Attic spray foam for 18-year old home in Texas
I’m purchasing a 3500 sq ft home in hot and humid east Texas. HVAC (two units), two hot water heaters (electric) and a propane line are in the attic space. Would closed cell foam on the underside of the roof decking + sealing the current ventilation pathways significantly reduce my utility costs. This is a rural property and my utility providers choices are limited and my Kw/hr costs are high. I’d also have to extend the bathroom vents through the roof since they now vent into the attic.
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