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Old 08-26-2012, 01:05 AM   #1
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Tile floor


I just removed the tile from floor in my bathroom and there is thinset on cement board still remaining, do I try to remove the thinset or just remove the cement board? I think both will be difficult but which one is the easiest?

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Old 08-26-2012, 05:15 AM   #2
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I am surprised the tiles. Came up without destroying the backer board. I would grind down orsanddownthethinset that is ontop of the backer board and go from there

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Old 08-26-2012, 05:41 AM   #3
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I would remove the board and start fresh-----------Now you are facing a choice----

Here's why--

You need a flat surface for tile---really flat'

If the original tile popped off---the installer had trouble---did he have trouble with the backer install also? Mud set under the board?

Grinding will make a mess that will take longer to clean up than replacing the board.
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Old 08-27-2012, 09:33 AM   #4
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I am surprised the tiles. Came up without destroying the backer board. I would grind down orsanddownthethinset that is ontop of the backer board and go from there
The tiles did not come up easily but the board was intact. I am not looking forward to the next step but I do want to remove thinset because I heard that the board might be clued down to subfloor and I do not want to deal with that. Thanks
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Old 08-27-2012, 09:34 AM   #5
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I would remove the board and start fresh-----------Now you are facing a choice----

Here's why--

You need a flat surface for tile---really flat'

If the original tile popped off---the installer had trouble---did he have trouble with the backer install also? Mud set under the board?

Grinding will make a mess that will take longer to clean up than replacing the board.
The tiles did not come up easily but the board was intact. I am not looking forward to the next step but I do want to remove thinset because I heard that the board might be clued down to subfloor and I do not want to deal with that. Thanks
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Old 08-27-2012, 09:55 AM   #6
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The backer board is most likely screwed and should have thunder between the subfloor and the backer board. Take a pic of what the floor looks like now
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Old 08-27-2012, 10:33 PM   #7
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The backer board is most likely screwed and should have thunder between the subfloor and the backer board. Take a pic of what the floor looks like now
this is a pic of the board
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Tile floor-cement-board.jpg  
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Old 08-27-2012, 10:36 PM   #8
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this is a pic of the board
this is another pic of board
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Tile floor-cement.jpg  
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Old 08-27-2012, 11:28 PM   #9
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Tile floor


Poor adhesion of the tile.....that shouldn't look that clean.
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Old 08-28-2012, 01:50 AM   #10
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Poor adhesion of the tile.....that shouldn't look that clean.
I do not know that much about tiling but this tile did not come up easy. I had to use a hammer and chisel to get it up. Do you think I should use a angle grinder to get the thinset up?
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Old 08-28-2012, 04:05 AM   #11
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You wil be there for ever. The house will be a dust bowl.

Get your chisel under the Durrock and remove it.

If you really want to save that---buy self leveling compound and use that to flatten the surface.
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Old 08-28-2012, 08:37 AM   #12
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You wil be there for ever. The house will be a dust bowl.
What he said. Pray they didn't screw the hell out of it down to the subfloor. I know I did with my first bath. Floor is absolutely rock-solid but there's not a prayer in hell that'd help removing it. Your least-worst way to get it up would probably be to use a diamond blade in a circular saw and cut it along the joists, but just deep enough to cut the durock. Then pry it up and see how it was put down. With luck it'll just have been glued down. Otherwise set the saw deeper for the subfloor too.

That previous tile should not have separated that cleanly. With those grooves that looks like it didn't adhere. Possibly due to the tile being too dry, the thinset left sitting too long or something to that effect.
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Old 08-28-2012, 06:30 PM   #13
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You wil be there for ever. The house will be a dust bowl.

Get your chisel under the Durrock and remove it.

If you really want to save that---buy self leveling compound and use that to flatten the surface.

I put down eight new tiles that I plan on using for the new project and they are absolute level. I laid the leveler on the floor. Fear is my problem that the work will not be done well enough to last. The person that I planned on using for the job told me that he would tile over the thinset and that makes me mervous. He told me he would tile over the tile and that made me nervous that is why I removed it. If i can make it level I could do the job myself but I dont wnat to take achnace and mess it up.
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Old 08-28-2012, 06:57 PM   #14
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The person that I planned on using for the job told me that he would tile over the thinset and that makes me mervous. He told me he would tile over the tile and that made me nervous that is why I removed it. If i can make it level I could do the job myself but I dont wnat to take achnace and mess it up.
You're a nervous kinda person. If the board and floor is in good shape, there is no reason why not to go over the thin set. I'd knock down any ridges and go. No need for self leveling unless it's out of level and you wanna correct that. Flat is what you need, level would be nice too

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Old 08-28-2012, 11:42 PM   #15
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thanks for all the advice I received

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