Self-leveling underlayments
All cement-based self-leveling underlayments are approved to level the FLEXSnap™ system as long as they are suitable for the sub-floor in use and that the manufacturer’s installation requirements are met. Gypsum-based self-leveling underlayments are not permitted.
Mortars
The screeding of the FLEXSnap™ system and the installation of ceramic and porcelain tiles of a minimum size of 8’’x 8 are approved with the mortars listed below.