Quartz tiles fixing to plyboard in bathroom

[chrislew]

Hi Guys and Girls
I ve got to lay some quartz tiles onto a bathroom floor on plyboard any ideas what type of adhesive(make) to use and any possible snags please?:smilewinkgrin:

 

[swanman]

I would use ultimate flex adhesive by gran fixgran fix

 

[Ian]

Hi Guys and Girls
I ve got to lay some quartz tiles onto a bathroom floor on plyboard any ideas what type of adhesive(make) to use and any possible snags please?:smilewinkgrin:

Is it a ply floor or a ply overlay? Can you use a cement board instead of ply/over the ply?

 

[chrislew]

Its a ply floor:smilewinkgrin:

 

[Sean SML Tiling]

Over board using a cement board or theres a good chance you will be replacing it a few months down the line.

 

[Martyn Leeds]

Definitely over-board.
Non-negotiable for me.

 

[beanz]

How big is the floor? How thick is the ply? Is the ply directly on the joists? Is it free of deflection?

 

[chrislew]

the ply is 12mm thick and the ply is on the joists

 

[beanz]

I don't think 12mm is even close to being enough..

 

[cam_low]

18mm minimum ply then overboard with 6/10mm tile backer board glued and screwed.

 

[Stef]

the ply is 12mm thick and the ply is on the joists

That will fail!! Nowhere near thick enough especially over the joists,
As stated above min 18mm then overboard with 6mm Hardie.
If your down at joist level then put in extra dwangs, noggins to strengthen up the floor.

 

[Brian the Tile]

no problem with ply ,most on here say no you must not use it,well i have laid tiles on ply for years with no problems ,ply to be as thick as you can screwed every 4 inch square so there is no movement,ask at your tile store for the best flexible adhesive and grout you can buy, make sure yo seal the ply and you should have no problems ,but better still get a tiler in to do it for you who isnt afraid to tile on ply

 

[Mr Tiler]

How can you fix the ply down at 4 inch centres if it is sitting on top of bare joists? Not a sarcastic question mate cheers

 

[J Sid]

Why take the chance on tiling on ply. Put some detra on it and it will not fail, and is a small extra cost.

 

[Brian the Tile]

hi mr tea bag ,you dont come across many ply floors onto joists ,i presume the ply was onto floorboards,maybe the poster will let us know