Importance

Loading Importance Indicators...

Abstract

A fire barrier is provided for use in connection with a structural wall having a hole through which a thermoplastic conduit normally extends. The barrier includes a housing having a side wall extending around the hole and the conduit, and defining an interior space extending between the conduit and the housing. A first end of the housing is attached to the structural wall, and the opposing end is closed around the conduit. A first support matrix is provided within the housing adjacent the second end, and defines a plurality of voids extending radially between the conduit and the side wall of the housing. A second support matrix provided adjacent the first axial end defines a plurality of longitudinal voids extending in a direction substantially parallel to the length of the conduit. An intumescent material substantially fills the voids of the support matrices so that as a fire adjacent the wall causes failure of the conduit, the intumescent material expands in the directions of orientation of the voids and forms a barrier that prevents the fire from propagating through the hole.

Loading the Abstract Image...

First Claim