The Latest from the Energy Vanguard Blog

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Posted by Allison Bailes on August 5, 2016
I've seen some crazy things done to homes. It's usually someone's attempt to make things better. Sometimes that someone is a homeowner or other occupant. Sometimes it's a contractor. But it always seems to be a solution to a problem that creates other problems. It's just like they say: Our biggest...
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Posted by Allison Bailes on July 22, 2016
Last month I attended the conference of the North American Passive House Network in New York City. They had a really nice trade show, and I got to spend some time talking to the vendors. It's always nice to see what's going at these events because I'm starting to come around to Joe Lstiburek's way...
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ventilation energy enthalpy recovery ventilator erv humidity
Posted by Allison Bailes on July 21, 2016
Ah, ventilation. One of the easier topics in building science. Everyone agrees: We need airtight houses. Airtight houses need mechanical ventilation. Build tight. Ventilate right. No problem! We're all on board. There's nothing to disagree about. Right?
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ventilation ashrae 62.2 2010 low rise residential standard
Posted by Allison Bailes on July 5, 2016
Just because I haven't written about the jockeying over ventilation rates and strategies with the ASHRAE 62.2 committee doesn't mean nothing's going on. If you've been following the battle over this issue, you know that Joe Lstiburek, PhD, PE, got fed up with ASHRAE and introduced his own...
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Posted by Allison Bailes on June 21, 2016
Condominiums and apartments present some serious challenges when it comes to providing ventilation for good indoor air quality. (I live in a condo that was built in 1970 with no whole-house mechanical ventilation, but that's another story.) In high-rise buildings, wind and stack effect often render...
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Posted by Allison Bailes on May 17, 2016
If your home is old enough for a bathroom renovation, you may want to go ahead and completely gut it. I started my bathroom remodel last month with a complete demolition. If I hadn't, a number of problems would have been unavailable for repair...or even undiscovered. Here's what I found when I...
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Posted by Allison Bailes on April 18, 2016
I always look at the bathroom ventilation when I'm staying in hotels. Last month I was at the Air Barrier Association conference in Baltimore and took the photo below. Can you tell anything about what might be happening by looking at it? I didn't do a thorough investigation, but here's what I see.
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Posted by Allison Bailes on February 1, 2016
I know it's not air conditioning season, but this story is too good to wait until summer rolls around. My friends at E3 Innovate in Nashville — you may remember them for finding the home ventilated with dead possum odors — have done it again. This time they've discovered a crawl space with an...
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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 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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