The Latest from the Energy Vanguard Blog

Posted by Allison Bailes on January 29, 2016
Revolving doors have been around for a century and a half. You see them at the bottom of tall buildings, which tells you something right there. They weren't invented merely to function as a way to enter and exit these buildings. There's a building science reason behind their invention. In fact, the...
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Posted by Allison Bailes on January 27, 2016
It was the best of times, it was the worst of times, it was the season of cold, it was the season of heat, it was the ignorance of what was right in front of us, it was the opening of our eyes, we had warmth in our homes, we had warmth in our attics — in short, the period was so like the present...
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Posted by Allison Bailes on January 25, 2016
Unvented combustion appliances were added to the scope of ASHRAE's residential ventilation and IAQ standard (Std. 62.2) recently. The committee has begun their deliberations on the issue, and at ASHRAE's winter meeting in Orlando this month, the unvented gas appliance industry folks attempted a...
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Posted by Allison Bailes on January 22, 2016
This will be a quick article. I just want to show you four images to make a point about heat loss at windows. (I say "at" windows because we all know that windows themselves allow more heat through than the surrounding walls. Here in Atlanta, for example, builders have to insulate walls to R-13 but...
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Posted by Allison Bailes on January 20, 2016
It's been a little crackly around here lately. We're having a cold spell in Atlanta, with high temperatures right around the freezing point. As a result, the indoor relative humidity has dropped and we're getting some static electricity. Even better, what I call the Southern Lights are visible at...
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Posted by Allison Bailes on January 18, 2016
I love the ACI National Home Performance Conference and Trade Show. It's one of my favorite events of the year. From the first time I attended in 2005, I knew this conference was special. It's a great place to learn what your peers are doing in other parts of the country. It's a great place to meet...
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Posted by Allison Bailes on January 15, 2016
If you have an attached garage where you live, the odds are high that your indoor air quality is worse than a home without an attached garage. Just take a look at the photo below to see some of the sources of pollutants that can get into your home's air. How many do you see?
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Posted by Allison Bailes on January 13, 2016
Everyone loves skylights. Right? They bring so much light into a room they can turn a Seattle kitchen into a bright and sunny Florida room. Especially this time of year (in the Northern Hemisphere), having that extra light brighten even the darkest days of winter. But skylights have a dark side,...
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Posted by Allison Bailes on January 11, 2016
Niels Bohr, a Danish physicist, said "Prediction is very difficult, especially if it's about the future." Bohr was a pretty smart guy, having been one of the folks who got the whole quantum physics thing going a century ago, and I'm not inclined to disagree with him on this matter.
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Posted by Allison Bailes on December 31, 2015
In 2005, I was deep in the throes of my peak oil obsession. I went to a couple of conferences that fall and at the big one in Denver, I met a guy who gave me a little glimpse into the future. I can't recall his name, but I think maybe he worked for the National Renewable Energy Lab (NREL). He told...
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