Tiling onto a concrete screed, but there's a crack by the door....

[llevram]

Hi, any advice on tiling over a crack 750 wide? Basically there's a 300 resess to the back door and it seems as the builder has patched in the concrete in the small area to the existing original concrete floor after the new back door has been fitted. It also sounds pretty hollow. I know I could use ditra etc but I'm tiling off existing tiles and there's not enough depth for me to use ditra, is there a flat, like 1 or 2mm uncoupling membrane I can use instead?

Cheers in advance

 

[Time's Ran Out]

Bal crack mat is thin or stick a piece of DPM over it.

 

[Flintstone]

Tilemaster anti crack may. I had one similar recently and the builder had put the sand and cement in the channel that needed filling but prep was crap and it was pretty much hovering, chop it out if it is bad and re lay it, worth the extra work now

 

[Stu Lilley]

Hi, any advice on tiling over a crack 750 wide? Basically there's a 300 resess to the back door and it seems as the builder has patched in the concrete in the small area to the existing original concrete floor after the new back door has been fitted. It also sounds pretty hollow. I know I could use ditra etc but I'm tiling off existing tiles and there's not enough depth for me to use ditra, is there a flat, like 1 or 2mm uncoupling membrane I can use instead?

Cheers in advance

use Mapetex