System No. C-AJ-2248

F Rating — 2 Hr

T Rating — 1-1/2 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 4 in.See Concrete Blocks (CAZT) category in the Fire Resistance Directory for names of manufacturers.

2. Nonmetallic Penetrants A max of three nonmetallic penetrants may be installed within the opening. Min separation between nonmetallic penetrants is 3/8 in. The annular space between noonmetallic penetrant and periphery of opening shall be min 5/16 in. to max 1-3/4 in. Through-penetrant shall be rigidly supported on both sides of floor or wall assembly. Any combination of the following types and sizes of nonmetallic penetrants may be used:

A. Electrical Nonmetallic Tubing (ENT)+ Nom 1 in. diam (or smaller) Electrical Nonmetallic Tubing . ENT installed in accordance with Article 331 of the National Electrical Code (NFPA No. 70).See Electrical Nonmetallic Tubing (FKHU) category in the Electrical Construction Material Directory for names of manufacturers.

B. Optical Fiber Raceways+ Nom 1 in. diam (or smaller) Optical Fiber Raceways. Optical fiber raceway installed in accordance with Article 770 of the National Electrical Code (NFPA No. 70). See Optical Fiber Raceway (QAZM) category in the Electrical Construction Material Directory for names of manufacturers.

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

A. Packing Material Min 3-1/2 in. thickness of min 4 pcf mineral wool batt insultion firmly packed into opening as a permanent form. Packing material to be recessed from bottom 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* - Caulk Min 1 in. thickness of fill material applied within the annulus, flush with bottom surface of floor or with both surfaces of wall. RECTORSEAL — Biostop 500+ Caulk