RETENTION ROOF FLOW CONTROL INTENSIVE

- For intensive green roofs
- Optigreen Water Retention Box WRB, including Flow Control system
- Additional storage volume of approximately 75 l/m² in Water Retention Box WRB 85i. Maximum storage volume of 140 l/m² in Water Retention Box WRB 150
- Very low discharge through individual Flow Control system setting
- Discharge yield, also less than 1 l/s adjustable
- Low weight due to cavity type construction of the Water Retention Box WRB
- Increased evaporation performance due to integrated capillary system
- Rainfall runoff model with the RWS 4.0 rainwater simulation program
Ecological value | ![]() |
Maintenance costs | ![]() |