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Building Science
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…
Green Building News
Government Orders More Efficient Furnace Fans

The Department of Energy says that its new energy efficiency standards will save U.S. consumers $9 billion

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Using a Blower Door for Zonal-Pressure Testing