Sample Firestopping Detail 3.pdf
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- Solicitation number
- IFB-36C77625B0036
About this file
This document is a technical specification sheet for a fire protection product detailing an insulated pipe through penetration system (System No. C-BJ-5003) from 3M Fire Protection Products. The specification covers a firestop system designed for concrete floor or wall assemblies with specific requirements for pipe penetrations, including:
Key technical specifications include a 4-hour fire rating, 1-2 hour temperature ratings, and specific requirements for pipe diameter, pipe covering, and firestop materials. The system is designed for nominal 4-inch diameter copper pipes or 12-inch diameter steel pipes, with pipe coverings of 1-2 inch thick hollow cylindrical heavy density glass fiber units. The firestop system uses intumescent wrap strips and 3M caulk or sealant to fill annular spaces, with precise installation instructions for positioning and sealing the penetration to maintain fire resistance ratings.
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Text version
In su la te d P ip es
Th ro ug h
Pe ne tra tio ns
S er ie s C on cr et e
3Fire Protection Products www.3m.com/firestop
Product Support Line 1-800-328-1687
C B J
C-BJ-5003 • 1 of 1
System No. C-BJ-5003 September 07, 2004
(Formerly System No. 91-E) F Rating – 4 Hr
T Ratings – 1 and 2 Hr (See Item 2) L Rating At Ambient – 2 CFM/sq ft
L Rating At 400 F – Less Than 1 CFM/sq ft
1. Floor or Wall Assembly – Min 5-1/2 in. thick reinforced lightweight or normal weight (100-150 pcf) concrete. Wall may also be constructed of any UL Classified Concrete Blocks*. Diam of opening to be 1 in. to 1-1/4 in. larger than outside diam of insulated pipe. Max diam of opening is 18 in.
See Concrete Blocks (CAZT) category in the Fire Resistance Directory for names of manufacturers.
2. Pipe – Nom 4 in. diam (or smaller) Type L (or heavier) copper pipe or nom 12 in. diam (or smaller) Schedule 10 (or heavier) steel pipe centered in the opening and rigidly supported on both sides of the floor or wall assembly. When max 6 in. diam pipe is used, T Rating is 2
hr. When pipe is larger than 6 in. diam, T Rating is 1 hr.
3. Pipe Covering* – Nom 1 or 2 in. thick hollow cylindrical heavy density glass fiber units jacketed on the outside with an all service jacket.
Longitudinal joints sealed with metal fasteners or factory-applied self-sealing lap tape. Transverse joints secured with metal fasteners or with butt strip tape supplied with the product.
See Pipe and Equipment Covering – Materials* (BRGU) category in Building Materials Directory for names of manufacturers. Any pipe covering material meeting the above specifications and bearing the UL Classification Marking with a Flame Spread Index of 25 or less and a Smoke Developed Index of 50 or less may be used.
4. Firestop System – The details of the firestop system shall be as follows:
A. Fill, Void or Cavity Materials* – Wrap Strip – Nom 1/4 in. thick intumescent elastomeric material faced on one side with aluminum foil, supplied in 2 in. wide by 24 in. long strips. Two layers of the nom 2 in. wide strips tightly-wrapped around pipe covering (foil side exposed) and slid into annular space on each side of the floor or wall assembly such that the exposed edges are recessed 1/4 to 1/2 in.
from the floor or wall surfaces. Each layer is to be installed with a butted seam secured with aluminum foil tape.
3M COMPANY – FS-195+
B. Fill, Void or Cavity Materials* – Caulk or Sealant – Applied to fill the annular space (over edges of wrap strip layers) to a depth of 1/4 to 1/2 in., flush with both surfaces of floor or wall.
3M Company – CP 25WB+ caulk or FB-3000 WT sealant.
*Bearing the UL Classification Marking
Reprinted from the Online Certifications Directory with permission from Underwriters Laboratories Inc.
Copyright © 2010 Underwriters Laboratories Inc.®
File details come from the government source that posted it. Updated .