Electrical · E-ZCVZ6

Firestop Penetration Detail through Concrete Floor

Materials

Elements

Floors / Slabs Expansion / Control Joints Insulation Roof / Floor Openings

About this detail

Insulated cables or conduit pass through an opening in a fire-rated concrete floor slab. The annular space is sealed using a fire barrier caulk or intumescent sealant, with damming material such as backer rod, fiberglass, or mineral wool installed below. The firestop system is tested for up to four hours in accordance with ASTM E 814, UL 1479, and CAN/ULC S115, as well as for static construction joint systems per ASTM E 1966.

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