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E. Gypsum Board* — (CKNX) — Min 5/8 in. (16 mm) thick gypsum board sheets installed on each side of wall. Wall to be constructed as
specified in the individual U400, V400 or W400 Series Design in the UL Fire Resistance Directory except that a max 2 in. (51 mm) wide gap
shall be maintained between the gypsum board of the wall assembly below the purlin and the gypsum board of the cripple wall. Top edge
of gypsum board of wall assembly to be max 2 in. (51 mm) below top of ceiling deflection channel. Bottom edge of gypsum board of cripple
wall to be flush with top of ceiling deflection channel. Screws securing gypsum board to steel studs of wall assembly to be located 2-1/4 in.
to 2-1/2 in. (57 to 64 mm) below flange of ceiling deflection channel. Screws securing gypsum board of cripple wall to be driven into studs
and runners of cripple wall. No screws are to be driven into flanges of ceiling deflection channel.
F. Gypsum Board* — (CKNX) — Min 5/8 in. (16 mm) thick "rip strip" of gypsum board installed to cover first layer of gypsum board on cripple
wall and to lap min 3 in. (76 mm) onto gypsum board of wall assembly on each side of wall. The "rip strip" of gypsum board is to be the
same material used for the wall assembly and is to be secured to the studs and runners of the cripple wall. No screws are to be driven into
flanges of ceiling deflection channel. Joints of "rip strip" to be offset from joints of gypsum board on wall assembly.
Max separation between top of wall assembly gypsum board and bottom of cripple wall gypsum board (at time of installation of joint system)
is 2 in. (51 mm). The joint system is designed to accommodate a max 100 percent compression or extension from its installed width.
2. Nonrated Horizontal Assembly — The nonrated horizontal assembly shall be constructed of the materials and in the manner described in the
individual Roof Deck Constructions (Guide TGKX) in the UL Roofing Materials and Systems Directory and shall include the following
construction features:
A. Purlin — Min 16 ga coated steel. Max spacing as specified in the individual Roof Deck Construction.
B. Lateral Bracing — (Not Shown) - As required.
C. Batts and Blankets* - Insulation — Any faced compressible glass-fiber blanket insulation having a min 6 in. (152 mm) thickness before
compression and a min density of 0.6 pcf (9.6 kg/m3). Insulation draped over purlins prior to installation of panel clips (Item 2F) and/or
metal roof deck panels (Item 2D). Side edges of the batts shall be butted or overlapped a max of 3 in. (76 mm).
See Batts and Blankets (BZJZ) category in the UL Fire Resistance Directory or Batts and Blankets (BKNV) category in the UL Building
Materials Directory for names of manufacturers.
D. Metal Roof Deck Panels* — Min 26 ga coated steel. Panels continuous over two or more spans. Roof panel end laps, if required, centered
over purlins with min 3 in. (76 mm) panel overlap as specified in the individual Roof Deck Construction. A line of tube sealant or tape
sealant may be used at panel end and side laps.
See Metal Roof Deck Panels (TJPV) category in the UL Roofing Materials and Systems Directory for names of manufacturers.
E. Fasteners — Fasteners used for panel-to-purlin and panel-to-panel connections to be self-tapping, hex-head, plated steel or stainless steel
screws with either an integral or a separate steel washer fitted with a compressible sealing washer. Fastener type, length, pilot hole diam
and spacing to be as specified in the individual Roof Deck Construction.
F. Roof Deck Fasteners* - Panel Clips — (Not Shown) - Panel clips used for panel-to-purlin connections to be secured to purlin through
insulation as specified in the individual Roof Deck Construction.
See Roof Deck Fasteners (TLSX) category in the UL Roofing Materials and Systems Directory for names of manufacturers.
G. Thermal Spacer Blocks — (Not Shown) - Expanded polystyrene strips cut to fit between panel clips (Item 1F) as specified in the individual
Roof Deck Construction. Thermal spacer blocks, when used, are to be installed between insulation (Item 2C) and metal roof deck panels
(Item 2D) over purlins.
3. Fill, Void or Cavity Material* (XHHW) — Caulk — Min 5/8 in. (16 mm) thickness of fill material installed to fill any gap between top of cripple
wall gypsum board and insulation (Item 2C) on each side of the wall. Additional sealant installed to fill annular space between purlin and
gypsum board "rip strip" (Item 1F) on both sides of wall. Additional nom 1/2 in. (13 mm) diam bead of sealant to be applied around perimeter of
purlin at its interface with the "rip strip" on each side of the wall.
HILTI CONSTRUCTION CHEMICALS, DIV OF HILTI INC — CP601S, CP606, FS-ONE Sealant
*Bearing the UL Classification Mark
CJD 0009
Reproduced by HILTI, Inc. Courtesy of
Underwriters Laboratories, Inc.
May 09, 2012