Green roof / flat roof

Green areas and flat roofs

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 DRAIN-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.

The advantages of green roofs

  • Longer roof life
  • High retention of rainwater
  • Improved sound insulation
  • Cooling effect outside and inside in summer
  • Warming effect in winter
  • Binding of fine dust and pollutants
  • Habitat for plants and animals
Layers
Drainage membrane
Two layers
PM DRAIN-TEC

PM DRAIN-TEC is a high-quality protection and drainage system as well as the universal solution for horizontal surface drainage for green roofs.

Dimpled sheet
Single ply
PM P-STANDARD GS

PM P-STANDARD GS is a water-storing perforated dimpled membrane and is the ideal solution for extensive green roofs.

Drainage membrane
Two layers
PM P-STANDARD GS-GEOTEX

PM P-STANDARD GS-GEOTEX is a water-storing drainage membrane and is the ideal solution for extensive green roofs.

Dimpled sheet
Single ply
PM P-20

PM P-20 is a water-storing, perforated special knobbed membrane and is the ideal solution for extensive and intensive green roofs. In the green roof, it takes on the function of a protective and water storage layer.

Drainage membrane
Two layers
PM P-20-GEOTEX

PM P-20-GEOTEX is a water-storing drainage membrane with an integrated geotextile and is considered the ideal solution for extensive and intensive green roofs. In the green roof, it takes on the function of a protective, filter, seepage and water-storage layer.

Dimpled sheet in plate form
Single ply
PM P-40

PM P-40 is a water-storing, perforated dimpled sheet in plate form for intensive green roofs. It offers a multiple of drainage and water storage capacity.

Dimpled sheet in plate form
Single ply
PM P-60

PM P-60 is a water-storing, perforated dimpled sheet in plate form for intensive green roofs. It offers an extended drainage and water-storage capacity. In the green roof, it takes on the function of an extremely powerful water-storage layer.