Drainage Material Optipor 10/75 MI
Extra lightweight, pressure-resistant drainage material under intensive green roofs with or without water accumulation, for 0° - 5° roof pitch. Particularly suitable for terrain modelling with very high layer structure heights and severely restricted load reserves for the ceiling construction.
| Material | Foam glass gravel |
| Grain size | 10 - 75 mm |
| Weight compacted at max. retained water | 290 kg/m³ / EN 12087 |
| Weight delivered wet compacted | max. 195kg//m³ |
| Weight delivered wet loose | 125- 150 kg//m³ / EN 1097-3 |
| Water permeability | ca. 600 mm/min |
