Tiling basement shower floor


Old 12-26-03, 10:42 AM
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Tiling basement shower floor

I have never tiled right over concrete before so I have a few questions:

I have a shower drain already roughed into the basement slab. I am fortunate that the floor naturally slopes toward that drain in 3 directions. However, I will need to build up the floor by about 1/8" to 1/4" in that 4th direction plus fill in a very slight depression.

Can I use something like thinset or some other floor leveler to prep this floor for tile? Should I treat the existing concrete slab with some type of binding agent?

Thanks for any advise you can provide.
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Old 12-27-03, 09:26 AM
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You can build that little bit up with thin-set, how old is the slab? If it's pretty new still, I'd recommend using an anti-fracture membrane under the tile.
Old 12-28-03, 06:03 PM
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also one(membrane) that is waterproofing and listed as a shower pan liner! should meet the standard ANSI 118.10
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