Concrete floor uneven for tiling

[troy 2]

Hi,
I Have a patio that i wish to tile but the floor was poured in two sections and the last is higher by about 20mls in the middle.
Would a Tile Levelling Compound fix this problem.
Many Thanks
Troy2

[scatty56]

20mm is outside the scope of these floor levelling compounds. The joint will also crack the tiles eventually.

[myla]

hello,

best to do a sand and cement screed, fairly dry mix

I would also put an expansion joint where the joint is

regards
myla

[troy 2]

20mm is outside the scope of these floor levelling compounds. The joint will also crack the tiles eventually.
What is the maximun height you can use this product for.
Thanks
troy2