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Division 07 – Thermal and Moisture Protection
OPL Design No. CEJ 245P
07 84 00 Fire stopping
07 84 53 Building Perimeter Fire stopping
Page 3 of 3
Date Revised: June 20, 2014
©Intertek
Project No: 100216789SAT-004i
surfaces
of
the
perimeter
joint
treatment without deforming it. Either
mineral wool** or fiberglass batt
insulation** may be used. (** Listed
with Intertek)
3.  PERIMETER
JOINT
PROTECTION:
The perimeter joint (linear opening) shall
not exceed an 8 in. nom. joint width
(joint width at installation) and the
perimeter
joint
treatment
shall
incorporate the following construction
features:
A.  Packing Material: Use a min. 4 in.
thick, 4 pcf density, mineral wool
batt insulation** installed with the
fibers running parallel to the slab
edge and curtain wall. (**Listed with
Intertek)  The packing material shall
be compressed 50% in the nominal
joint width. Compress the batt
insulation into the perimeter joint
such that the top surface of the batt
insulation is flush with the top
surface of the concrete floor slab.
Splices (butt joints) in the lengths of
mineral wool batt insulation are to
be tightly compressed together.
Reference the Introduction to Fire
Resistive Joint Systems Section of
this Directory for more details on
how to determine the cut width of
the insulation to be installed in the
nominal joint width, and how to
determine
the
compressed
percentage of a known insulation
width installed in a known 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: To be
applied,
(sprayed,
brushed,
or
painted)
to
cover
the
exposed
surface of the mineral wool installed
in the perimeter joint. 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. If the spraying process is
stopped and the applied liquid cures
to an elastomeric film before process
is restarted, then overlap the edge of
the cured material at least 1/8 in.
with the spray. Reference Product
Section of this Directory for more
details about the Listed product.
C. Support Clips: (Not Shown –
Optional) Use standard Z-shaped
clips that are min. 20 GA galvanized
steel
with
the
following
nom.
dimensions: 1 in. wide by 3 in. high
with a 2 in. upper leg and 3 in. lower
leg.
** Cycling: Before testing, the spliced, test
specimen was cycled 500 times at 30 cpm in
accordance with ICBO ES AC 30 (Jan. 1997)
and ASTM E 1966.