Drainage membranes are effective, high-performance protection and drainage systems for underground garage floors, terraces with paving stone or wooden coverings, and for extensively or intensively greened flat roofs. Essentially, an efficient area drainage for green roofs is necessary to protect them from waterlogging, which damages the green roof and encourages moss formation.
For this purpose, two-layer drainage sheets such as PM TERRA-TEC are used. In addition to their drainage function, single-layer drain and storage elements for green roofs offer the advantage that they can serve extensively or intensively green roofs as valuable water storage.
This allows greening to be carried out, which can also go for a long time without watering.
