Ten years ago, I was at the front end of building a green, high performance home. (That's me on the ladder connecting the two LVL ridge beams that support the structural insulated panel roof.) It was going to take only…
Radiant barriers are cool! Well, actually they get quite warm, but they help the space below them stay cooler when used on a roof assembly above an unconditioned attic. They can drop the temperature of an attic about 20° F.…
Oh, man, how can I say there's a single book that I'd call "the best book I've ever read"? That's just not possible. But it's the topic of today's Let's Blogoff, so, as usual, I'll answer the question the way…
Did the grass outside have dew on it this morning where you live? It did here. (That photo above is the actual dew on the actual grass on this actual morning just outside my actual house!) The appearance of liquid…
Yesterday we took our HERS rater class out into the field to get experience with the pressure testing equipment and data collection procedures. As a bonus, the house we visited presented us with an interesting mystery. Here are the symptoms…
I'm teaching a HERS rater class this week, and on Monday we went out to look at a couple of houses and do a Blower Door test. The second house we visited was under construction, and the builder had used…
I spent this week at the 15th Annual Westford Symposium on Building Science (aka Building Science Summer Camp). Great event. Great people. Lots of learning and thinking and networking. I spent this week at the 15th Annual Westford Symposium on…
In the guest post I wrote for Bob Borson in his blog Life of an Architect, I gave an overview of the types of attic insulation. I didn't discuss radiant barriers in the article, but it's a hot topic, so…
Some people, even in modern times, have believed the Earth is flat. Others believe that drilling a hole in their head will make them eternally happy. Some people, even in modern times, have believed the Earth is flat. Others believe…
Yesterday, I wrote about the refrigeration cycle for beginners. (Another good article that covers basics of the refrigeration cycle as well as answers to some commonly asked questions is Martin Holladay's Air Conditioner Basics.) Today we go a little deeper.…