Finishing flooring on cement slab
I have used plastic to test the unfinished slab in my basement. It comes up dry. So the advice is to treat the slab with sealant and then put a vapor barrier, and then apply any insulation and flooring strates. But I am concerned about creating a greenhouse for vapor under a plastic vapor barrier. Yes, the sealant should prevent moisture from coming up. In fact, I even have a partial but broken vapor barrier (plastic sheath) under the cement slab. But sealants break down over time. And my vapor barrier is not without imperfections.
So 1- isnt it unhealthy to have a vapor impermeable sheet above a dusty concrete floor, which might trap vapor over long time periods?
1a) if this is true, then what is a good permeable floor system that would allow any moisture vapor that does get in to pass through it?
2- Many moisture mitigation systems claim to be green, but how much should I worry about outgassing? Is there one system that you recommend most?
Posted Wed, 02/12/2014 - 16:58
Edited Wed, 02/12/2014 - 17:19
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