Tileing on plaster board in bathroom/shower area
Hi guys, I'm having a new bathroom upstairs and replacing the bath with a shower and shower tray. The builder is going to take off the existing plaster and put in new plaster board, he will then tile upon this. A friend has advised that this is not ideal as if water gets behind the tile they are all prone to fall off. The builder is not willing to do the work any other way. What would you recommend?