Do I need a decoupling mat over self leveling?

[FrankTheTiler]

Hi all, any help would be greatly appreciated. The kitchen floor I'm tiling (with 600x300 porc) is concrete, it does need levelling and was planning on using mapei. Once I've self levelled would I still need a de coupling membrane on top? I couldn't see any cracks, but there may well be some.

thanks

 

[Dave]

Hi all, any help would be greatly appreciated. The kitchen floor I'm tiling (with 600x300 porc) is concrete, it does need levelling and was planning on using mapei. Once I've self levelled would I still need a de coupling membrane on top? I couldn't see any cracks, but there may well be some.

thanks

If there’s no major cracks then No.

 

[Andrew Owens]

No it should be ok, especially if it's a small floor.