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  1. #1
    Join Date
    Aug 2004
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    Does anyone know what the R-value of some of the more common masonary blocks such as brick, cobblestone, cement block, etc. would be?

  2. #2
    Join Date
    Oct 2005
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    I would guess like .1 or .2 or next to nothing,

  3. #3
    Join Date
    Jun 2000
    Location
    WYO
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    I have some figures out of Modern Refrigeration and air Conditioning.
    A 4" concrete block is R 1.11
    8" thick plain brick w/ 1/2" wallboard -R 3.51.
    Brick venner is .39.
    A 4" concrete floor is 1.54
    never say never

  4. #4
    Join Date
    Oct 2001
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  5. #5
    Join Date
    Apr 2001
    Location
    Camel City, NC
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    6,233
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    Common brick is .20(r) per inch. Face brick is .11 (r) per inch. Density (lb. per cu.ft.)Common 120. Face 130.
    Be safe not fast. body parts don't grow back

  6. #6
    Join Date
    Oct 2005
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    So ther than being a good wind block, they are worthless for insulating,

  7. #7
    Join Date
    May 2000
    Location
    Colorado flatland native
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    Concrete is the same right?

    It takes 12' of concrete to have the same r-value as 1" of wood. Basically none. Brick and stone is a great heat absorber [ever walk by a brick wall in the sun when it's cold out? bricks are warm] not insulator.
    My doctor gave me six months to live, but when I couldn't pay the bill he gave me six months more.
    Walter Matthau

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