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You are here: Home / Green Terms / Blower Door Tests

Blower Door Tests

May 15, 2018 by Ariel

Blower door tests measure the air tightness of a building and determine the home’s air infiltration rate. How it works: A certified auditor mounts a powerful fan onto an exterior door. The fan pulls air out of the house, lowering the air pressure inside. The higher outside air pressure then sneaks back into the house through all of the unsealed cracks and openings. It’s important that auditors use a calibrated door for this process. The calibrated blower door’s data allows the auditor to quantify the effectiveness of any air-sealing job by the amount of air leakage. That leakage is measured by the amount of air it takes (in cubic feet per minute) to change the air pressure in the house by 50 Pascals, or cfm50. A good rule of thumb is that your house should have a cfm50 equal to or less than its square footage.

 

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Filed Under: Green Terms, Green Terms "B" Tagged With: Blower Door Test, Green Terms

Meet Ariel

ArielAriel is a native Atlantan and has devoted her real estate career to the Atlanta community. She is a licensed REALTOR®, working in real estate for over 10 years. Ariel is a member of the National Association of REALTORS, Georgia Association of REALTORS, and the Professional Development Committee at the Atlanta Board of REALTORS. [Read More …]

Meet Elida

ElidaElida brings over two decades of real estate experience to her position as partner in Baverman & Associates. A graduate of Emory University School of Law, member of the National Association of REALTORS, the Atlanta Board of REALTORS, and the Georgia Bar Association, Elida has extensive knowledge of the real estate market and contract law. She is a Phoenix Award winner and Lifetime Member of the Atlanta Board of REALTORS Multi-Million Dollar Sales Club. Read More…

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