How To Seal Attic Fan For Winter

1 measure the widest part of the whole house fan working inside the room where the fan is located and not.

How to seal attic fan for winter.

If you are creative you can also use spray foam to glue your boxes together. Off the shelf products are available but would have cost me more however it would have significantly reduced my time in the attic. Another way to seal off an attic fan is to use thick plastic and insulation. Checking the seal once a week will ensure continual protection against losing heat through your attic fan.

Insulation can help reduce this heat exchange keeping your energy bills lower in winter. A hard wire runs directly from the. If your hatch rests directly on the moldings like ours did add 2 1 2 in wide stops around the opening. In my opinion the best solution would be to build a box out of rigid insulation board that has a hinged lid.

When you re done sealing your attic bypasses push the insulation back into place with an old broom handle or stick as you back out of the attic. Turn off the electricity to attic fan by unplugging or by disconnecting the hard wire from the junction box. Notch a hole for your wire and spray foam around the bottom and any gaps in the box. How to close an attic vent during the winter.

Set the grate aside. Remove the grate from the attic fan. This allows plenty of blown in insulation cellulose fiberglass rockwool etc to be installed in the attic without falling into the whole house fan.