The Latest from the Energy Vanguard Blog

Melted snow on the roof due to a small hole in the spray foam insulation and a compromised building envelope
Posted by Allison Bailes on January 17, 2011
Snow on the Roof is the poor man's infrared camera. During the snow days we just had in Atlanta, Jeffrey Sauls, EVER rater and owner of D2D Sustainability, sent me the photo below.
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building science zen and motorcycle maintenance
Posted by Allison Bailes on January 14, 2011
One of my all time favorite books is Zen and the Art of Motorcycle Maintenance by Robert Pirsig. It’s really good on a lot of levels, but one thing that really stuck with me was the author’s discussion of how some people will tolerate things like a dripping faucet because of their fear of learning...
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energy improvement mortgage old furnace hers rater
Posted by Allison Bailes on January 12, 2011
About a year ago, I had lunch with someone who was in the process of refinancing his 50 year old home. He was doing the refi merely to lower his interest rate and monthly payments, but he missed out on a huge opportunity.
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penetrations-like-needle-through-balloon-building-envelope
Posted by EV Staff on January 10, 2011
Building Envelope as a Balloon
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Attic pull-down stairs are a big hole in your building envelope.
Posted by Allison Bailes on January 7, 2011
Green Building Advisor, one of my favorite sources of good info on building science and green building, ran my Flat or Lumpy article as a guest blog yesterday. (They also gave the Energy Vanguard blog a nice review!)
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roof snow melt attic heat loss insulation air barrier
Posted by Allison Bailes on January 5, 2011
We got a couple inches of snow here in Atlanta over the holidays, and I love to get outside and take pictures after the snow has been on the rooftops for a day or so. In the photo below, you can see what happened after that snow had been on the roof for only 12 hours.
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The obituary of Allison A. Bailes III, PhD, written prehumously
Posted by Allison Bailes on January 4, 2011
Allison Arthur Bailes III, PhD, died on the morning of 4 January 2011. His wife found him slumped over the keyboard of his computer, where he collapsed after working on yet another blog article. Apparently the pressure to write, which he had just described in a post the day before, overwhelmed him...
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using-hvac-closet-door-as-filter-high-rise-condo
Posted by EV Staff on January 4, 2011
I live in a high-rise condominium in Midtown Atlanta. In an earlier post about this energy hog of a building, I focused on the huge heat loss conditions that exist, the missed opportunities to prevent these conditions through energy efficient design, and the high energy bills that we pay as a...
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Possum Drop, and the combustion of the sacrificial possum
Posted by Allison Bailes on January 3, 2011
As it turns out, I did not make it to the annual Possum Drop to ring in the new year. The photo below is one I took last year. I also did not publish any blog articles last week, the first time that's happened since I started this blog on 7 March 2010.
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HERS rater training Blower Door, duct leakage, and diagnostic testing
Posted by Allison Bailes on December 23, 2010
Martin Holladay, the famousEnergy Nerd from Green Building Advisor and one of my favorite building science geeks, outdid himself this year with his building science variations of famous Christmas carols. Our friends at Energy Circle, who are much more musically talented than I, accepted the...
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