An insufficient pitch of chase pan.
Chimney chase fire blocking.
Weak framing for the exterior load.
The fire rating and fire safety of the chimney will depend on proper.
Chimney chase fire blocking requirements.
Fire blocking perhaps 3 4 thick plywood or osb fire rated is intended to.
Lack of fire blocking.
If the metal chimney pipe is not properly installed heat build up inside the uninsulated chimney chase.
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.
Here is an open chimney chase as it passes through the attic.
Water infiltration behind the siding.
Chimney chase insulation is not normally used.
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.
Any one problem with a chimney chase can lead to fire risk.
In reality they don t stop the fire but they help slow it down from spreading to rapidly.
The chimney chase must be.
They are installed to stop a fire in the chase area where the vent pipe runs through to get to the roof.
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.
Therefore fire stops are put in to slow down the spread of a fire should it start.
Securing the chimney chase.