Q&A: A Forum for Green Building Experts and Beginners
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Are wood headers insulated with rigid XPS as the filler as structurally sound as those padded out with OSB or plywood?
Closed-cell foam in stud cavities and Tuff-R on sheathing. This going to be a vapor barrier problem.
Does anyone have an appreciable history with installation of horizontal vinyl siding over furring strips, attached through several inches of rigid foam to studs?