cement sub floor

Old 04-05-08, 09:56 AM
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cement sub floor

I'm helping a friend demo her lavat and found that the tile floor is placed on a cement sub floor. It appears to be about 2" thick. My question is why was cement used and should we leave it alone? How can we change the tiles?
Old 04-05-08, 11:27 AM
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Sounds like a mud bed and that is a very good tiling surface if done right. You don't see much of that anymore, but it was mainly used to bring the rooms floor height level with other rooms.

You can try and chisel the tiles off, but you will probably damage the mud bed. Depending on how it turns out, you might be able to just thinset new tile over it, if not, the bed needs to be removed and reapplied.

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