Why does insulation have to contact six sides?
On the internet I’ve read about 15 years worth of claims that insulation must contact all six sides for it to be effective, but haven’t seen an explanation why. Yes, I’ve read many times that a building’s insulation and air barrier must completely surround the conditioned space and be in contact with each other, but can’t find the science behind it explained. I would sure appreciate a scientific explanation from anybody. Thanks very sincerely.
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