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Old 06-19-2010, 12:50 PM   #1
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subfloor for radiant heat with tile


Hello, We are down to the subfloor which is 1/2 thick plywood. The radiant heat we are using is hydro and the tubing will be placed into pre channeled plywood that is 1/2 thick. Can we place 1/4 fiber rock + the barrier paper on top of that and then tile? OR do we need to add to the sub-floor for tile support? Thanks

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Old 06-22-2010, 03:44 PM   #2
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subfloor for radiant heat with tile


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Originally Posted by Jan54 View Post
Hello, We are down to the subfloor which is 1/2 thick plywood. The radiant heat we are using is hydro and the tubing will be placed into pre channeled plywood that is 1/2 thick. Can we place 1/4 fiber rock + the barrier paper on top of that and then tile? OR do we need to add to the sub-floor for tile support? Thanks
Hello,

we are doing the hydronic radiant heat too and we put Cement backerboard (Durock brand, 1/2") underneath the tile. No Barrier paper. So far we have only put tile in our bathroom and part of the hallway and no problems so far.

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