Chimney Chase Fire Blocking

Chimney chase fire blocking requirements.

Chimney chase fire blocking.

Clean the top of the opening cut a hole in the drywall or plywood to fit the pipe leave at least a 1 clearance between the materials and the pipe apply a bead of fire caulk or expandable foam to the top of the opening set the materials around the pipe securing the materials. Securing the chimney chase. Here is an open chimney chase as it passes through the attic. Therefore fire stops are put in to slow down the spread of a fire should it start.

Fire blocking perhaps 3 4 thick plywood or osb fire rated is intended to. An insufficient pitch of chase pan. In reality they don t stop the fire but they help slow it down from spreading to rapidly. Combustion air may be drawn into the burner either from a louvered closet door or from a properly installed air pipe from the outside or the attic terminating in the burner or within a foot of the.

No it won t actually start a fire but neither does a fpe breaker for the most part it is the overloaded or shorted wire that is the immediate cause the breaker just limits or contains the hazard. Fire blocking is a required part of safe construction to limit or contain a fire. A chimney fire should preferably stay in the chimney even at 1 500 degrees at least long enough to get the fire department there to save the roof. Fire stops are self describing.

The chimney chase must be. The fire rating and fire safety of the chimney will depend on proper. Water infiltration behind the siding. Any one problem with a chimney chase can lead to fire risk.

Chimney chase insulation is not normally used. They are installed to stop a fire in the chase area where the vent pipe runs through to get to the roof.