Help... is this the right way to tile my bathroom?

[bunnycd]

Would really like some advice peeps ***

I had an unfortunate experience with a tiler (I dont think he was one really) I employed this guy to tile my bathroom, he put the tiles on with unibond with 5 dabs and it never bonded after 48 hours the tiles started to fall off from a great height, one even smashed near my babies head so after that I was scared and sacked him and I took the decision to find someone else.

Now, the new guy has said he has 30 years experience and I have followed up his reference but I am a bit worried, he said that my walls are not good enough to tile straight onto and recommended that he puts plasterboard on the walls prior to tiling, is this the right thing to do? I have included photos of my bathroom below but wanted to know what you think? Is there anything I should look out for, is putting plasterboard all over the walls before tiling the right way to go? He also said the wall above bathroom needs plasterboard but this looks ok to me, what do you think?:

 

[bunnycd]

Bunny with painted walls the paint really needs to come off as you want tile adhesive to be stuck to the plaster. Once the paint is off then the walls should be primed with a acrylic primer NOT PVA! Hope you get your money back from the 2nd so called tiler! Just out of interest did you give any money to the first so called tiler???

No I felt sorry for him because he at least turned up but I think it was more complex for him, so I sacked him without payment.

 

[Paul]

Just a question on this from the experienced tilers if a situation arises like this where walls need reboarding and the shower tray was still in position could you cut out the old plasterboard above the shower and reboarding from that point or take the shower tray out and board from the floor to ceiling ?

 

[White Room]

If you was going to reboard on top of the tray plasterboard would not be my first choice, any moisture getting thru to the board would be sucked up like a sponge into the gypsum core.

 

[Paul]

If you was going to reboard on top of the tray plasterboard would not be my first choice, any moisture getting thru to the board would be sucked up like a sponge into the gypsum core.

Aquapanel then it could be done that way to avoid taking the tray out ?

 

[bugs183]

You shouldn't need to take the tray out. the board ideally should sit on top of the tray, allowing enough room for the tile and adhesive width for the shower screen to fit properly. If you can if you replace the boards, put new noggins agianst the tray as this will firm up the tray and support the bottom of the boards. Use waterproof tape between the boards and the shower tray.
Many guys here a using Marmox boards as they are waterproof, and only need waterproof tape at the joints, it is much lighter and easier to cut.