What do you get when you cross a deep energy retrofit with an 1880s Victorian-style home?
No, they're not living in haylofts. The horses don't knock the houses down for bedding. And the big bad wolf doesn't chase the residents off in search of bricks and mortar. [continue reading]
Most newer manufactured homes in the Pacific Northwest, as well as many older mobile homes, have a vapor retarder on the inside of the wall cavity--typically right behind the gypsum board. However, many older mobile homes, especially those built before the 1980s, were manufactured with a vapor retarder on the outside of the wall cavity--generally right behind the metal (or sometimes wood) siding. [continue reading]
Just because a wall has R-19 insulation in it does not mean it's an R-19 wall. Using the R-value of the insulation between the studs (the "cavity R-value") as an overall wall R-value is similar to using the center-of-glass value for a window--it ignores the effect of framing. [continue reading]
Rising lumber prices and an erratic market have driven some homebuilders to look for alternatives to wood framing, and steel framing is one option that is grabbing their attention. [continue reading]
Masonry, or concrete block, housing construction is common throughout the southern United States, where cooling demands are significant. [continue reading]
HPC develops new approaches to federal, state and local policies that promote growth in the residential energy efficiency sector through ...
Net-zero energy homes seem to be growing their way out of a purely niche market. The number of zero energy ...