Sealing Attic Air Leaks

While you are in the attic sealing air leaks look for any ductwork that may be up there.

Sealing attic air leaks.

These cutouts can leak small amounts of air if they are not sealed properly. If you have a finished attic seal behind the kneewalls finished rooms built into attics often have open cavities in the floor framing under the side walls or kneewalls. Usually air leaks occur in these spaces. Here s how to locate the leak spots and plug them without spending a lot of money.

Attic air sealing is the priority your focus should be on the attic when you begin air sealing. Attics are like a superhighway for unwanted air and pests. Sealing duct leaks can improve the efficiency of your hvac system by around 20. Keep your home comfortable and critter free by air sealing attic hatch doors which can be real air leakers between a bedroom ceiling and the attic.

Again look for signs of dirty insulation to indicate air is moving through. If you have ducts that aren t sealed you are probably leaking a lot of conditioned air into your attic space. Chances are your ceiling has the equivalent of a 2 ft. Lights and fans require electricity to function therefore holes are cut into your ceiling s drywall.

It s usually the hardest place to air seal because the cramped space underneath the eaves where the roof rafters rest on the outer wall makes it hard to move your hands and head. Imagine that you have a small boat and steered it into a cluster of jagged rocks. Air sealing the attic perimeter air sealing the wall plate around the perimeter of your attic blocks air from escaping around the outer edges of your home. Small air leaks into uninsulated attic space are a major source of heat loss in many homes.

Square hole that s acting like a chimney drafting expensive heated.