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robin2107 03-11-2007 12:24 PM

Problem Glass Tile Shower
 
I recently installed glass tile on a shower that was completely redone. The shower originally had a metal lath slab floor that we replaced it with a rubber membrane and mud pack. We then put down thinset and laid the glass tile and then grouted the tile. We finished by sealing the tile. Now the bottom of the shower and the walls about 8 inches up look water logged through the glass. Does anybody have any ideas of what might have happened and how it can be resolved?

Thanks,

Pete

AtlanticWBConst. 03-11-2007 12:35 PM

I'm not a plumber, and I am not a shower enclosure expert.

But:

What are the wall's materialss under the tile comprised of?
Could you have a leak in your line somewhere in the wall?
Check your drain, could water be escaping thru that somehow?

robin2107 03-11-2007 12:38 PM

The walls are green board. It's almost like the floor is absorbing water.

AtlanticWBConst. 03-11-2007 01:07 PM

Quote:

Originally Posted by robin2107 (Post 36602)
The walls are green board. It's almost like the floor is absorbing water.


ohhh....not good....

AtlanticWBConst. 03-11-2007 01:16 PM

As you might have read already on this site....a vapor barrier on the rough framing with cement board installed over it along with silicone is really the way to go when installing shower tile work.

But, that's 'water' under the bridge... or in this case...under the tile?

:huh:

Sorry to make a 'pun' at your expense....but it was there and I had to ... er....um .....sorry...

Anyways - did you roll the membrane up the wall? Did you make sure that it was not cut or penetrated at all any where along the pan area and up the wall?

robin2107 03-11-2007 01:20 PM

There where no punctures and the membrane went up the wall to about the point that it looks water logged - 8 inches.

AtlanticWBConst. 03-11-2007 01:30 PM

Quote:

Originally Posted by robin2107 (Post 36612)
There where no punctures and the membrane went up the wall to about the point that it looks water logged - 8 inches.

Wow...I think that tells you something...the water is being held at that 8 inches because of the 'basin' that was created with the membrane. So the membrane is holding it.

One area to check is where your tile meets the shower pan itself...

This article talks about some factors/area to examine with a leaky shower:

http://www.thisoldhouse.com/toh/know...218790,00.html

AtlanticWBConst. 03-11-2007 01:31 PM

Also,

You could send a PM to R&D Tile, a member on this forum site....regarding this issue.

robin2107 03-11-2007 01:40 PM

Thanks a bunch. I'll read the article right away.

Mike Finley 04-23-2007 08:19 PM

The green board behind your tile is wicking water up from the pan. Simple as that. Green board shouldn't have been used, but the problem isn't that simple, even CBU and Hardi will wick, but not as bad. DensShield would have been a better choice.

Glass tiles require a bullet proof system to ensure no water wicks up behind them. This is going on in showers all over the country, but you can
t see through stone, cermaic and porcelain tile so nobody knows about it. Glass you can see through.

Time for a tear out unfortunately.


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