Insulation in floor joists of an encapsulated crawlspace?
Hi! We’re currently in the planning/permitting phase of building an high performance home in the Southeast. We’ve employed a green building specialist to help model our house to find the proposed hers rating and put into effect all the awesome things we’ve been reading about on gba. But our contractor (general, traditional) is giving us some push back about one of his recommendations. The green building specialist recommended we put rock wool insulation in the floor joists above our encapsulated crawlspace based on his computer modeling of our home. Our contractor said that’s unheard of and with an encapsulated crawlspace we should use no insulation. We’re puzzled because wouldn’t we want to utilize the generally cooler temperature of the ground since we’re in the South? And not worry as much about having cold floors in the mild winter? HELP!
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