Attic Air Sealing Foam

Then finish up by sealing the access hatch with self sticking foam weatherstrip photos 10 and 11.

Attic air sealing foam.

Attic space insufficient attic insulation poor air sealing and uninsulated ductwork are all common problems that will lead to uncomfortable rooms and make your home less efficient. Foam or caulk small gaps in your attic while most of the air leaks in your attic are probably covered up by insulation you can detect these air leaks by looking for patches of dirty or dark insulation. Any hole in your ceiling is called a thermal bypass or air leak. Attics are like a superhighway for unwanted air and pests.

Attic air sealing lights fans plumbing stacks chimneys etc. You might also notice some patches of ice or frost. Use canned minimally expanding spray foam daptex plus window door foam sealant 7 for 16 ounces. Air sealing the most common attic air leaks electrical plumbing and hvac contractors use your attic to conceal the wires pipes and ducts that comprise the mechanical systems in your home.

1 many contractors don t know enough about building science or the products they use. 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. One huge benefit of the spray foam insulated attic is that conditioned air leakage from the ac furnace duct system is contained and used to condition the attic. We spray foam around most of these including around light fixtures bathroom fans open wall cavities and plumbing stacks.

Apply self adhesive foam weatherstrip tape to the top edge of the stop. The dirt comes from dusty air leaking into your attic. Seal insulate and reduce energy costs how to seal your attic. Without air sealing your attic you are allowing warm air to escape from your home carrying with it your hard earned winter heating money.

Spray foam is considered a high end insulation because of the cost and because it is seen as a fix all solution for insulation or air sealing. Most people just add insulation to their attic this will not stop the escaping warm air. Unfortunately it s a labour intensive process during a time where good labour is hard to find. Air sealing your attic and ducts installing blown cellulose insulation and insulating ductwork will eliminate these problems.

When we seal the attic with spray foam it s as tight as a butter tub. In a vented attic all of that expensive airflow is lost to the environment.