Architectural · A-WA5P7

Firestop System through Concrete Floor or Wall Penetration

Materials

Concrete Reinforced Concrete Steel Masonry / CMU

Elements

Walls Floors / Slabs Insulation Reinforcing Roof / Floor Openings

About this detail

A through-penetration assembly in a minimum 4-1/2-inch thick reinforced normal or lightweight concrete floor or wall contains an opening with a maximum diameter of 6 inches. Optional metallic or nonmetallic sleeves may be cast or grouted into the assembly flush with surfaces. The firestop system consists of a minimum 3-3/4-inch thickness of 4 pcf mineral wool batt packing material compressed at least 50 percent, and a minimum 1/4-inch thickness of 3M FB-1000 NS or FB-1003 SL sealant applied within the annulus flush with the top surface.

This material was extracted and drawn by 3M Fire Protection Products from the 2007 edition of the UL Fire Resistance Directory. Blanks Through Penetrations 0000 Series Concrete CAJ 3 Fire Protection Products www.3m.com/firestop Product Support Line: 1-800-328-1687 Choose option 4 for FAX ON DEMAND 11 System No. C-AJ-0060 March 05, 2007 F Rating – 3 Hr T Ratings – 1, 2 and 3 Hr (See Item 2) L Rating At Ambient – Less Than 1 CFM/sq ft L Rating At 400 F – 2 CFM/sq ft W Rating – Class 1 1. Floor or Wall Assembly – Min 4-1/2 in. (114 mm) thick reinforced light-weight or normal weight (100-150 pcf or 1600-2400 kg/m 3 ) concrete. Wall may also be constructed of any UL Classified Concrete Blocks *. Max diam of opening is 6 in. (152 mm). See Concrete Blocks (CAZT) category in the Fire Resistance Directory for names of manufacturers. 2. Sleeves (Optional) – The following sleeves may be used: A. Metallic Sleeve – Nom 6 in. (152 mm) diam (or smaller) Schedule 10 (or heavier) steel pipe sleeve cast or grouted into floor or wall assembly, flush with floor or wall surfaces. As an alternate, nom 6 in. (152 mm) diam (or smaller) sleeve fabricated from nom 0.019 in. (0.48 mm) thick galv steel cast or grouted into floor or wall assembly flush with floor or wall surfaces. T Rating is 1 Hr when metallic sleeve is used. B. Nonmetallic Sleeve – Nom 6 in. (152 mm) diam (or smaller) Schedule 40 polyvinyl chloride (PVC) pipe cast or grouted into floor or wall assembly, flush with floor or wall surfaces. T Rating is 2 Hr when PVC sleeve is used. T Rating is 3 Hr when no sleeve is used. 3. Firestop System – The firestop system shall consist of the following: A. Packing Material – Min 3-3/4 in. (95 mm) thickness of min 4 pcf (64 kg/m 3 ) mineral wool batt insulation firmly packed into opening as a permanent form so that the width of the wool is compressed at least 50 percent. Packing material to be recessed from top surface of floor or from both surfaces of wall as required to accommodate the required thickness of fill material. B. Fill, Void or Cavity Material * – Sealant – Min 1/4 in. (6 mm) thickness of sealant applied within the annulus, flush with the top surface of floor or with both surfaces of wall. Sealant to lap onto top surface of concrete floor to attain W Rating. 3M COMPANY – FB-1000 NS (floors or walls) or FB-1003 SL *Bearing the UL Classification Mark C-AJ-0060 • 1 of 1

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