50mm of rigid urethane foam pluse 200 mm of concrete?

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  • elhigh
    Lv 7
    8 months ago

     ...equals a total of 250mm, about 10 inches.

    Did you have a question?

  • 8 months ago

    concrete has almost zero insulation value. the insulation value of the foam can be looked up online

  • 8 months ago

    this is not a question

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