Air Sealing In The Attic

We spray foam around most of these including around light fixtures bathroom fans open wall cavities and plumbing stacks.

Air sealing in the attic.

While you are in the attic sealing air leaks look for any ductwork that may be up there. If your hatch rests directly on the moldings like ours did add 2 1 2 in wide stops around the. Most people just add insulation to their attic this will not stop the escaping warm air. Attic air sealing is the priority.

Attics are often under insulated and under sealed leading to wasted energy and wasted spend by the homeowners. Then finish up by sealing the access hatch with self sticking foam weatherstrip photos 10 and 11. If you have ducts that aren t sealed you are probably leaking a lot of conditioned air into your attic space. Lights fans plumbing stacks chimneys etc.

Home comfort problems often start in the attic where poor insulation and numerous air leaks create problems for your heating and cooling system and make your home uncomfortable. Other items like chimneys and recessed lights require special methods. The boat suffers and has a few holes in the bottom of it. Imagine that you have a small boat and steered it into a cluster of jagged rocks.

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. Any hole in your ceiling is called a thermal bypass or air leak. Without air sealing your attic you are allowing warm air to escape from your home carrying with it your hard earned winter heating money. Sealing duct leaks can improve the efficiency of your hvac system by around 20.