We bought 6 boxes of this from Lowes and plan to install in the master bath.
Nailed to the joists I have 3/4" OSB and I will install 1/2" hardybacker board. We also want to install Suntouch electric radiant heat mats.
My question is: what thinset should we use for the marble tile and still be able to install radiant heat? Lowes salesperson says we should use adhesive mastic -but then we could not install the radiant...
Any help would be much appreciated. Thanks.
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