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DOE Zero Energy Ready Home Case Study: Weiss Building & Development LLC., Custom Home, Downers Grove, IL

Case study of a DOE Zero Energy Ready Home in Downers Grove, IL, that scored HERS 35 without PV. This 3,600-square-foot 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.