Blower Door
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What Is the Building Leakage Curve?
How a blower-door test can estimate a home's pressure under normal operating conditions
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Talking to Contractors About Airtightness
How to work with your contractor to ensure you end up with a tight house
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An Energy Auditor’s Toolkit
Testing and commissioning houses requires a number of gadgets—many of which can be used across trades
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Using a Blower-Door Test and Interpreting the Results
An introduction to the technology and calculations for measuring a home’s energy performance
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Wingnut Blower-Door Testing
The amount of air leakage allowed by code is an informational eye-opener
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Using a Blower Door for Zonal-Pressure Testing
By now, most of us working in the green-building industry know what a blower door is. It’s a tool to measure the air tightness of a house. I’ve owned my…
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Blower Door Testing at the New ASHRAE Headquarters
A behind-the-scenes look at measuring air leakage in a 66,700-sq.-ft. building
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Is it Time to Move Away From ACH @50 Pascals?
Momentum is building to abandon ach50 in favor of cfm50 per square foot of shell area
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Things You Do Not Need
And a few things you do
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The Difficulty of Updating Georgia’s Energy Code
Trying to get airtightness below 7 ach50 has been a struggle
