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Tanking and Wetrooms Forum
Water getting under tiles of impey tanked former tray
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[QUOTE="Hillmax, post: 989440, member: 61146"] Hi I have a wetroom tray on timber floor. We have an impey shower tray and tanking membrane. Impey Tanking is floor only and goes up 5 inches or so up the wall tiles. We have been having issues with some permanent wet grout lines. Upon inspection it looked like the wet grout areas had a lot of pin holes in them, so builder had the tiler regrout with grout 3000. We let it dry and cure. After a first shower it looks like there is still a problem area. One line stays drenched for long time while others dried up nicely. After 24 hours water droplets are gone, but you see the white stuff that happens with water underneath grout. I can’t see any flaws in the grout , but I reckon the silicone sealant is flawed and water goes in and travels down the membrane underneath the tiles. Attached a picture where you can see silicone not really bonding with the grout and even coming off a bit of the porcelain tile. When the regrouting happened they did not remove the silicone. They couldn’t have possibly replaced grout underneath silicone without damaging the bond. Or maybe they didn’t regrout that segment of grout at all and the flaw was already there. What do you guys think? What should happen next? Can we get away just removing and redoing the silicone or do we need to rake out that line of grout , let it dry and then redo silicone Also is there any reason my porcelain concrete- look tiles would not be bonding great with silicon? Is there a type we should be using ? Any pitfalls we should be aware of? Thank you! [/QUOTE]
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Tanking and Wetrooms Forum
Water getting under tiles of impey tanked former tray
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