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Wood or PVC baseboards w/ slab on grade foundation?

Emel | Posted in General Questions on

Is it best to use a PVC baseboard for slab on grade or wood? We have created our walls to have drying capability with rockwool, and intello vapor barrier and then drywall. Would putting a PVC trim board down, trap room much moisture? Or would leaving a 1/8″ gap underneath between it and the floor be enough to not cause issues? If I went the wood route, I was going to use a pre-primed 3 1/2″ pine board and I don’t know the breathability of their primer, so maybe this question is a non-issue either way as long as I have a small gap on the floor?

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Replies

  1. Expert Member
    MALCOLM TAYLOR | | #1

    Emel,

    Either are fine. Any moisture will be removed by diffusion through the drywall.

    I wouldn't leave a gap. It will just accumulate debris and pests.

  2. Expert Member
    Antonio Bettencourt | | #2

    Due to a host of environmental and health issues, I avoid PVC whenever I have an acceptable alternative.
    You don't need to worry about moisture for either PVC or other materials in this application.
    Personally I'd go with the pine.

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