Tiling onto plasterboard

[Perry]

the floor will be chipboard, with a layer of 3/8 ply covering it nailed every 100mm unless you lads suggest otherwise

and going back to the primer?? 2 opinions on here, which is the correct one?

cheers

3/8 ply isn't thick enough IMO you have to screw the chipboard to the joists then seal the ply underneath and edges with say sbr screw the ply down 300 centres then use a single part rapid flex adhesive

 

[bob the plumber]

was going to use a raped set flex adhesive, not ready mix, as the tiles will likely be the large variety

 

[peteablard]

Avoid chipboard, use minimum 15mm WBP ply. Always use screws too and not nails. Personally I'd overboard with cement board too but it's not essential.

 

[Perry]

was going to use a raped set flex adhesive, not ready mix, as the tiles will likely be the large variety

Good on the floor but I would use standard flexi on the walls will give you more time

 

[peteablard]

was going to use a raped set flex adhesive, not ready mix, as the tiles will likely be the large variety

That's against the law even with adhesive:yikes:

 

[White Room]

Back skim the tiles as well to fill the profile...

 

[bob the plumber]

arrgghhh, im flappin now? the 3/8 ply that i was going to overboard the floorboards with isnt thick enough?
what about the half inch ply on the stud walls overboarded by 3/8 plastedr board?

 

[peteablard]

The walls are fine. You need to make sure the floor is completely deflection free. Is the chipboard down already?

 

[bob the plumber]

deflection free?? it is chipboard floor boarded in 18mm x 600mm wide boards. Ive just replaced a few of them because the last bathroom the tiles had just been tiled to the chipboard floor, it ended up a right mess.
whats the issue with chipboard floorboard covered by 3/8 ply

thanks for all the help and advice by the way

 

[Perry]

arrgghhh, im flappin now? the 3/8 ply that i was going to overboard the floorboards with isnt thick enough?
what about the half inch ply on the stud walls overboarded by 3/8 plastedr board?

Lol should of done it the other way round

 

[Mike Mike]

"Bob the plumber
Can we fix it?
Bob the plumber
(sharp intake of breath) 'That's gonna cost ya!!'"

 

[Perry]

Always better to ask the questions before you start rather than after

 

[bob the plumber]

why 1/2 inch ply on the floor and not 3/8

 

[White Room]

15mm ply is BS..

 

[bob the plumber]

doh! oh well. will have to sort it