Blower door testing

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Diagnose problems in the building envelope with this simple, reliable tool. Air flowing in and out of a building can cause lots of problems; in fact, air leakage can account for 30 percent to 50 percent of the heat loss in…

Unmasking commercial energy loss

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The need to achieve high-performance buildings has prompted design changes that incorporate efficient use of energy and resources. One of these changes, the design, installation and testing of the building air barrier, has driven a dramatic increase in the…