Optigrün Extensive Multi Layer Substrate E-heavy
Optigrün Extensive Multi Layer Substrate E-heavy is used as a vegetation substrate for extensive green roofs with a multi-layered build-up, for pitched roofs with roof pitch > 5° and for roofs with high load capacity/reserve; suitable for a broad plant species diversity.

Characteristics
Total pore volume | > 60 - 70 Vol% |
Max. water capacity | >= 35 Vol% |
Salt content | <= 3.5 g/l |
Organic substances | < 65 g/l |
pH value | 6.0 - 8.5 |
Weight when saturated* | 1,320-1,680 kg/m³ |
* Please contact Optigrün for precise details on weight in relation to the site location.