How To Insulate Around A Chimney In Attic

Turn the water heater or furnace off and allow the flue to cool to the touch.

How to insulate around a chimney in attic.

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. 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. How to insulate a metal flue pipe.

Lay a two by four on top temporarily compressing the insulation to a manageable. Plan to pull up the flooring and layer new insulation on top of the old. Using the hose clamp feature tighten the bottom connector onto the liner. Joe shows you how to make an attic insulation shield when space is an issue.

Cut slots 1 inch deep and a few inches apart along the top and bend the tabs in. Measure the circumference of the flue. Measure from the bottom termination point to the top of the chimney s crown and then add 1 foot. Cut two flat sheets of aluminum flashing that are 14 inches long and narrow enough to fit between the ceiling joists around the flue.

Because the simplest and cheapest way to insulate an attic is to add material to the floor. Step 1 preparing your liner. Form an insulation dam to prevent insulation from contacting the lue pipe. Cut slots about 2 inches deep along the bottom and bend out the tabs.

But if the floor is covered in plywood you can t stuff enough insulation beneath it to do the job sufficiently not even in warm climates. This makes it an ideal insulation material for use in areas that experience high temperatures. Cut enough aluminum from the coil to wrap around the lue plus 6 inches.