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ASTM E779 is a standard test method used to determine the air leakage rate of a building. This method, issued by the ASTM, involves the use of a blower door,…

Blower door testing equipment is an essential tool used by builders, energy auditors, and weatherization contractors to evaluate a building’s airtightness. There are several manufacturers of blower door testing equipment…

In the world of construction, one important aspect that should not be overlooked is air leakage testing. This testing is commonly referred to as the “blower door test” and is…

The world of residential building is changing. Builders and compliance officers are finally catching on to the importance of air sealing and air leakage testing and there are big strides…