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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 2 of 6
Date Revised: November 5, 2010
©Intertek
Project No: G100141291SAT-007
1. CONCRETE FLOOR ASSEMBLY: Min.
two-hour rated concrete floor assembly
(Item 1) made from either lightweight or
normal weight concrete with a density of
100-150 pcf, with a min. thickness of 4
to 4-1/2 in., respectively, at the slab
edge (joint face). Optional – Provided
the two-hour concrete floor assembly
(Item 1) rating is not compromised, the
overall slab thickness may vary to
accommodate various blockout depths
(longitudinal recesses) formed in the
concrete,
to
house
an
optional
architectural joint system. The blockout
width may also vary without restriction.
2. CURTAIN
WALL
ASSEMBLY:
The
curtain wall assembly shall incorporate
the following construction features:
A. Mounting Attachment: (Not shown)
Attach the steel-stud framing to the
structural framing according to the
curtain
wall
manufacturer's
instructions.
When
required,
connect the mounting attachments
to the concrete floor assembly (Item
1) at the slab edge (joint face),
according
to
the
curtain
wall
manufacturer's instructions. Use a
max.
10
ft.
distance
between
mounting attachments.
B. Steel-Stud Framing: Use min. 6 in.
by 1-5/8 in., 16 GA steel "C" studs
cut to length as vertical framing
members spaced a max. of 16 in. on
center (oc), secure the ends of the
steel studs in compatible sized 20
GA steel tracks, using min. #6 x -1/2
in. pan or hex head screws.
Cantilever the floor track nominally 2
in. past the vertical face of the
concrete floor assembly (Item 1).
Secure the floor track to the top of
the concrete floor assembly (Item 1)
with 1/4 in. diameter x 2 in. long
concrete screws (or either powder
actuated
fasteners
or
steel
expansion bolts having equivalent
strength and performance) spaced a
max. of 24 in. oc. Insert the ceiling
track
inside
the
“slip-track
(deflection channel)” to create a 3/4
in. gap between channels to allow
for downward movement. Alternate
Lighter Gauge Slotted Ceiling Track:
Alternate to ceiling track above, use
min.
24
GA
galvanized
steel
channel with slotted flanges sized to
accommodate min. 6 in. by 1-5/8 in.,
16 GA steel "C" studs. Alternate
Framing Box Sill: Alternate to steel-
stud framing (Item 2B) created
between window assembly and top
of the concrete floor assembly (Item
1),
use
multiple
min.
16
GA
galvanized structural steel tracks or
steel studs placed horizontally and
secured together using min. #6 x 1/2
in. pan or hex head screws or welds
and capped top and bottom with
floor and ceiling tracks or use
multiple min. 16 GA galvanized
punched steel tracks or steel studs
with
all
openings
sealed
with
mineral wool placed horizontally and
secured together using min. #6 x 1/2
in. pan or hex head screws or welds
and capped top and bottom with
floor and ceiling tracks.
C. Slip-Track (Deflection Channel): As
part of the exterior wall assembly
(Item 2) and head of wall joint
system, attach a min. 16 GA
channel, sized to accommodate
steel-stud framing (Item 2B),  to the
bottom
of
the
concrete
floor
assembly (Item 1) using 1/4 in.
diameter x 2 in. long concrete
screws spaced nominally 12 in. on
center. Cantilever
the
slip-track
(deflection channel) nominally 2 in.
past the vertical face of the concrete
floor
assembly
(Item
1).
The
cantilevered tracks (Items 2B & 2C)
create a min. 4 in. deep by 2 in.
wide reveal. Attach reinforcing angle
(item 3C) to top of slip-track
(deflection
channel).
Create
an
exterior max. 3/4 in. horizontal joint
(exterior head of wall joint system)