Tampered floor & ditra?

[High Peak Tiling]

Hi guys.

Got a job in 2 weeks which requires Ditra. builder has tampered floor quite hard so the floor is no way near flat enough for matting...
What do we do in this instance guys?

I personally would prime concrete slab, thin layer of SLC to flatten it out, then matt it.

 

[Ajax123]

I would do the same but make sure you give consideration to the finished floor height...

 

[High Peak Tiling]

I would do the same but make sure you give consideration to the finished floor height...

Thanks Alan, the finished floor high isnt a problem, the area to be tiled is stepped up from the rest of the house.

Cheers mate.

 

[CJ]

Sounds right to me.