Managing Moisture at Interior Wall Sill Plates
I am renovating a slab-on-grade home that was built in the 1970’s and we have a problem with moisture accumulating at sill plates of interior walls.
There have been multiple flooring types used over the decades and most recently was a tongue and groove wood floor floating on a ~3mm thin padding which was on top of a impermeable plastic sheet. The plastic was taped at the seams creating a totally impermeable barrier between the slab and the floor except at the walls. (~30% of the floor was tile that has been floated over)
We would like to go back to wood floors but I (the homeowner) don’t want to find an alternative to allow the slab to breathe and the moisture to dissipate. I have been given the options to “glue the wood down” after sealing the concrete or going to a tile that looks like wood.
What other options do we have?
Will sealing and gluing the floor (except under the sill plates) still allow moisture to accumulate at the sill plates in an unusual amount?
Any insight would be greatly appreciated.
The home is being renovated because of mold and piss poor construction techniques used in a “facelift” that was done 5 years ago. The home has been totally gutted, all sheathing replaced with zip, and closed cell spray foam going into the attic (conditioned attic) and in the 2×4 walls for improved performance.
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