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Last word on vapor barrier in midwest?
I wish I could understand this issue enough to feel confident:
I live in Kansas City, Missouri. We have freezing cold, dry winters with the humidifier blasting away. Then we have suffocatingly wet hot summers with the AC working away to cut the humidity.
I've got an exterior wall on my uninsulated house house opened up on the interior side and I'm going to install some fiberglass batt insulation. I also have the siding torn off to reside, so I'm going to install 15# asphalt paper under the siding.
Which side of the wall do I install the paper side of the fiberglass batt?