Flooring Tile - Tarpaper maisture barier for counter and floor?

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tessera
05-27-03, 08:50 AM
How important is it to use a moisture barrier between the 3/4" ply and the hardibacker?? This is for both a kitchen floor and countertop.

If needed what choices do I have (tarpaper, visquene, etc)?
Thanks,
Frank

floorman
05-27-03, 05:09 PM
who said you needed a moisture barrier?Unless this floor is going to be submerged then you do'nt need one
ee3
05-27-03, 08:10 PM
not only dont need ,dont want in that application.

tessera
05-28-03, 07:54 AM
I was told by an installer!
It seemed to make sense for moisture that may seep thru (on a countertop for instance.

WHY DON'T I want it here?
Frank
ee3
05-29-03, 02:17 PM
Tar paper is not recomended between the layer's it would break the bond of the thin set. If you want a moisture barrier or water proofing membrane use a ANSI 118.10 membrane such as NOBLESEAL TS, 9235,RED GUARD,ECT,ECT.All of these would be installed over the cement board directly below the tile bonding agent.(thin set)
floorman
05-29-03, 07:57 PM
well for one after you nail the bejeesus out of it it will so many holes in it that you just wasted all that money for nothing,if you want to waterproof you need to put that on top and then the tile,for that application you could use blue 92 or the red guard as previously suggested,but for that it's overkill do it if you want but not needed :cool:
tessera
05-30-03, 08:39 AM
Thanks for the explanations!
Looks like I don't need the moisture barrier - won't be putting one in.
Frank