Blower door and smoke pencil test

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Uploaded by on Apr 27, 2010

The blower door depressurizes the house and causes air to be sucked into the home through small cracks and openings. Here you see an exterior door installed and no sealant was placed under the lower sill prior to installing the unit. Notice the volume of air leaking into the building. The reverse will allow moisture entry.

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Education

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