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Division 07 – Thermal and Moisture Protection
OPL Design No. CEJ 421 P
07 84 00 Fire stopping
07 84 53 Building Perimeter Fire stopping
Page 5 of 6
Date Revised: June 20, 2013
©Intertek
Project No: G100141291SAT-007
between
the
vertical
framing
members (Item 2B) and 1/8 in.
greater than the width of the steel-
stud framing. (Cut packing material
(Item 3A) 24-1/4 in. long for a max.
24  in. spacing between vertical
framing members (Item 2B). Cut
packing material (Item 3A) 6-1/8 in.
wide for 6 in., 18 GA steel "C"
studs.) Allow no voids between
vertical framing members (Item 2B)
or between sandwiched wall surface
and packing material (Item 3A). (2)
Install pieces of packing material
(Item 3A) in the max. 3  in. nominal
joint width (joint width at installation)
between the interior face of the steel
stud framing (Item 2B) and the
vertical face of the concrete floor
assembly (Item 1). Cut and install
the packing material (Item 3A) with
the fibers running vertically (parallel)
to the slab edge (joint face). Cut
packing material (Item 3A) 3-3/4 in.
wide for a max.3  in. nominal joint
width.
Compress
the
packing
material (Item 3A) min. 20% and
install in nominal joint width.
Method 2 – Two-step installation
process. (1) Install pieces of packing
material (Item 3A) between the
vertical framing members (Item 2B).
Cut and install the packing material
(Item 3A) with the fibers running
vertically (parallel) to the slab edge
(joint face). Cut the pieces of
packing material (Item 3A) at least
1/4 in. longer than the distance
between
the
vertical
framing
members (Item 2B). (Cut packing
material (Item 3A) 24-1/4 in. long for
a max. 24 in. spacing between
vertical framing members (Item 2B).)
Cut packing material (Item 3A) 9 in.
wide for 6 in., 18 GA steel "C" studs.
Install the packing material (Item 3A)
(min. compression 33%). Allow no
voids
between
vertical
framing
members (Item 2B) or between
sandwiched
wall
surface
and
packing material (Item 3A). (2) Install
pieces of packing material (Item 3A)
in the max. 3  in. nominal joint width
(joint width at installation) between
the interior face of the steel stud
framing (Item 2B) and the vertical
face of the concrete floor assembly
(Item 1). Cut and install the packing
material (Item 3A) with the fibers
running vertically (parallel) to the
slab edge (joint face). Cut packing
material (Item 3A) 4-1/2 in. wide for
a max. 3  in. nominal joint width.
Compress the packing material (Item
3A) min. 33% and install in nominal
joint width.
B.
CERTIFIED MANUFACTURER: Hilti,
Inc.
CERTIFIED PRODUCT:  Joint Spray or
Sealant
MODEL: Firestop Joint SprayCFS-SP
WB or Silicone Joint Spray CFS-SP SIL
Fill, Void or Cavity Material: Spray
apply over exposed surface of the
packing material (Item 3A). Apply at
the thickness specified in Table 1
and overlap the material a min. 1/2
in. onto the adjacent curtain wall
assembly and concrete floor slab
assembly.
When
the
spraying
process is stopped and the applied
liquid cures to an elastomeric film
before
application
process
is
restarted, then overlap the edge of
the cured material at least 1/8 in.
with the spray.
C. Reinforcing
Angle:
Required
for
packing material (Item 3A) installed
using Method 1 when mineral wool
batt insulation in Optional Curtain
Wall Insulation (Item 2E) or gypsum
board in Optional Interior Curtain
Wall Surface (Item 2F) is not
present. Mount a min. 20GA, 1-1/2
in. x 1-1/2  in. galvanized steel angle
to the vertical framing members
(Item 2B) using min.#6 x 1.25 in.
Bugle head SD PT screws. Notch
the ends of each piece so that the
vertical leg contacts to the 1-5/8 in.