Attic Insulation Around Fireplace Flue

Insulating your chimney liner helps to.

Attic insulation around fireplace flue.

However if upon inspection. Insulating around a fireplace prevents drafts. 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. Attic insulation around furnace flues sometimes it can be helpful to put the cart in front of the horse.

Fireplaces emit a comforting glow during cold winter nights but if they are poorly designed they may take more heat out of your house than they put into it. Although the cellulose insulation piled up around the gas flue in an attic in the photo above is an extreme example we find missing shields around gas flues in attics occasionally. More often there s a similar problem. 1 prevent problematic heat transfer from hot masonry to dry home frames in turn decreasing the risk of combustion.

Fiberglass insulation is naturally fire resistant. 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. Insulation has been sprayed inside the shield eliminating the required air gap. Because the pipe gets hot building codes usually require 1 inch of clearance from metal flues 2 inches from masonry chimneys to any combustible material including insulation.

The opening around a furnace or water heater flue or chimney can be a major source of warm air moving in the attic. As such it can be used to insulate a chimney. Apply a thick bead of high temperature caulk the flue on one side. Most all insulation manufacturers recommend a 3 clearance to any heat producing device be maintained.

If the point where your chimney passes through your wall or roof is badly insulated there is a lot of heat passing through that area and. The projects recommended in this guide can usually be completed in a day or two and will provide beneits for years to come. Insulating around these ixtures see page 2 2 attic air sealing and adding insulation are do it yourself projects if your attic is accessible and not too dificult to move around in.