Telecommunications · T-RFDR7

Concrete and Ceiling Penetration Firestop Details

Materials

Elements

Walls Ceilings Floors / Slabs Decks Insulation Anchors / Embeds Roof / Floor Openings

About this detail

Concrete floor and ceiling penetrations utilize a firestop system for cables and conduits. An optional steel sleeve is installed through the floor or wall assembly. The firestop system incorporates a packing material consisting of a minimum three-inch thickness of four pounds per cubic foot mineral wool batt insulation firmly packed into the opening as a permanent form. Fill, void, or cavity materials consist of a minimum half-inch thickness of fire caulk or fire putty applied flush with the top surface of the floor, top edge of the sleeve, or both surfaces of the wall. Conduit restraints are anchored to the wall or slab as required, and caulk is applied at deck penetrations. Four-inch conduit sleeves are reamed and bushed with fire stopping at both ends to accommodate copper and fiber cables.

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