13-921-002F-rating - I and 2 Hr.
T—rating - 0 and 1/2 Hr.
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1. Wall Assembly The I or 2 hr fire-rated gypsum board/stud wall assembly shall be constructed of the materials and In the manner specified in
the individual U300 or U400 Series Wall or Partition Design in the UL Fire Resistance Directory and shall include the following construction features.
A. Studs - Wall framing may consist of either wood studs or steel channel studs. Wood studs to consist of nom 2 by 4 in. (51 by 102 mm) lunber
spaced 16 in. (406 mm) OC. Steel studs to be min 3-1/2 In. (89 mm) wide and spaced max 24 in. (610 Trim) OC.
B. Gypsum Board* - Thickness, type, number of layers and fasteners as specified in the individual Wall and Partition Design. Max diam of opening
is 10-5/8 in. (270 mm).
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. Through Penetrant - One metallic pipe, conduit or tube to be Installed eccentrically or concentrically within the firestop system. Pipe, conduit or
tubing may be installed at an angle not greater than 45 degrees from perpendicular. The annular space between the pipe, conduit or tube and the
periphery of the opening shall be min 0 in. (0 mm, point contact) to max 2 in. (51 mm). Pipe, conduit or tube to be rigidly supported on both
sides of the wall assembly. The following types and sizes of metallic pipes, conduits and tubes may be used:
A) Steel Pipe Nom 8 in. (203 mm) diam (or smaller) Schedule 5 (or heavier) steel pipe.
B) Iron Pipe Nom 8 in. (203 mm) diam (or smaller) cost or ductile iron pipe.
C) Conduit - Nom 6 in. (152 mm) diam (or smaller) rigid steel conduit, nom 4 in. (102 mm) diam (or smaller) steel electrical metallic tubing
(EMT) or nom 4 in. (102 mm) diam (or smaller) flexible steel conduit.
D) Copper Pipe Nom 4 in. (102 mm) diam (or smaller) Regular (or heavier) copper pipe.
E) Copper Tube Norn 4 in. (102 mm) diam (or smaller) Type L (or heavier) copper tube.
2A. Through Penetrating Product* - Flexible Metal Piping - As an alternate to Item 2, one nom 1-1/4 In. (32 mm) diam (or smaller) steel flexible
metal pipe to be installed either concentrically or eccentrically within the firestop system. The annular space between the pipe and the periphery of
the opening shall be min 0 in. (0 mm, point contact) to max 2 in. (51 mm). Pipe to be rigidly supported on both sides of the wall assembly.
OMEGA FLEX INC
GASTITE, DIY OF TITEFLEX
WARD MFG LLC
3. Fill, Vold or Cavity Material* - Sealant - Min 5/ 8 In. (16 mm) thickness of fill material applied within annulus, flush with both surfaces of wall
assembly. At point contact location, min 1/ 4 in. (6 mm) diam bead of fill material applied at metallic pipe/gypsum board interface on both
surfaces of wall. SS
SPECIFIED TECHNOLOGIES INC - SpecSecl LCI Sealant
*Bearing the UL Classification Mark 1—or 2—HOUR FIRE RATED THROUGH PENETRATION FIRESTOP FOR
SINGLE METAL PIPE THROUGH GYPSUM WALLS USING TREMstop WBM
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