Re-using cement board

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Old 08-18-09, 07:21 PM
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Re-using cement board

I plan on taking up old ceramic tile and linoleum and replacing with new ceramic. Can the old cement board underlay be saved, or will I need to replace it?
 
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Old 08-18-09, 07:27 PM
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You will know when you take up the tile, if you can reuse it or not. Depending on the damage incurred while removeing said tile.
If it's a clean undamaged cement board..your good to go
 
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Old 08-19-09, 06:19 AM
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Thanks, actually now that I have started taking up the old tile, it is 1/4 inch plywood underlay, not cement board. Should I replace this with cement board, or is plywood acceptable?
 
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Old 08-19-09, 11:16 PM
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Some types of plywood are acceptable but not recommended by any tile setter pro I know. Your 1/4" ply is probably luaun which is often used under vinyl but is NOT suitable anywhere in a tile installation. Take it to the curb.

Remove it, hammer down the staples, then re-screw the entire floor. Spread thin set mortar under your new 1/4" tile backer, fasten per directions and tape all seams etc. If you wanna step it up a notch you could install Ditra instead of the CBU.

Jaz
 
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