Help! Messed up shower tile install

5 years ago

Hello,
I am a newbie to tile install and decided to do my shower with subway tiles. I painted on a waterproofing membrane on the cement board and then started to install tiles. I used a premixed tile adhesive because the bag said can be used on shower walls but now going back I see that the tech sheet says not to use tile adhesive over a waterproof membrane. It seems to have dried well underneath. I have done the entire thing at this point and there is no way I can tear it all off. Please don’t suggest that.Any suggestions for a remedy?? Should I seal the grout??

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Comments (4)

millworkman
5 years ago
"Any suggestions for a remedy??"

Nope. The moisture will cause that mastic/adhesive to fail and the tile WILL fall off in short order.
User
5 years ago
Remove everything and start over.
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ksc36
5 years ago
Did you grout it yet? What product did you use? What adhesive? Your best bet is to contact the manufacturer of the products used. If the job is complete just use the shower, it will probably last longer than you own the house.
tartanmeup
5 years ago
Sealing the grout will do nothing to help the tile adhesion. Or are you asking if you should just complete the job? I also suggest you contact the product manufacturers and see what they suggest. Get their recommendations in writing.

I see that the tech sheet says not to use tile adhesive over a waterproof membrane. It seems to have dried well underneath.

What product do they recommend instead of a tile adhesive? Not sure how well something dries is a gauge for long term performance.