Observance of fixed restrictions on discharge
With the Optigrün System Solution Retention Roof Flow Control, which is suitable for green roofs (extensive, intensive) and even for public areas (accessible to vehicles and pedestrians), specified restrictions on discharge can be verifiably observed. The centrepiece of the newly developed system solution is the Optigrün Water Retention Box WRB with Flow Control System. The flow control solution regulates the maximum drainage rate and creates an additional storage area on the roof of max. 80 l/m²