When fixing wall tiles to stud plasterboard walls, should the plaster be sealed with a pva adhesive first or can the adhesive be applied directly to the plaster?
Andrew
When fixing wall tiles to stud plasterboard walls, should the plaster be sealed with a pva adhesive first or can the adhesive be applied directly to the plaster?
Andrew
The plasterboard should be sealed with a tanking product for the purpose. PVA is not suitable (it's not waterproof). Look at something like BAL WP1 Tanking.
Lots of people do tile directly onto plasterboard without any problem. If you do this, I would suggest adding a waterproofer/plasticer to the grout, such as BAL admix GT1.
If you haven't yet put the plasterboard up, look at using cement based aquapanel instead.
Even if you have, I'd suggest you change it for aquapanel in order to avoid hassle in time.
Rob Graham
I'm just about to start a bathroom tiling job too and had the same initial question. In my case, the entire bathroom is going to be tiled and it's costing me a fair bit in materials so I want to get it right. Could someone clarify the following given that I'm not about to start ripping off all the plasterboard and replacing it.......
TIA, Midge
In my last house I removed the 25year old bathroom tiles from plaster board (handy they print date on plasterboard) and there was no sign of water penetration of dampness and it looked like just normal adhesive and grout had been used. I simply replaced the board and tiled again this time using waterproof adhesive and grout. Worked fine.
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