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Filling Rafter Bays With Fluffy Insulation
For years, building scientists have investigated whether fiberglass insulation or cellulose insulation can be used to insulate an unvented cathedral ceiling. In general, the answer has always been no, because…
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Wingnut Testing of Soffit-to-Ridge Venting, Round 3
In the first two rounds of soffit-to-ridge vent Wingnut testing (see Round 1 and Round 2 ), I used a simple and small easel test rig to simulate what happens…
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How to Look at a House like a Building Scientist (Part 2: Heat)
This article is the second in a series on various building diagnostic tools used to sleuth out problems in buildings. If you missed it, you may want to read Part…
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Phoenix Gives Net-Zero House Plans to Anyone Who Wants Them
Building a net-zero house in Phoenix, Arizona? The city will be happy to provide you with a full set of plans at no cost. The offer is part of the…
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Energy Department Reverses Light Bulb Standards
Widely used but relatively inefficient light bulbs that were headed for extinction next year have won a reprieve from the U.S. Department of Energy (DOE). First, the department issued a…
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How to Choose a Metal Roof
Metal roofing has a long history in the U.S. but until 20 years ago it was a bit player in residential construction with just a 3.6% share of the reroofing…
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Multifamily HVAC Woes
We work on thousands of multifamily housing units every year providing certification, consulting, and testing services for affordable and market rate developers. Our influence tends to be somewhat limited as…
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Frugal Happy: Epic House Update
Editor’s Note: This post is one of a series by Chris Stratton and Wen Lee, a husband-and-wife team living in the Los Angeles area who are turning their 1963 suburban…
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Billions Available from HUD for Climate Resilience
Billions of dollars in much-needed federal funding are finally being made available to nine states and five local communities. These dollars are to be used for activities and projects that…
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Saving Our Vanishing Wilderness
The Arctic National Wildlife Refuge (ANWR) covers more than 19 million acres in northeast Alaska. It’s about the size of North Carolina. A significant portion of the refuge -- 8…
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