All tiles have not stuck

[Superally]

I put my hands up to using 6mm ply...bad move. Tiles have only been laid 1 week and not seen much traffic as the project aint finished yet. Sides and back of ply was SBR'd. My understanding of this is to stop any water getting into the ply from either moisture vapour or bath splashes going down the wall. Already spoke to Bal rep and he will entertain a meeting with him. Thanks for input!!

 

[grumpygrouter]

I put my hands up to using 6mm ply...bad move. Tiles have only been laid 1 week and not seen much traffic as the project aint finished yet. Sides and back of ply was SBR'd. My understanding of this is to stop any water getting into the ply from either moisture vapour or bath splashes going down the wall. Already spoke to Bal rep and he will entertain a meeting with him. Thanks for input!!

Glad to see they are listening. Please keep us informed of their decision, it will be interesting for the forums.

 

[White Room]

Don't like ply on the walls, had the grout turn brown from resins bleeding through once and that was enough

 

[david campbell]

it's only a 1.5m2 floor even with using a 6mm ply your tiles should have lasted longer than they did,with small en-suites or b'rooms like this i use only 9mm(nearly no price diff than 6mm from b&q)and have never had any comebacks,but i prime then use toppfix flexi mostly?

 

[Superally]

I have tiled many floors with no problems and most people here have jumped up and down blaming the 6mm ply. Ply was screwed down at 150mm centers and I simply cannot believe in the short space of time that none of the tiles stuck. Its almost as if the 6mm ply was dipped in teflon!!! Will let you all know how I get on with the bal man. Any thoughts on very cold water used for the mix?.....I mixed it outside then brought it into the nice warm house....also like the idea of the ply sucking out the moisture from the addy.

 

[oldgit]

if you had used fastflex they would have stayed down if your cutting corners which i have done many times with the customers insistence,you must at least use a good 2 pt addy.

 

[ad tiling]

might have mixed addy to thick and dry

 

[beanz]

BAL say not to prime ply with their addys Beanz.

Ah! Sorry read it wrong. Although, in all honesty i'd prime it regardless.

 

[Superally]

Well, met with Bal man today and he had one look at the ply and said that there must have been oil/preservative coated on the ply (not by me). As in my first post all tiles pinged up with no spintering of the wood. But you all know that 6mm wbp ply is duff for tiling onto so lets hope that the thicker stuff has not got this coating on it also. Was going to go back to B+Q and ask them about it but hey I'm sure they could not care less!! Think backer board would have been better as you dont know where the ply has come from.

 

[beanz]

With the prices of backerboard and ply at the moment, i'm trying to think of a good reason for using ply. Interesting about the coating on the ply, cheers for the heads-up.

 

[Gazzatile]

Having spoken to a timber supplier he tells me that even exterior ply is not waterproof just the adhesive holding the sheets together so this can mean the tiled surface can swell from the water in the adhesive and this will not help keeping tiles on to the board

 

[bitter&twisted]

I think the main problem was you put the adhesive on the tile not the floor

 

[Wylie]

I think the main problem was you put the adhesive on the tile not the floor

I would go with that and if there was any dust on the floor and the addy to thick:yikes:

 

[G&B Bath&Tile]

Great insight from everyone. My thoughts to look at,
1: Will the board absorb any water? Or does it bead up?
2: Sounds like the addy/thinset dried to fast. Mixture of addy was to dry, or board was to dry. (sucks the moisture from your addy/thinset) in which I reccomend slightly wetting down the board (I usually do this with a wet sponge removing dust anyways).
I really do not see the board thickness affecting the bond this early in the game. Hope this helps

Brett

 

[aflemi]

I would go with that and if there was any dust on the floor and the addy to thick:yikes:

I'm jumping on this thread a bit as I am about to lay 10,, rough-faced porcelain floor tiles onto 12m ply over floorboards (I have sealed the underside with SBR). In applying wall tiles first the ply has got dusty + a few splashes of wall addy etc. Is it ok to give it a good clean with hot water and let it dry fully??