Screed, on the other hand, is applied on top of a concrete floor base or subfloor to create a smooth, level surface for the final floor covering; it is usually made from a similar mix of cement and sand but has a different consistency and purpose. 9 Mortar's primary function is to ...
When installing a Kerdi Shower, Ditra uncoupling membrane, or Ditra-Heat they want you to use Schluter’s own branded tile adhesive mortars such as: [11] Schluter Set (unmodified) Schluter All-Set Schluter Fast-Set OR an unmodified ANSI 118.1 mortar In all situations EXCEPT: Ditra products ...