Drainage Material Perl 2-10 LA
Optigrün Drainage Material Perl 2-10 LA is used as a drainage layer beneath intensive green roofs without water accumulation, for pressure resistant filling of Drainage Boards and as pressure resistant drainage and equalization layer beneath paving.
| Material | Lava |
| Grading | 2 - 10 mm |
| Salt content | < 1.0 g/l |
| Max. water capacity | 14 - 18 Vol% |
| Water permeability | 180 - 450 mm/min |
| Weight dry | min. 1,000 kg/m³ |
| Weight when saturated | max. 1,300 kg/m³ |
