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Is a Capillary break between footing & stem necessary with a slab on grade?

Emel | Posted in General Questions on

I read in this article that it is advised to use a capillary break between footings and stem wall especially when you have a finished basement.,barrier%20provides%20a%20capillary%20break.

My question is, what if you have a slab on grade and the concrete is your finished floor? Is a capillary break between the footing and stem wall necessary at that point? Would an exterior water proofing membrane over both be enough? 

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  1. walta100 | | #1

    The word necessary in your question is problematic.

    The capillary break is not a code requirement by that definition it is not necessary.

    The vast majority of homes seem to do quite well without a capillary break by that definition it is not necessary.

    Is a capillary break useful, cost effective or worth fighting my contractor for, could be interesting questions with different answers depending on the cost and climate.


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