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Durable basement wall insulation techniques

Chad Johnson Published: March 25, 2019, 8:33 p.m.Last updated: April 27, 2019, 12:24 p.m.

I live in climate zone 5 in USA and plan to frame basement walls roughly 3” away from concrete and then place mineral wool between the studs.  I do not plan to apply any vapor barrier to the concrete or between the studs and drywall and the mineral wool has no vapor barrier.  Is this space between concrete and studwall a terribly idea if walls are already dry and mold free? the exterior of the basement walls has 2”  of foam on them so any warmer air from finished basement would permiate through mineral wool to the wall but air space would or should allow for dry out no?

Thoughts on that specific method?  Any research on it or seen it before fail or do fine?

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