Sunnyvale Marine Climate Deep Retrofit

Abstract

The work presented in this report does not represent performance of any product relative to regulated minimum efficiency requirements. The laboratory and/or field sites used for this work are not certified rating test facilities. The conditions and methods under which products were characterized for this work differ from standard rating conditions, as described. Because the methods and conditions differ, the reported results are not comparable to rated product performance and should only be used to estimate performance under the measured conditions. v Contents List of Figures .

Residential Building Envelope Energy Retrofit Methods, Simulation Tools, and Example Projects: A Review of the Literature

“…The retrofit design was intended to meet an airtightness standard equal to or better than 0.6 ACH50 and reduced the annual energy use to 120 kWh/m 2 /yr. The 1658 ft 2 Sunnyvale residential building is another example of the Passive House approach and the Building America program [68], where the BEopt model showed that the deep energy retrofit led to energy saving of 40% [68].…”

“…Annual consumption reduced to less than 120 kWh/m 2 /yr Sunnyvale residential building [68] R-13 dense-pack cellulose in the wall cavity, R-12 exterior foam, R-24 polyiso foam in the cavity, spray foam on rim joist and girders, R-12 on slabs, R-38 polyiso over the roof deck, and triple-pane glazing system.…”