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  1. #1
    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
    I would guess like .1 or .2 or next to nothing,

  3. #3
    Join Date
    Jun 2000
    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

  5. #5
    Join Date
    Apr 2001
    Camel City, NC
    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
    So ther than being a good wind block, they are worthless for insulating,

  7. #7
    Join Date
    May 2000
    Colorado flatland native

    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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