System No. C-AJ-5081

F Rating — 3 Hr

T Rating — 1 Hr

L Rating At Ambient — 9 CFM/sq ft

L Rating At 400 F — Less Than 1 CFM/sq ft

1. Floor or Wall Assembly Min 4-1/2 in. thick reinforced lightweight or normal weight (100-150 pcf) concrete. Wall may also be constructed of any UL Classified Concrete Blocks*. Max diam of opening is 6 in.See Concrete Blocks (CAZT) category in the Fire Resistance Directory for names of manufacturers.

2. Through Penetrants One metallic pipe or tubing to be installed either concentrically or eccentrically within the firestop system. Pipe or tubing to be rigidly supported on both sides of floor or wall assembly. The following types and sizes of metallic pipes or tubing may be used:

A. Steel Pipe Nom 2 in. diam (or smaller) Schedule 40 (or heavier) steel pipe.

B. Iron Pipe Nom 2 in. diam (or smaller) cast or ductile iron pipe.

C. Copper Tubing Nom 2 in. diam (or smaller) Type L (or heavier) copper tubing.

D. Copper Pipe Nom 2 in. diam (or smaller) Regular (or heavier) copper pipe.

3. Pipe Covering* Nom 1 in. thick hollow cylindrical heavy density (min 3.5 pcf) 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 tape supplied with the product. The annular space shall be min 3/4 to max 1-1/16 in.See Pipe and Equipment Covering — Materials (BRGU) category in the 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 firestop system shall consist of the following:

A. Packing Material (Optional) — Foam backer rod firmly packed into opening as a permanent form. 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 in. thickness of fill material applied within the annulus, flush with top surface of floor or with both surfaces of wall. RECTORSEAL — Biostop 500+ Caulk.