Home Sealing

The Best way to seal your home is with Air Tightness-see our Air Tightness section for more info
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Ducts

Look for holes, tears, and other signs of leaking ducts and seal them using mastic or metal (foil) tape (never use ‘duct tape,’ as it is not long-lasting). Insulate all the ducts you can access (such as those in the attic, crawlspace, unfinished basement, or garage).  /

Chimney

Seal hidden air leaks to make your home more comfortable and energy efficient. Always find and seal air leaks before adding more insulation. Chimneys or furnace flues that penetrate your attic floor have holes or gaps around them that can allow the air in your home to escape through the attic, increasing your energy bill and causing more drafts. Around chimney and furnace flues that can get hot, cover the gaps with metal flashing and caulk small gaps with high temperature caulk. /

Plumbing Stack

Plumbing stacks, vents, ducts, or electrical wires often have holes or gaps around them that can allow the air in your home to escape through the attic, increasing your energy bill and causing drafts. Seal small gaps with caulk and seal holes up to 3 inches in diameter with spray foam. Cover spaces larger than 3 inches with a piece of foam board and seal with spray foam. /

Attic Hatch or Door

Weather strip and insulate your home’s attic hatch or door to help keep your home more comfortable and save energy. You can do this with weatherizing materials and insulation or with a pre-made attic cover.  /