Water Retention Box WRB 150

Optigrün Water Retentionbox WRB 150 on roofs used as retention areas, under extensive and intensive vegetation as well as traffic areas such as terraces, fire brigade access roads, car parks, etc.


Material  Recycled PP (polypropylene)
Nominal thickness approx. 150 mm
Grammage approx. 12,0 kg/m²
Water reservoir up to 140 l/m2
Usable accumulation volume approx. 95,0 Vol. %
Max. discharge capacity approx. 5,0 l/s x m
(at 2% roof pitch)
Compressive strength approx. 715 kN/m2
DIN EN ISO 25619-2