Up to 40% of a home's heat loss or gain comes through air leakage. To make matters worse, that same air almost always carries moisture with it that can condense as it cools on its way into or out of the house. Then comes mold, rot — ugliness. These details offer solutions to the most common home air leaks. Only performance testing — usually with a blower door or fog machine — can identify the leaks in your buildings, but acting on this collection will address the lion's share of air leaks in most homes.
Blog: Blower Door Basics
Blog: Pinpointing Leaks With a Fog Machine
Video: Blower-Door-Directed Air Sealing
This article is only available to GBA Prime Members
Sign up for a free trial and get instant access to this article as well as GBA’s complete library of premium articles and construction details.Start Free Trial
Already a member? Log in