The complete source for building, designing, and remodeling green homes
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Love Is More Important Than Building Science
A Thanksgiving story
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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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Understanding Air Change Rates
There's a lot more to it than just the amount of air flowing into and out of a room
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Cold-Climate Attic Air-Sealing
A Minnesota builder's method for ensuring a continuous air/vapor control layer
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Improving Indoor Air With a DIY Portable Air Cleaner
You will need a box fan, MERV-13+ filters, cardboard, and tape
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FAQ: Air Conditioning and High Humidity
Indoor air cools quickly, but the equipment doesn't run long enough to reduce humidity
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Designing Return Filter Grille Boxes
The key is having enough space to minimize pressure drop
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Understanding Manual J Occupant Loads
How many people? Where and when do they get counted? How much do they contribute?
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Integrating Solar Electric and Solar Thermal Panels
An award-winning system provides electricity, heats and cools the home, heats the domestic hot water and pool, and will easily get this home to net-zero total-energy use
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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
