Hello all-knowing folks, I've probably messed up a bit in a hurry. I've poured a slab for an "attefallare" (small house). .wrapped it with plastic and erected 2 interior walls..2*2 at the bottom on the outer edge sits on the plastic. .but for the wooden frames, I didn't have any plastic/sill underneath. Is it necessary if the slab is dry? When / how do you know the slab is sufficiently dry? About 1 year? Let a dehumidifier run for a while?
A bit annoying to demolish simple interior walls. ...
Grateful for answers
 
Why do you have plastic on an insulated concrete slab? Sill for walls is placed with sill paper underneath against the concrete.
 
I meant that I have covered the outer wall with plastic and framed it with horizontal 45s, and the one at the bottom against the slab has plastic under it... however, I haven't used plastic/sealant under the interior walls that I have now simplified.
 
There should be syllpapp under all studs, not plastic. You can get a water leak and then the concrete will absorb the moisture like a sponge.
 
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