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ICF forms (Rastra blocks) & slab edge insulation

DJFiler
DJFiler Member Posts: 1
how suitable are Rastra Insulated concrete forms for slab edge insulation in a radiant floor job-  if the radiant slab is poured right up against the Rastra blocks without an additional thermal break, how serious is the slab edge heat loss into the Rastra blocks?   

Comments

  • Mark Eatherton
    Mark Eatherton Member Posts: 5,853
    You'll be fine...

    Rastra block has decent R value. Most slabs get NO thermal break, and they work fine, although not the most efficient use of energy tho...



    ME
    It's not so much a case of "You got what you paid for", as it is a matter of "You DIDN'T get what you DIDN'T pay for, and you're NOT going to get what you thought you were in the way of comfort". Borrowed from Heatboy.
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