How To Insulate A Chimney In The Attic

Remove the insulation between the joists where the flue is located to clear an area about 18 inches away from the flue on each side.

How to insulate a chimney in the attic.

The attic is unheated. Fibreglass is not considered non combustable correct. How to insulate an unfinished attic. As such it can be used to insulate a chimney.

Don t you still need a 2 clearance to combustables. I m considering wrapping the chimney with insulation in the attic. It is often installed in gaps around the chimney and flue to prevent airflow that can siphon the heat away from the interior of the building. Installing a vapor barrier.

You can insulate around masonry chimneys after airsealing with mineral or fiberglass batts no foam or cellulose directly against the chimney. To block the air pathway the technician cut 26 gauge metal flashing to fit over the gaps and sealed the joints between the metal and the masonry chimney and the wood framing using high temperature caulk in this example 3m fire barrier sealant. Joe shows you how to make an attic insulation shield when space is an issue. Preparing an attic for insulation.

Some larger gaps weren t in direct contact with the masonry. This makes it an ideal insulation material for use in areas that experience high temperatures. It seems to me that this is a huge thermal bridge from the interior to the exterior. Apply a thick bead of high temperature caulk the flue on one.

Enjoy the videos and music you love upload original content and share it all with friends family and the world on youtube. To install loose fill insulation. Fiberglass insulation is naturally fire resistant. To install insulation batts and blankets.

Anybody have any wisdom to shed. You can wrap the masonry with a 3 5 fiberglass batt and then blow cellulose up to the batts.