cracked floor tiles new build - TilersForums.com

[Neil fraser]

Two floors in upstairs new build have a hairline crack along plywood edge in middle of the floor. The builder laid 6mm ply and screwed it down, flexible cement used. The question is who is at fault tilers or builder.

 

[White Room]

Hi and welcome....6mm ply is no way enough, BS states 15mm.

 

[Ian]

As above, the ply is the problem here.

- - - Updated - - -

Just to add, the tiler should have known not to tile to 6mm ply.

 

[Neil fraser]

That was spec builder wanted all floors have dropped as silicone has burst round floor edges

 

[White Room]

Is this a new build....

 

[CJ]

Another case of "The builder knows best"

:mad2:

 

[Ian]

That was spec builder wanted all floors have dropped as silicone has burst round floor edges

The spec is wrong, min 15mm ply or use a 6mm cement board.

 

[Neil fraser]

Yea a new build now 10 months ago I have seen this happen on 18mm ply before but it was years ago. A small hairline crack but the tile is sucked down ay the crack like a v

 

[DHTiling]

New builds with timber floors etc are prone to shrinkage when the heating is turned on, it happens quite a bit , yes the ply is the wrong thickness and could have contributed to the cracked tile/tiles...

 

[Neil fraser]

So who is to blame the builder for supplying wrong spec or me for tiling it