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Old 10-28-14, 12:17 PM   #6
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Originally Posted by pinballlooking View Post
Our weather is milder you donít see metal buildings insulated with spray foam around here. They are now insulating with the foil bubbles.
Most pole barns/metal buildings are not really "weather tight". They are primarily to keep things dry. Foil bubble insulation would be terribly inadequate if you were building a building that you wanted to heat/cool in SC !!

The OPs 40x60 building (2400 sq ft) could probably be heated and cooled by a 3 ton mini-split heat pump with 3 - 4 air handlers. By "traditional" standards that would be undersized, but with sufficient wall and ceiling insulation and decent windows and doors, I think it would work.
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