wall tiling

Old 12-19-13, 09:01 PM
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wall tiling

I'm doing a bathroom remodel and I want to tile the wall.The good news is that the wall is cement board however there is a 1/8 inch layer on top that seems like joint compound. I guess it was used to get a smoother surface for painting. My question is can I put tile on this or do I have to replace the wall. It is a half bath so it will not be exposed to alot of moisture like a shower would?
Old 12-20-13, 04:32 AM
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As long as it is not a wet area, you should be fine with a smooth surface for your tile. Don't know why someone would go to the trouble of skimming cement board, but you have what you have.
Old 12-20-13, 05:25 AM
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Sounds more like he has plaster walls instead of concrete with the 1/8" as the veneer layer. Plaster does have a tendency to delaminate if subjected to moisture or movement. However, unlikely to be an issue in a 1/2 bath.
Old 12-20-13, 05:57 AM
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Is this house about 50 years old?
Just a guess because about then they where doing away with lath and plaster and using what looks like tile board then a thin layer of plaster.
That stuff is hard as a rock unlike joint compound.
I'd at least clean it, scuff with 40 grit paper, wipe it down again to get the dust off to give the thin set something to grip.

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