OT - Insulating a quonset-hut style building - Page 2
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  1. #21
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    How thick is it and what did it cost?
    How flammable is that stuff- for 4th of july when all the fireworks land on the roof?

  2. #22
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    2 inches thick for 10,800. The full 2 inches haven't been sprayed yet. It will be topcoated with white elastomeric paint. MSDS shows flammability as a slight risk. It will burn if exposed to flame long enough, not any more flammable than asphalt shingles.

  3. #23
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    Looks almost like 2" of snow in summer!!!!

    Ken

  4. #24
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    yeah yellow snow

  5. #25
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    I wonder what the contractors profit level is on these foam jobs.

  6. #26
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    Default Profit Level?

    These foam guys really do work for their money. The guy that did my shop had serious equipment - 3" in one pass. Big truck, giant dual airless setup, giant compressor, all self contained for those no power at the site jobs. That's a lot of gear, plus 2 helpers.

    Also, while the MSDS looks pretty friendly on the cured foam, while its being sprayed its a serious health and explosion hazard (unless maybe the newer water based eliminates these risks?).

    So: Big truck, Big compressor, dual airless, 2 helpers, 55 gallon barrels of Part A and Part B.

    In some cases multiple coats, then mandatory to paint over, as UV deteriorates it from the outside.

    I had mine put on the inside - ~ 10 years on, no delam or 'foam snow'.

  7. #27
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    It's been 9 years how is the exterior insulation holding up?

  8. Likes JoeE. liked this post
  9. #28
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    I would install 2" blue foam panels inside. I have seen this done but never installed foam like that.
    Installers placed a 2" x 1/16" thick square metal plate with a 3" pin sticking out of the center. Panels are pushed onto the pins and another thin plate with a center hole is placed over the pin. This acts as a washer. Do not know what these pins are called and the dimensions I gave are from what I recall 20 + years ago.
    I recall that 2 installers insulated large areas with little or no problems.

    mike

  10. #29
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    I just had a new asphalt shingle roof put on my house in California. In Califorina the shingles must meet "cool Roof" specs. This means they have to reflect some heat so no black shingles allowed. Some are pretty black but they still reflect heat fairly well.
    Bil lD

  11. #30
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    A bit off topic but when did they stop tinting sidewalks with lamp black. In the 1950's sidewalks and driveways have a slight gray color. New concrete is just stark white and does not blend even after years of dirt. I suppose at the same time they stopped color coat stucco and switched to more expensive and much less durable paint instead.
    Bill D


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