How to Air Seal Your Attic: The Secret Home Improvement BEFORE Attic Insulation

Home Performance Diagnostics Author Corbett Lunsford gives a tour of an attic air sealing jobsite in Chicago, describing how and why to do this in your own home's attic- only serious DIY fanatics need apply. Using blower door testing, duct tightness testing, zonal pressure testing, and infrared thermography, Green Dream Group pinpointed lots of opportunities for improvement in our client's attic floor! Top plates of interior and exterior walls, plumbing penetrations, chimneys, and electrical junctions.

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