Shower tile turning dark!!!!

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Old 01-25-03, 06:43 AM
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Shower tile turning dark!!!!

After moving into a newly built house there were some shower tile (not all) that appeared darker than some of the other tile.
As the weeks whey by it appears some tile were still getting darker. After calling the tile guy he thought the tile was absorbing the water and turning the tile darker.

To test we placed about an inch of water in a bucket and placed two tile in the bucket so that only an inch of the tile was in the water. The next day, sure enough, you could see that about 3/4 up the tile was darker and when you turn the tile over you can see the water was 3/4 up the clay side.

This is the first time I have EVER seen this.

So, is this a problem with the tile or a problem that is was not installed properly.
 
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Old 01-25-03, 06:52 AM
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Shouldn't be major problem......as there are a lot of wall tiles that have a high absorbency rate (maybe 20%).

Shouldn't be if......thinset was used to install the tile onto a water resistant backer board backed up by a properly installed moisture barrier and it is all done over a properly constructed receptor.

If mastic was used and or sheetrock was used and there is no moisture barrier in this case------"LOOK OUT"!
 
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Old 01-25-03, 03:15 PM
brickeyee
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There are grades of tile based on how much moisture they absorb. I cannot find my Testing Society book, but you can probably do a web search and find the info somewhere. Tiles not at the lowest end of water absorption are not intended for wet use like bathroom floors and showers.
 
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Old 01-25-03, 06:03 PM
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True enough,

But,

...tiles at the lower end also are the less expensive tiles and usually 'builders-choice' for that reason. Unfortunately if that route was taken by the builder then it would be safe to assume that other corners were also cut. It would be wise to look a little deeper while there is still a warranty. (If there is!)
 
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