Quote:
Originally Posted by look 171
Nothing you do will prevent the seepage into the substrate. The waterproofing is in the back, beyond the backer board so sealing or grout will not help.
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Thanks for the reply. I do not understand the above though. I mean OK the waterproofing is in the back but IF i sealed the grout properly, you are saying water would still come through ? Grout is porous ? (if so, ****)
Yes that big tile moved over the past year, the first 6-7 years or so it was flush with the rest.