GBA Logo horizontal- Facebook- LinkedIn- Email- Pinterest- Twitter- Instagram- YouTube Icon- Navigation Search Icon- Main Search Icon- Video Play Icon- Audio Play Icon- Headphones Icon- Plus Icon- Minus Icon- Check Icon- Print Icon- Picture icon- Single Arrow Icon- Double Arrow Icon- Hamburger Icon- TV Icon- Close Icon- Sorted- Hamburger/Search Icon-

Community and Q&A

What radiant heat system would work best on concrete floor with tile?

nuclear free | Posted in Energy Efficiency and Durability on

I’m thinking something that would create a thermal break between concrete and tile floor. Anyone with ideas about what to use would be appreciated.. Thanks Rob

GBA Prime

Join the leading community of building science experts

Become a GBA Prime member and get instant access to the latest developments in green building, research, and reports from the field.


  1. Steve Knapp CZ 3A Georgia | | #1


    Where are you located? Is this new construction, and is the radiant going everywhere or only in an isolated area?

  2. User avatar
    Dana Dorsett | | #2

    Is there going to be insulation under the slab, or is this a retrofit over a existing uninsulated slab?

  3. User avatar GBA Editor
    Martin Holladay | | #3

    The usual method would be to install a generous layer of continuous horizontal rigid foam under the slab, followed by polyethylene and a concrete slab with embedded PEX tubing. The tile is installed as usual. There is no need for a "thermal break" between the tile flooring and the concrete slab.

Log in or create an account to post an answer.


Recent Questions and Replies

  • |
  • |
  • |
  • |