Levelling over slate tiles

Hi

Any help appreciated here ,
If got a quote to do tomorrow polyflor camero .
Subfloor is slate tiles all fixed and solid iv been told will know tomorrow,and they don't really want them taken up.
Could someone give me advice on the best products to use .
If I sound dumb it's because I've never had to level over tiles always been concrete floors for me.

Thanks in advance
Mark

 

Degrease & NA it
Or degrease, prime and 300hd it...

 

Yes, Arditex NA. Clean the tiles then NA no primer. Min 3mm thick.

 

Check the moisture first. If you find moisture, you need DPM Ardex. Usually NA is not effecting, but if is a lot you need to use DPM. Best result is NA then DPM and NA again.
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