Advice On Bathroom Prep.

[Cabnero]

Hi guys I was hoping to get some advice on prepping my mum's bathroom for tiling. The floor is floorboards covered in vinyl tile but as there is going to be moving of pipework most of this had to come up so was going to replace it with 18mm wbp ply primed underneath and edges. Although only a small area wanted to use a leveling system out of curiosity. Floor tiles are 60 x 60 porcelain and wall tiles are 60 x 30. Wanted to match the grout lines on the floor and walls. Do the clips in the leveling systems act as spacers in which case I would need to use this for the walls also?

The walls are half tiled and half I think rendered with a very bubbly finish which had been painted. Almost like artex. I was going to dot and dab plaster board the tank. I was also curious about using 10mm marmox. Would this be OK. One of the walls is external. Are there any considerations for this.

Many thanks for your help

 

[Ollie02948]

Are you wanting tiles to finish flush with top of the tray?

 

[Cabnero]

Hi Ollie. Thanks for answering. Originally I just wanted to loose as much of the tray as I could. I guess it may look better if they did finish flush but as long as they don't go over the top of the tray I'll be happy. I will bow to your knowledge though. Thanks.

 

[Spare Tool]

Can the tray not sit on the ply, problem solved

 

[Ollie02948]

If your wanting it to finish flush you would have to build a base in the sub floor same size as tray to make it flush.

 

[Cabnero]

Wow talk about not setting the wood for the tress! I didn't even consider sitting the tray on top. I was just thinking about it on the joists. I cab speak my mum about that. If we go down this road can i ask, you guys would always either overboard the ply or use ditra. You would rarely if ever tile directly on to the ply as a rule.

Ollie thanks for you're answer but can you clarify what you mean about the base. I put in an impey aqua Dec in at home a few years back and I plyed in between the joists. Is that what you mean? If so then I need to worry about the heights with the tile plus ditra.

Thanks again foryour continted assistance

 

[Spare Tool]

You could lay 12mill ply on joists and fix tray on it, 18mil ply rest of floor then overboard with 6mil Hardi and tile and you'd end up with around 5mil lip below tray

 

[Cabnero]

Thanks Andy that makes sense. Would you mind advising re garding my previous message. As a matter of course di you guys not tile directly onto ply. I have done this in the pay and not had problems but id rather be 100% rather than 95% . I have only done three courses but have tiled four bathrooms in the past and id ratger be sure. I hope you guys don't mind these questions just wanna get things right. Thanks again.

 

[Ollie02948]

Like it says in previous posts. Make sure you overboard it with a suitable tile backer board.