FINDING the FLAWS in SUPERINSULATION Figure 1. A chaseway for furnace and water-heater flues. The fiberglass batt used to block opening is streaked with dirt from leaking air. Figure 2. The top of a partition viewed from the attic of a split-level house. Note that there’s no blocking atop the wall-a problem in every split-level in the study. The thermal bugs in these 144 superinsulated houses were much the same as in any housing stock. So what have we learned? In 1980, 144 low-energy houses were built in Minnesota as part of a demonstration project called the Energy Efficient Housing Design (EEHD) program. Twenty-three builders participated in the program, and built from two to twelve houses each. The
Finding the Flaws in Superinsulation
The thermal bugs in these 144 superinsulated houses were much the same as in any housing stock. So what have we learned?
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