Perforated HDPE-dimpled membrane with water storage capacity
Büsscher DRAIN 20
Art.No. 94022
Intended use
Drainage and water storage mat for green roofs
The drainage mat is breathable due to perforated areas and can be used in inverted roofing systems.
Packaging
5 rolls of 20 m x 2m = 200 m² per pallet
| Characteristics | Unit | Result |
|---|---|---|
| Length | m | 20 |
| Width | m | 2 |
| Dimple height | mm | 20 |
| Mass per unit area | g/m² | ca. 700 |
| Compressive strength | kN/m² | ca. 150 |
| Water flow capacity in their plane i=1 at 20 kPa | l/(s x m) | ca. 9 |
| Water storagecapability | l/m² | ca. 6 |
| Air volumebetween dimples | l/m² | ca. 14 |
| Thermal resistance | °C | -30 bis +80 |
| Chemical properties | - | resistant to chemicals |
| water permeability normal to the plane | m/s | ca. 100*10-3 |
| Reaction to fire test | Class | E |