What standard home building practice guarantees large heating
and cooling losses?
A) Locating heating units in basements
B) Using fiberglass insulation
C) Installing duct work in attics and crawl spaces
D) Installing double paned windows
Scroll down for the answer...
Hiding duct work in attics and crawlspaces is a sure way to
lose air. Scientists at the Department of Energy labs have shown that 40 percent of
heated or cooled air supply is lost through duct leaks in unconditioned spaces.
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