Tiles cracked again - Tile Advice

[Pirlo_21]

So earlier last year I had my whole bathroom done up including new was and floor tiles.



A few months into it however I noticed the tiles on the bathroom flors has started to crack



The cracks grew longer luckily the tiles was doing another job and he had a looked and was very confused (and upset)



He kindly agreed to do remove the tiles and relay a new set. These were done however they have started to crack again!



He used flexi glue and the first time around he used tile backed boards the second time around he used plywood.



My question is is this the tiles? They were t cheap or is there something wrong with my floor? I had rentokill come out the first time to check the joints and they said they were fine.

The tiler has done other work for me which has been fine so I’m at a loss.

 

[Andy Allen]

could be to much movement in the floor and cheap ceramic tiles..

 

[Albert]

Have they cracked in the same place both times

 

[Pirlo_21]

Have they cracked in the same place both times

seems like it
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could be to much movement in the floor and cheap ceramic tiles..

the tiles were very expensive and the odd thing is it’s only the middle tiles that this seems to have happened

 

[Albert]

What is the subfloor?

 

[Pirlo_21]

It’s a wooden floor

then I think 5mm plywood

 

[Albert]

It’s a wooden floor

then I think 5mm plywood

Plywood of any thickness is not recommended for tiling, if it has cracked twice in the same place then the subfloor definitely needs attention

 

[Pirlo_21]

But before that when it broke the first time I had No More Ply 6mm Pre Primed Tile Backer Board on it?

 

[Albert]

But before that when it broke the first time I had No More Ply 6mm Pre Primed Tile Backer Board on it?

Regardless of what you had on the floor, it sounds as if the subfloor is the problem

 

[Dumbo]

Just because you paid a lot doesnt mean they were not cheap when they came out of the factory

 

[Ajax123]

cheap or expensive tiles will crack if there is too much flex i the subfloor. I suspect that is your issue. get a glass of water and place it on the floor. Then walk on the floor, and then jump gently on the floor to see if there is "bounce" (the water will ripple) if there is bounce that is your issue. a bouncy floor is not suitable for tiling.