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Division 07 – Thermal and Moisture Protection
OPL Design No. CEJ 425 P
07 84 00 Fire stopping
07 84 53 Building Perimeter Fire stopping
Page 3 of 6
Date Revised: November 5, 2010
©Intertek
Project No: G100141291SAT-007
at the slip-track (deflection channel)
after the sandwiched wall surface
(Item 2D) is installed. Form the joint
using two juxtaposed edges of the
sandwiched wall surface (Item 2D)
as the sides and create the back of
the joint using the exposed steel
face
of
slip-track
(deflection
channel) (Item 2C). Locate the 3/4
in. horizontal joint directly below and
parallel
to
the
perimeter
joint
protection (Item 3). Optional Joint
System: Install a nominal 1/2 in.
polyethylene backer rod into the 3/4
in. horizontal joint in contact with the
steel face of slip-track (deflection
channel. Cover the nominal 1/2 in.
polyethylene backer rod using a
silicone,
endothermic,
or
Intumescent sealant. Only Intertek
Certified
Sealant
Manufacturer’s
product meeting the above min.
requirements.
D. Sandwiched Wall Surface: Install
packing material (Item 3A) and
reinforcing angle (Item 3C), then
apply and secure a min. 5/8 in.
thick, 48 in. wide by 96 in. long,
exterior grade fiberglass sheathed
gypsum board to steel stud framing
(Item 2B) with min. 1-1/4 in. long
Type S drywall screws 12 in. on
center in field and 8 in. on center at
perimeter
created
by
the
cantilevered tracks (Items 2B & 2C).
Do
not
attach
exterior
grade
fiberglass sheathed gypsum board
to slip-track (deflection channel)
(Item 2C). Alternate Cementitious
Backer Units: Use min. 5/8 in. thick
cement based boards attached to
steel stud framing (Item 2B) with
min. 1-1/4 in. long Type S drywall
screws 12 in. oc in field and 8 in. on
center at perimeter created by the
cantilevered tracks (Items 2B & 2C).
Do not attach 5/8 in. thick cement
based
boards
to
slip-track
(deflection channel) (Item 2C). Butt
all edges of all 5/8 in. thick cement
based boards tightly together and
cover joints with glass fiber mesh
tape
covered
with
compatible
cementitious coating.
E. Optional Vision Glass Panels: Size
and install glass panels into curtain
wall framing according to the curtain
wall
system
manufacturer's
guidelines. Use a min. 1/4  in. thick,
clear, heat-strengthened (HS) glass
or tempered glass sized for the
window framing, which allows the
vision glass panels to be secured
between the notched shoulder of the
framing and pressure bar. When
required
by
the
manufacturer,
secure vision glass panels with a
thermal break (rubber extrusion),
pressure bar (aluminum extrusion),
min. 1/4-20 x 5/8 in. long screws,
and
a
snap
face
(aluminum
extrusion).
Optional
Window
Framing: Framing material shall be
non-combustible.
Locate
window
framing at least 4-1/2  in. above the
top surface of the floor assembly.
F. Optional Curtain Wall Clips: (Not
shown) When desired, affix min. 20
GA 1 x 1 in. steel angle using 5/8 in.
long sheet metal screws to the
vertical framing (Item 2B) and to the
surface
of
the
concrete
floor
assembly (Item 1) using min. 1/4 in.
diameter by 1 in. long concrete
screws.
G. Optional Curtain Wall Insulation:
(Not shown) When desired, install
curtain wall insulation above or
below the perimeter joint protection
(Item 3). When used, secure the
insulation in accordance with the
manufacturer’s
installation
instructions. Mineral wool or glass
fiber batt insulations are acceptable.
Only Intertek Certified Mineral Wool
Manufacturer’s product meeting the
above min. requirements.
H. Optional
Interior
Curtain
Wall
Surface: (Not shown) When desired,
install an interior curtain wall surface