DURABASE DD 80++ is a drainage mat and is particularly suitable for use in combination with tiles, natural and artificial stone slabs to create large surface drainage both above and below. It can be laid in a gravel/chippings bed and drainage screed as well as directly on the foil. The special arrangement of the studs and channels ensures that there is sufficient drainage space in the long term, even with heavy loads. The free space between the dimpled membrane and the mesh also allows the covering construction to dry through quickly. In addition, the sealing is largely protected from thermal and mechanical loads. The mat joints can be connected to each other in an overlapping, shear-resistant manner.