You’re going to want a smooth substrate finish if you don’t want to feel any imperfections under the cork flooring, so I would consider a 1-2mm latex self levelling compound to go on top of your levelling screed. No need for an uncoupling membrane.
Any builder merchants should stock Ardex or Mapei products, and I would phone tech support of both to ensure you have the correct product codes. Definitely get fast drying screed with the overall thickness you need to achieve.
Threshold strip under the door tapering from cork to existing flooring outside kitchen.
You’re going to want a smooth substrate finish if you don’t want to feel any imperfections under the cork flooring, so I would consider a 1-2mm latex self levelling compound to go on top of your levelling screed. No need for an uncoupling membrane.
Any builder merchants should stock Ardex or Mapei products, and I would phone tech support of both to ensure you have the correct product codes. Definitely get fast drying screed with the overall thickness you need to achieve.
Threshold strip under the door tapering from cork to existing flooring outside kitchen.