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Unread 05-28-2008, 06:37 PM   #5
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Join Date: Feb 2008
Posts: 325
And why pray tell is that?
We're not talking about a floor here.
I'd be happy to see two layers of ply alone with tile right on it for a counter top.
Adding cbu with redgard or plywood with ditra are both options for the guy who's concerned about water damage.
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