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R-value

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Jason_13
Jason_13 Member Posts: 305
in THE MAIN WALL
R value

Doing a heat loss. What would the R-value of a wall 2 ft thick stone, he called it iron stone. Thanks

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  • nicholas bonham-carter
    nicholas bonham-carter Member Posts: 8,578
    Stone R-value

    It must be close to poured concrete in the SlantFin app-that is what I used for my cemetery Chapel heat loss.--NBC
  • Rich_49
    Rich_49 Member Posts: 2,785
    Stone

    has a low R value . Natural stone products such as Granite and lime or sand stone have the following R values .   Granite has an R value of point 05 per inch and sand/lime stone have R of point 08 per inch making your wall if any of these materials 1.2 overall R and 1.92 .  Is the wall you ask about natural material or something else .

    remember that the more dense the material the lower the R value will be , concrete at 60 pounds per foot will have an R of point 52 per inch and the same concrete at 150 pounds per foot will have an R value of point 07 per inch , that is a huge difference .
    You didn't get what you didn't pay for and it will never be what you thought it would .
    Langans Plumbing & Heating LLC
    732-751-1560
    Serving most of New Jersey, Eastern Pa .
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