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1. Wall Assembly -
The 3 or 4 hr fire-rated gypsum board/steel stud wall assembly shall be
constructed of the materials and in the manner specified in the individual U400
or V400 Series Wall and Partition Designs in the UL Fire Resistance Directory
and shall include the following construction features:
A. Studs - Wall
framing shall consist of steel channel studs. Steel studs to be min 3-5/8 in.
wide and spaced 24 in. OC.
B. Gypsum Board* -
Multiple layers of min 1/2 in. thick gypsum board. The gypsum board type,
thickness, number of layers and orientation shall be as specified in the
individual Wall and Partition Design.
The
hourly F Rating of the firestop system is equal to the hourly fire rating of the
wall assembly in which it is installed.
2.
Cables - Aggregate cross-sectional area of cables in sleeve to be min 8
to max 34 percent of the cross-sectional area of the sleeve. Cables to be
tightly bundled. The annular space shall be min 1/4 in. to max 1-1/4 in. Cables
to be rigidly supported on both surfaces of the wall assembly. Any combination
of the following types and sizes of cables may be used:
A. Max RG59/U (or smaller)
coaxial cable with fluorinated ethylene insulation and jacketing.
B. Max 62.5/48 fiber optic
cable with PVC insulation and jacket.
C. Max 4 pair No. 24 AWG
(or smaller) copper conductor data cable with PVC insulation and jacketing.
3.
Firestop System - The firestop system shall consist of the following:
A. Firestop Device* —
Threaded steel sleeve device incorporating flat washers secured by threaded
couplers. Device shall be installed around cables in accordance with the
accompanying installation instructions. Device provided in nom 1, 2 and 4 in.
sizes. Max diam of opening in wall for 1, 2 and 4 in. size devices are 1-1/4,
2-7/16 and 4-1/2 in. respectively.
UNIQUE FIRE STOP PRODUCTS INC
— Threaded Sleeve
B. Packing Material -
Min 4 pcf mineral wool batt insulation packed into opening as a permanent form
throughout full length of firestop device except for recess at each end of the
device to accommodate the required thickness of fill material.
C. Fill Void or Cavity
Materials* - Putty - Min 1 in. thickness of fill material applied within
annulus, flush both ends of firestop device.
UNIQUE FIRE STOP PRODUCTS INC —
*Bearing the
UL Classification Mark |
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