Air Sealing Attic Flats, Walls, Sloped Ceilings, Rim Joists, and Mud Sills

Air sealing is typically the #1 priority in any building. You can have R-700, but it won't matter much if the air you are heating simply leaks away thru holes in your home. As in the picture to the left, the chase around a chimney is often one of the largest air barrier breaches. Simple and cost effective air sealing offers a very quick payback and will save you money and energy.

Air sealing a chimney chase.

A typical air barrier breach in an existing home.