October 24, 2019
A blower door test is a way to check how airtight a structure is. It is designed to check for air leaks in walls, attics and mechanical penetrations. (Courier stock image)
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Last week, a homeowner called with concerns about “white dust” particles all over their home. They would vacuum and dust and, the next day, the “white dust” particles were back.
By Sandy Griffis
October 24, 2019