Advice please! - Tile Advice

[Doyley91]

Had a builder in to build a garage, was planning on just painting garage base but was so uneven he laid self levelling compound.

I could not paint so decided best was to tile myself with porcelain.

went out to prep floor and sweep up and noticed the floor was cracked and hollow sounding and decided to partly remove. I’ll obvs have to remove all but can I please get some advice on next steps forward for priming and laying tiles.

Many thanks

 

[judge]

Hi,if your going to tile the floor you will still need to remove existing self leveler and re selflevel before tiling if it's not flat.
Is the floor under the leveler poured concrete or a dry sand/cement mix ?
If it's poured it will have a skin on the top which ideally needs removing and hoovering before priming before you re self level

 

[Doyley91]

Hi,if your going to tile the floor you will still need to remove existing self leveler and re selflevel before tiling if it's not flat.
Is the floor under the leveler poured concrete or a dry sand/cement mix ?
If it's poured it will have a skin on the top which ideally needs removing and hoovering before priming before you re self level

Hi Judge,
Thanks for your reply.
Yeah all the floor is coming up today now, coming up quite easy!
Been looking at a Mapei self levelling, some parts 20mmdeep.
I think priming was the issue in the first place I see a tub of stabilising solution left behind seems to be for decorating and not priming he also mentions pva quite a lot.

base was poured concrete. Can you recommend a good primer?
cheers

 

[judge]

Use the same make primer as the self leveling.just make sure the leveler can be applied to the depth that you need it to go to.
The only issue is if the skin (latience) on the top of the screed is dusty or flakey the primer isn't adehring to the floor properly and you could have a similar issue again.especially if you are using the garage to store a car