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What is a Blower Door Test?

blower door test in Syracuse

A blower door test is used during an energy audit, and is able to locate air leaks by attaching a fan to a doorway to depressurize the house.

Zerodraft conducts blower door tests before and after air sealing to measure the effectiveness of their work.

An infrared camera may be used during a blower door test to determine where air is leaking into your home.


The average untreated home has the equivalent air leakage to leaving a window open for 24 hours a day!

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