Foam vs Fiberglass in Coastal Area
Building soon in FL coastal environment. I’m getting conflicting opinions on whether to spend extra $$ for foam insulation or stay with traditional fiberglass. One school of thought is that foam fills voids so well that little or no moisture will enter. The other school contends that traditional fiberglass and wall construction will allow some air movement, and that if moisture gets into the walls it will eventually dry via minute air flow in the wall cavities, whereas it will NEVER dry with foam installed.
I’m also getting the same diverse opinions on using std drywall vs paperless drywall, with opponents of paperless saying the finish is rough AND if there’s a mold problem paperless will only hide the problem longer, ergo use std. drywall.
I need some help as these are irreversible yet critical decisions. Thanks in advance for your help and advice.