Fire Protection · F-RGA8X

Penetration through Horizontal Assembly

Materials

Concrete Steel Masonry / CMU Glass / Glazing Metal (misc.)

Elements

Walls Floors / Slabs Insulation Roof / Floor Openings

About this detail

This firestop system detail shows a metallic pipe, conduit, or tubing penetrating a lightweight or normal weight concrete floor or wall assembly. The annular space around the penetrant is packed with a minimum 2-inch thickness of mineral wool batt insulation, or polyethylene backer rod where applicable. A firestop caulk fill material such as Minnesota Mining & Mfg Co CP 25WB+ is installed flush with each surface of the floor or wall assembly to achieve the required hourly F-ratings of 2, 3, or 4 hours. The assembly accommodates nominal pipe, tube, or conduit diameters ranging from 1/2 inch to 30 inches depending on the specific fire rating table requirements. The penetrant must be rigidly supported on both sides of the floor or wall assembly.

Max Annular Space In. SECTION A-A Metallic Pipes (a) Min 2 in thickness of mineral wool batt insulation required in annular space. (b) Min 1 in. thickness of mineral wool batt insulation required in annular space on both sides of floor or wall assembly. Min 1 in. thickness of caulk to be installed flush with each surface of floor or wall assembly. MINNESOTA MINING & MFG CO - CP 25WB+. *Bearing the UL Classification Marking SYSTEM NO. C-AJ-1044 (FORMERLY SYSTEM NO. 319) 1/2 - 12 1/2 - 6 1/2 - 12 1/2 - 20 1/2 - 20 1/2 - 12 22 - 30 1 to 3/8 3 to 1/4 1 to 3/8 1 to 1/4 2 2 3 1/4 2 1/2 - 6 1 3/8 2 A A 4 1/2 - 12 Min Floor Thkns In. 2 1/2 2 1/2 4 1/2 5 1/2 Nom Pipe Tube or Conduit Diam In. F Rating Hr 3 3 3 3 3 2 2 2 2 1 1 1 1/2 1/4 (a) 1 1/2 Min Caulk Thkns In. 1 (b) 4 3 2 4 1 1. FLOOR OR WALL ASSEMBLY - LIGHTWEIGHT OR NORMAL WEIGHT (100-150 PCF) CONCRETE. EXCEPT AS NOTED IN TABLE UNDER ITEM 4, MIN THICKNESS OF SOLID CONCRETE FLOOR OR WALL ASSEMBLY IS 4-1/2 IN. FLOOR MAY ALSO BE CONSTRUCTED OF ANY MIN 6 IN. THICK UL CLASSIFIED HOLLOW CORE PRECAST CONCRETE UNITS *. WHEN FLOOR IS CONSTRUCTED OF HOLLOW CORE PRECAST CONCRETE UNITS, PACKING MATERIAL (ITEM 3) AND CAULK FILL MATERIAL (ITEM 4) TO BE INSTALLED SYMMETRICALLY ON BOTH SIDES OF FLOOR, FLUSH WITH FLOOR SURFACE. WALL ASSEMBLY MAY ALSO BE CONSTRUCTED OF ANY UL CLASSIFIED CONCRETE BLOCKS*. MAX DIAM OF OPENING IS IN SOLID LIGHTWEIGHT OR NORMAL WEIGHT CONCRETE. FLOOR IS 32 IN. MAX DIAM OF OPENING IN FLOOR CONSTRUCTED OF HOLLOW-CORE PRECAST CONCRETE UNITS IS 7 IN. SEE CONCRETE BLOCKS (CAZT) AND PRECAST CONCRETE UNITS (CFTV) CATEGORIES IN THE FIRE RESISTANCE DIRECTORY FOR NAMES OF MANUFACTURERS. 2. THROUGH PENETRANTS - ONE METALLIC PIPE, CONDUIT OR TUBING TO BE INSTALLED EITHER CONCENTRICALLY OR ECCENTRICALLY WITHIN THE FIRESTOP SYSTEM. MAX ANNULAR SPACE BETWEEN PIPE, CONDUIT OR TUBING AND EDGE OF THROUGH OPENING OR SLEEVE IS DEPENDENT ON THE PARAMETERS SHOWN IN ITEM 4. MIN ANNULAR SPACE BETWEEN PIPE OR CONDUIT AND EDGE OF THROUGH OPENING IS ZERO IN. (POINT CONTACT). 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: 3. PACKING MATERIAL - POLYETHYLENE BACKER ROD OR NOM 1 IN. THICKNESS OF TIGHTLY-PACKED MINERAL WOOL BATT OR GLASS FIBER INSULATION 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 CAULK FILL MATERIAL (ITEM 4). 4. FILL,VOID OR CAVITY MATERIAL* - CAULK - APPLIED TO FILL THE ANNULAR SPACE FLUSH WITH TOP SURFACE OF FLOOR. IN WALL ASSEMBLIES, REQUIRED CAULK THICKNESS TO BE INSTALLED SYMMETRICALLY ON BOTH SIDES OF WALL, FLUSH WITH WALL SURFACE. AT POINT CONTACT LOCATION BETWEEN PENETRANT AND SLEEVE OR BETWEEN PENETRANT AND CONCRETE, A MIN 1/4 IN. DIAM BEAD OF CAULK SHALL BE APPLIED AT TOP SURFACE OF FLOOR AND AT BOTH SURFACES OF WALL. THE HOURLY F RATINGS AND THE MIN REQUIRED CAULK THICKNESSES ARE DEPENDENT UPON A NUMBER OF PARAMETERS, AS SHOWN IN THE FOLLOWING TABLE: 5. DO NOT CUT OR DRILL THROUGH WALL STUDS OR STRUCTURAL SLABS UNLESS SPECIFICALLY DETAILED ON APPROVED DRAWINGS. A. STEEL PIPE - NOM 30 IN DIAM (OR SMALLER) SCH 10 (OR HEAVIER) STEEL PIPE B. IRON PIPE - NOM 30 IN DIAM (OR SMALLER) CAST OR DUCTILE IRON PIPE C. CONDUIT - NOM 6 IN DIAM (OR SMALLER) RIGID STEEL CONDUIT D. CONDUIT - NOM 4 IN DIAM (OR SMALLER) STEEL ELECTRICAL METALLIC TUBING E. COPPER TUBING - NOM 6 IN DIAM (OR SMALLER) TYPE L (OR HEAVIER) COPPER TUBE F. COPPER PIPE - NOM 6 IN DIAM (OR SMALLER) REGULAR (OR HEAVIER) COPPER PIPE F RATINGS--2, 3, AND 4 HR (SEE ITEMS 2A AND 4) T RATING--0 HR L RATING AT AMBIENT - 2 CFM/sq ft L RATING AT 400° F - LESS THAN 1 CFM/sq ft 4 1/2 4 1/2 4 1/2 4 1/2 4 1/2

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