How To Seal Attic Bypasses

We seal all attic bypasses using a spray foam.

How to seal attic bypasses.

Jon fabre senior market planning specialist at otter tail power company demonstrates a do it yourself approach to sealing air leaks in the attic bypass. Attic bypasses are hidden air leaks from the heated area of your home into your attic. If your attic is poorly insulated you could save money on your heating and cooling bills by insulating to adequate levels provided you first seal attic bypasses. Seal the foil to the frame with the caulk or adhesive and staple or nail it in place if needed.

These energy wasting drafts can be sealed by a specialized contractor. If your hatch rests directly on the moldings like ours did add 2 1 2 in wide stops around the opening. That s why sealing attic bypasses and air leaks in general is a major part of the minnesota energy challenge. 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.

Fan mounted to ceiling below attic. Then finish up by sealing the access hatch with self sticking foam weatherstrip photos 10 and 11. Expandable spray foam is great for larger seams and cracks and can provide a seal in a short amount of time. Finished rooms built into attics often have open cavities in the floor framing under the sidewalls or kneewalls.

The metal box that encloses an exhaust fan is usually not airtight and there is usually a gap between the box and ceiling. There are a couple fixes for most of your air leaks in your home. Apply a bead of caulk or adhesive around the opening. The spray foam insulates and seals any cracks or openings that allow airflow into your home s attic.

Because warm air rises it continuously moves up the bypasses and escapes into. A spray foam insulator or a caulk insulator can be used to fill in the cracks holes and seams leading up into your attic space. Check out our marketplace for a list of contractors in baltimore and keep. Figure 19 to repair use duct tape or caulk to seal gaps in the metal box and between joints and seams in the duct.

Get a professional to get your air under control and you probably won t need to hire an ice dam company to get your ice dams under control.