R
Rizzle from the Portizzle
if this is a sand and cement screed it will already have an abraded surface by its nature so you can aproach this in two ways why would i want to decouple the floor when i want it to act as one so wet slurry screed now tile knowing the tile will double the strengh laid into wet sand and cement or you could put down exspanding metal not raising the hight slurry screed then tile still bineded as one layer but with a bit more scope with dealing with the ufh