Insulation Around Metal Chimney

Yes if the particular metal chimney system was not tested with an airtight firestop attic insulation shield.

Insulation around metal chimney.

As listed where shown in the table above means that the acceptable fire clearance distances for those chimney types must match or comply with the manufacturer s instructions. And creating hot spots in the metal exterior shell if its airflow around the chimney wouldn t airsealing be a bad thing for the chimney in this case. Leaving more than around 1 11 2 inches in overlap can cause some difficulties when attempting to install the liner. The installation instructions for the specific flue vent connector or metal.

As such it can be used to insulate a chimney. Airflow through the 2 airspace or just 2 clearance to combustibles. Notes to the metal chimney fire clearance table above. Those clearance spacings are normally found in at least two locations.

Remove the insulation from its kit and lay it out upon the ground foil side down. Place the liner in the middle of the insulation material and begin wrapping the liner allowing for at least 1 inch in overlap along the seam. Finally prepare for adding insulation foam or additional fiberglass batts by installing a second piece of vertical sheet metal that provides a 2 inch airspace around and parallel to the chimney. How to insulate a metal flue pipe.

This makes it an ideal insulation material for use in areas that experience high temperatures.