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Old 01-04-2012, 10:34 PM   #1
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I have a shower floor that is tiled. I am re-doing the bathroom below it and after I abated the sheetrock on the ceiling, I found out that the upstairs shower is leaking. I am wanting to get rid of the tile shower floor and put in something more water tight. I am thinking about a poured shower floor. Can I just remove the tile and put down the waterproof membrane on the mortar that is already there since it is already sloped for the drain? Then add more concrete on top of the membrane? I guess I'm looking for suggestions.

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Old 01-05-2012, 02:27 AM   #2
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Originally Posted by mairj40 View Post
I have a shower floor that is tiled...Can I just remove the tile...
and put down the waterproof membrane on the mortar that is already there
Have you ever removed tile set in a mortar bed?
The odds of having anything usable remaining afterward are real slim.
Better to plan on taking that shower pan area down to the joists and starting over.

hth

ps have you fully investigated where the leak is from?
the drain fittings are far more likely to be the problem

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Last edited by TarheelTerp; 01-05-2012 at 03:31 AM.
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Old 01-05-2012, 02:47 PM   #3
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I have not yet determined where exactly the leak is coming from. I caulked around the drain and in a couple spots where the grout was missing from the tile. We have been planning on ripping the shower out and re-doing the pan, but we need to finish our downstairs bathroom first. I am just trying to stop it temporarily so I can get the sheetrock hung in the lower bathroom and get the room finished up. Then I can tear into the upstairs shower once we have a useable shower downstairs. I haven't checked to see if the leak is stopped yet. I will check tonight after work.
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Old 01-05-2012, 02:51 PM   #4
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Can I just remove the tile and put down the waterproof membrane on the mortar that is already there since it is already sloped for the drain?
Nope!
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Old 01-05-2012, 02:56 PM   #5
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Originally Posted by mairj40 View Post
I am just trying to stop it temporarily so I can get the sheetrock hung in the lower bathroom and get the room finished up. Then I can...
Oh well... the best laid plans and all that.
Real world circumstances have interrupted the plan.

As you KNOW you have a problem and you KNOW you'll prefer to change things on the 2nd floor rather substantially anyway...
I'll suggest that you deal with the upstairs before closing in the ceiling below.

hth
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Old 01-05-2012, 08:18 PM   #6
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yes indeed tarheel hit the nail on the head...deal with the 2nd floor issue 1st ...and as bud said can you put membrane over existing mortor....NOPE AGAIN

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