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OE Challenge Home Case Study, Weiss Building & Development, LLC., Custom Home, Downer Grove, IL

Case-study of a DOE Challenge Home in Downers Grove IL that scored HERS 35 without PV. This 3,600 ft2 custom home has advanced framed walls with R-23 dense-packed fiberglass plus R-13 rigid polyiso, a sealed attic with open-cell spray foam, a pier foundation, and 95% efficient gas furnace.