System No. C-AJ-1297

F Rating — 3 Hr

T Rating — 0 Hr

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, conduit or tubing to be either concentrically or eccentrically within the firestop system. The annular space between pipes, conduits or tubing and periphery of opening shall be min 0 in. (point contact) to max 1-1/2 in. Pipe, conduit or tubing to be rigidly supported on both sides of floor or wall assembly. The following types and sizes of metallic pipes, conduits or tubing may be used:

A. Steel Pipe Nom 4 in. diam (or smaller) Schedule 10 (or heavier) steel pipe.

B. Iron Pipe Nom 4 in. diam (or smaller) cast or ductile iron pipe.

C. Steel Pipe Nom 4 in. diam (or smaller) steel electrical metallic tubing or steel conduit.

3. Firestop System The firestop system shall consist of the following:

A. Packing Material Min 3-3/4 in. thickness of min 4 pcf mineral wool batt insulation firmly packed into opening as a permanent form. Packing material to be recessed from bottom surface of floor or from either surface of wall as required to accommodate the required thickness of fill material.

B. Fill, Void or Cavity Material* — Caulk Min 3/4 in. thickness of fill material applied within the annulus, flush with bottom surface of floor or with either surface of wall. RECTORSEAL — Biostop 500+ Caulk