This New House-Exterior Rigid Foam?

Wednesday, 01 September 2010 16:12

Claire Remsberg, an architect in the Rocky Mountain region, is working on a house where the main goals are to limit thermal bridgingthrough the 2x6 wood frame and to beef up wall R-values. Plans call for vertical wood siding over a layer of rigid foam insulation.

If that sounds more or less straightforward, the details are not. The contractor has limited experience working with rigid exterior insulation, Remsberg writes, and has concerns that installing siding directly over the foam may not be a great idea.

Remsberg has explored a number of wall assemblies but admits that "nothing is looking quite right yet." Her request for ideas on how to detail the wall is the subject of this week's Q&A spotlight.

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