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radiant over existing slab insulation ?

Craig Bergman
Craig Bergman Member Posts: 84
in THE MAIN WALL
for insulation on top of the existing slab when using
products like Wirsbo Quick Track or Rehau Raupanel?
I assume that a vapor barrier is required on top of the slab also.
Thanks;
Bergy

Comments

  • Al Letellier_2
    Al Letellier_2 Member Posts: 15
    slab radiant

    It depends on how much room you have to raise the floor. Obviously you can put down blueboard and a new subfloor or lightweight pour if you have the room. If not, we've used 1" marine plywood glued and power nailed to the slab, with QuikTrac directly on top of it. There should be a vapor barrier below the slab, so a second one shouldn't be needed.
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