WARNING: This article contains graphic and disturbing images of a duct system that may upset anyone sensitive to low-quality air distribution. If you've ever experienced nausea, fainting spells, or outbursts of anger upon being exposed to such stimuli, I urge you to take this in small doses...or not at all.Read More
Energy Vanguard Blog
If you've ever wanted to learn how to cook with the sun, the 2015 Solar Cooking Festival in Sacramento was the place to be. This is the second year of the event, hosted by Solar Cookers International. They had quite a variety of solar cookers on display, from simple, two-panel low-temperature solar cookers to large, high-temperature cookers with concrete bases. There was also a cook-off and lots of advice for those who want to learn more.Read More
As long as we're exploring the wonderful world of water, we ought to show some of the cool stuff it does. In my article Introduction to the Physics of Water in Porous Materials, I described hydrophilic, hydrophobic, and hygroscopic materials. Turns out they're pretty important to building science. Yesterday I saw a video of hydrophobic sand and that got me looking on Youtube for other good videos of this sort.Read More
Yesterday I had lunch with Robert Bean and Eric Griffin at the ASHRAE conference here in Atlanta. As we talked about how we got into the field of building science, I began thinking of the reasons I love doing what I do. My background is physics, and I really enjoyed teaching it when I was in academia, but I didn't really fit in there. When I discovered building science (and later blogging), I finally found my niche. Here's why:Read More
Have you seen ghosts? Ever been in a haunted house? Do some homes just give you the paranormal heebie jeebies? The building science ghostbusters are hot on the trail, so you may be able to set your mind at ease.
The ACI National Home Performance Conference is only a month away. Even more important, the deadline to get the Early Bird rate on the registration fee is Monday, 6 April. If you work on homes, this conference is for you. Here are 7 reasons why.
Move over powered attic ventilator. There's a new boss in town. For decades, concerned homeowners have looked for ways to keep their attics cool: gable vents, ridge vents, turtlebacks and whirlybirds. Then they moved from passive to active and latched onto the powered attic ventilator. Now we don't have to settle for a technology that pulls conditioned air up from the house.
On Saturday, the Energy Vanguard Blog turned 5 years old. It's been an interesting and rewarding journey, and I'm really glad I sat down and started doing it in early March 2010.
Someone got creative with their attic insulation!
I've been writing some articles on ventilation for the Journal of Light Construction lately and have come across some great material. The first quote here makes the point about indoor air quality with a graphic underwear metaphor. It's from an 1893 book whose author was a medical doctor interested in ventilation to prevent diseases like phthisis (what we now call tuberculosis).