Thread: concrete slab
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Posted to alt.home.repair
dkarnes
 
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Default concrete slab
wrote:
pouring a slab foundation on top of existing 4 inch concrete patio.
code calls for 2 inches of sand on top of 10 mil visqueen.what do you
guys think? should i just roughen it up and pour on top? Visqueen is
there as a vapor barrier.

is this for a patio or are you building a room addition. if it is a room
addition you better check with your building regs. i did that, i had
footers under the existing slab. i will bet if it is just 4 inches you
do not have footers.
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