Climate Zone 3A – faced vs unfaced insulation in walls and ceilings?
I know that this may be a basic question, and excuse me for that. I am building a new home in far northeast Texas, which I believe puts me in Climate Zone 3a W/H (warm/humid). Should I be using faced or unfaced batt insulation?
Everything I’ve been able to find seems to indicate unfaced insulation (in the walls, anyway – not sure about ceiling), yet all the big-box stores and lumber companies in my small town sell only faced fiberglass batts.
The house is well sealed on the outside. The exterior walls, from interior out, consist of 1/2″ OSB, 1″ polyiso rigid foam, Tyvek Drainwrap (tightly wrapped and taped around all corners, and Hardie board and batten siding. My crawl space is insulated and with vapor barrier under concrete floor – all A/C ductwork will run in this insulated crawl space with a single air duct to provide minimal air conditioning and moisture control in the crawl space (in conjunction with a dehumidifier).
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