Is insulated vinyl siding worth the cost and is it effective? I am on the coast of Maryland.
Vinyl siding is inherently ventilated typically so it seems that any insulating value would be washed out. If that weren’t an issue, isn’t the relatively thin insulation enough to cause vapor drive issues in the winter? Minimum exterior foam thickness for my climate is 1″ but 1.5″ would be safer. We usually opt for 2″.
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