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Why not what I have for insulation?

Discussion in 'Residential Fire Codes' started by Build it jill, Jun 14, 2019.

  1. Build it jill

    Build it jill Registered User

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    i have an abundance of 1” thick closed cell foam that I would like to use for roof insulation. Previously used in the shipping industry, it meets fire mandates of the airlines etc. . Can I insulate with anything as long as I can prove it has a high r rating and is treated for fire retarding?
     
  2. cda

    cda Sawhorse

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    Where do you want to put it??

    On the roof ?

    On the under side of the roof deck ?

    On the top of your ceiling in the attic?

    Do you know the R value??
     
  3. mark handler

    mark handler Sawhorse

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    If this is in CA, Must meet CA energy code Requirements, Not FAA requirements.
     
  4. ICE

    ICE Sawhorse

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    What is the R value?
     
  5. mark handler

    mark handler Sawhorse

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    Typically Closed Cell Spray Foam has an R-value of 6.0 - 6.5 per inch
    But the product Jill is speaking of could vary

    Problems do occur with spray foam including trapping moisture in the framing. This occurs when there is a moisture barrier placed on the outside and closed cell on the inside. trapping moisture in the wall.....
     

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