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re: Can I pour my concrete patio floor directly over dirt?

Posted on 7/6/20 at 10:49 pm to
Posted by The Nino
Member since Jan 2010
21528 posts
Posted on 7/6/20 at 10:49 pm to
quote:

I would put some visqueen under it just in case you ever decide to enclose it.
Out of curiosity, what would the visqueen accomplish In this situation?
Posted by Lou the Jew from LSU
Member since Oct 2006
4738 posts
Posted on 7/7/20 at 12:16 am to
Vapor barrier and it helps transfer any weight over a larger area lowering lb/sq in.
I would advise using a WOVEN weed barrier cloth instead of visqueen. Usually available from a nursery or garden center. It’s what is used under roadways.
Also reinforcement wire or light rebar to spread weight and avoid cracks.
Posted by 4WHLN
Drinking at the Cottage Inn
Member since Mar 2013
7583 posts
Posted on 7/7/20 at 7:29 am to
quote:

Out of curiosity, what would the visqueen accomplish In this situation?

Helps keep moisture from coming up through the slab from underneath.
Posted by Hank R Hill
Arlen,TX
Member since Jan 2017
470 posts
Posted on 7/7/20 at 8:36 pm to
It keeps ground moisture from coming up into the concrete. Also If there is too much moisture in the concrete flooring glues will not adhere properly. Same reason you put it under your house slab.
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