Thread: Ceramic tiles changing color
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Default Ceramic tiles changing color
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Its the drywall behind tiles.tiles and grout is not 100% waterproof.there is not cement board behind tiles.it must be green drywall which they say is waterproof but its only to some extent. Second is the glue used for tiles. It should be thinset cement in cement or beckerboard. Water goes through the silicon or grout or tiles and with moisture drywall gets wet which discolored the tiles

And?

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Tekkie
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