Using the Blower Door and Thermal Imaging Camera to Locate Air Leaks

by Paul Cutting, Energy Planner A few weeks back a Decorah homeowner asked me to help locate air leaks in their flat roofed, mid-century home. We picked a cold day, where the temperature difference between the interior and exterior were great, and used the blower door to suck air out of the house and an infrared camera to find breaks in the building envelope. This particular house was built with

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