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How much edge insulation is enough?

hot_rod Member Posts: 22,387
With snow on the ground today I thought I would take a look at my radiant with the IR camera. My office wall is ICF 2' deep up 4 feet. The block is an honest 2 & 2-1/2" of foam, 6" concrete. Supplying about 100°F to the slab.
Bob "hot rod" Rohr
trainer for Caleffi NA
Living the hydronic dream


  • TAG
    TAG Member Posts: 755
    That's very interesting ... I should get a simple IR device.

    Have had properties shot -- My guess is the big delta is the reason. Do you know the R of that foam?

    Have used closed cell on my projects for years and 2.5" at normal temps (70) is amazing when I have had audits done.

  • Jamie Hall
    Jamie Hall Member Posts: 23,559
    Neat! Thanks, @hot_rod !
    Br. Jamie, osb
    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England