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Radiant slab

Wild Rover
Wild Rover Member Posts: 41
in THE MAIN WALL
I am looking for some recommendations on a radiant job I have coming up. There is an exising concrete basement floor onto which PT lumber is being laid on the flat for subfloor and hardwood floor installation. I am looking for insulation recommendations to sit on the old slab( thickness???). Concrete will be poured over the tubing to the top of the PT lumber. Local supply house had some literature on a product called Insul-tarp. Any help would be appreciated.

Comments

  • Weezbo
    Weezbo Member Posts: 6,232
    PM has a cool article

    By John , it is an idea of some points of interest when installing radiant heating with less than top quality assistance placing cement. pay special heed to what he is saying...because it may apply to you ...

    when pouring up to a plate ,over something on the flat like OSB or ply wood,Gypcrete formulas have it definitely going on..cement is just about the worst thing to use unless its insulated reinforced and thick..if my electric camera was working i could get you some pictures of cement done in 2"thick X 16" wide by 24" long, stained,sealed, curbed, grooved...all kinds of acrylic all hand workmanship..that came out well.
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