Thermal break strips?
Rather than add a layer of foam to the outside of a house or build a double stud wall, can I staple strips of fan-fold XPS (3/8 in.) to the inside and/or outside of studs to break the thermal bridge?
I understand that it’s not as good as sheets of 1 in. board, but it’s a lot cheaper than wrapping the outside with foam or buying twice as many studs.
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