Chimney Firestop In Attic

If the chimney is fully enclosed through the attic an attic insulation shield is not required.

Chimney firestop in attic.

Once in the attic the builder will frame a chimney chase. Joe shows you how to make an attic insulation shield when space is an issue. This shield cannot fit or is not used you must enclose the attic portion of the chimney in a framed enclosure always maintain 2 inch air space clearance to combustibles. Inspectors should be on the lookout for fireplace and wood stove flues that lack adequate fire rated sheetrock or metal flashing firestopping as in the photograph at right.

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 closet floor. Firewalls that separate condominium units are often penetrated by utilities that serve multiple units. Between the attic and the living space. One major safety concern that is unique to factory built fireplaces is the need to have an enclosed chimney chase with firestop in the attic.

Install the attic insulation shield as follows. 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. It should run from the roof decking to the ceiling joists for support. Many homes with fireplaces built before 1992 may be missing these important safety features.

Or they may enclose the chase after running the pipe.