Insulating unfinished basement

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Hm, I was surprised by the moisture barrier on the inside of the studs and insulation. If one does spray foam it would be on the concrete behind the studs.

What is better?
IMHO - Rockwool boards are a nice insulation system but in general rock wool is dusty. Fine for a non used space like an attic but you may regret not covering it in space that gets occasional use.