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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

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Replies

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

    Rob,

    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

    Rob,
    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.

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