metal wall ties
attached to each stud with steel screws, not more than each sixth course of
brick.
7
Furring Channels: (Optional, not shown, for
single or double layer system) - Resilient furring channels
fabricated from min 25 MSG corrosion-protected steel, spaced a max of 24 in.
OC. Flange portion attached to
each intersecting stud with 1/2 in. long Type S-12 steel screws.