Sample Firestopping Detail 1.pdf
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- Solicitation number
- IFB-36C77625B0036
About this file
This document is a technical specification sheet for a non-metallic pipe through penetration firestop system (System No. C-BJ-2007) from 3M Fire Protection Products. The specification details a two-hour fire-rated system for penetrating concrete floors or walls with nonmetallic pipes or conduits, specifically addressing PVC and CPVC pipes up to 2 inches in diameter.
The firestop system consists of a 6-inch thick concrete floor or wall with an opening 1/2 to 5/8 inches larger than the pipe's outside diameter, packed with 1-inch thick mineral wool or ceramic fiber insulation, and sealed with 1/2-inch thickness of 3M sealant (CP 25WB+, IC 15WB+, or FB-3000 WT). The system is rated for a 2-hour fire resistance (F Rating and T Rating) and a Class 1 water rating when using FB-3000 WT sealant. The specification provides detailed requirements for pipe types, support, packing material, and sealing methods to maintain fire resistance integrity.
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N o n -M e ta ll ic
P ip e s
T hr o ug h P en et ra tio ns
S er ie s C o nc re te
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| 3M Fire Protection Products | ||||||||
| www.3M.com/firestop | 1-800-328-1687 | Through | Penetrations | Applicators | and | Specifiers | Guide |
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C-BJ-2007 • 1 of 1
System No. C-BJ-2007 March 27, 2009 F Rating – 2 Hr T Rating – 2 Hr
W Rating – Class 1 (See Item 3)
1. Floor or Wall Assembly – Min 6 in. (152 mm) thick reinforced lightweight or normal weight (100-150 pcf or 1600 - 2400 kg/m3) concrete.
Floor assembly may also be constructed of any min 6 in. (152 mm) thick UL Classified hollow-core Precast Concrete Units*. Wall may also be constructed of any UL Classified Concrete Blocks*. Diam of opening through floor or wall to be 1/2 to 5/8 in. (13 to 16 mm) larger than the outside diam of through-penetrant (Item 2). Max diam of opening is 3 in. (76 mm).
See Concrete Block (CAZT) and Precast Concrete Units (CFTV) categories in the Fire Resistance Directory for names of manufacturers.
2. Through Penetrants – One nonmetallic pipe or conduit to be centered within the firestop system. Pipe or conduit to be rigidly supported on both sides of floor or wall assembly. The following types and sizes of nonmetallic pipes or conduits may be used:
A. Polyvinyl Chloride (PVC) Pipe – Nom 2 in. (51 mm) diam (or smaller) Schedule 40 solid core PVC pipe for use in closed (process or supply) piping system.
B. Rigid Nonmetallic Conduit+ – Nom 2 in. (51 mm) diam (or smaller) Schedule 40 PVC conduit installed in accordance with Article 347 of the National Electrical Code (NFPA No. 70).
C. Chlorinated Polyvinyl Chloride (CPVC) Pipe – Nom 2 in. (51 mm) diam (or smaller) SDR13.5 CPVC pipe for use in closed (process or supply) piping systems.
3. Firestop System – The details of the firestop system shall be as follows:
A. Packing Material – Nom 1 in. (25 mm) thickness of min 4 pcf (64 kg/m3) mineral wool batt insulation or ceramic (alumina silica) fiber blanket firmly packed into opening as a permanent form on both sides of floor and wall. Packing material to be recessed from both surfaces of floor or wall as required to accommodate the required thickness fill material.
B. Fill, Void or Cavity Material* – Caulk or Sealant – Min 1/2 in. (13 mm) thickness of fill material applied within the annulus, flush with both surfaces of floor or wall.
3M COMPANY – CP 25WB+, IC 15WB+ or FB-3000 WT sealant (Note: W Rating applies only when FB-3000 WT is used. CP 25WB+ not suitable for use with CPVC pipes.)
*Bearing the UL Classification Mark Reprinted from the Online Certifications Directory with permission from UL
© 2013 UL LLC
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