In addition to 2" of EPS do I need a poly in a radiant floor heating system

  • Hello and welcome to DIY. Can you explain a bit more of what you are doing? Where is the EPS? Wall? Floor/inside/outside? How are you building up the framing and flooring? Also, please take the tour
    – P2000
    Apr 29, 2021 at 14:24
  • On my shop I put the plastic down then the foam and lines and poured over that remember that if you are adding reenforcement metal it can not be used as a grounding method if you have a eps or vapor barrier under the slab. I left a strip along the out side edge +20’ of rebar and the inspector was ok with that for a ufer grounding electrode.
    – Ed Beal
    Apr 29, 2021 at 22:56


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