This system provides for the waterproofing of expansion joints through the use of the polyurethane sealant Diaseal Strong, to be applied inside the joint, capable of resisting expansion movements and mechanical stress. In combination with Diaseal Strong, the elastic band in TNT Safety Joint Roll and a liquid waterproofing agent (Acriflex X-Pro or Acriflex Rapido) are used.

Once fully cured, the traditional outdoor tile can be applied by using a water-based glue.