RETENTION ROOF FLOW CONTROL EXTENSIVE AND SEMI-INTENSIVE

  • For extensive 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
Weight 100 kg/m² or 1,0 kN/m² 
Build-up depth 14 cm
Roof pitch 0° 
Vegetation form sedum-herbs-grasses 
Discharge coefficient Project specific settings possible
Additional maxiumum water storage 75 l/m² (WRB)

PERENNIAL PLANTS AND/OR OPTIGREEN SEED MIX EKR AND SEDUM SHOOTS

Proven and specially-balanced seed mix consisting of a wide range of herbs and grasses (as desired) as well as numerous types of sedum shoots

Productdetails:
Seed Mix EKR
Sedum Shoots

EXTENSIVE SUBSTRATE E

(60 MM FOR EXTENSIVE SEDUM GREENING AND 80 -200 MM FOR SEDUM-GRASS-HERBES-, RESPECTIVELY LIGHT INTENSIVE GREENING)

A substrate with high water storage capacity and good air porosity, tailored to extensive multi layer systems.

Productdetails: Extensive Substrate E

SUCTION AND CAPILLARY FLEECE RMS 500 K

Optimal water distribution below the substrate layer

Productdetails: RMS 500 K

WATER RETENTION BOX WRB 80F

High cavity volume for water retention
Water retention adjustable to the green roof build-up above
Low weight
High water storage capacity
Stackable for easy transport
With capillary columns

Productdetails: WRB 80F

FLOW CONTROL SYSTEM

(NOT SHOWN IN THE DRAWING)

Throttle with defined perforations that allows a delayed water discharge
Permanent accumulation of stormwater possible up to a defined height

Productdetails: Flow Control System

PROTECTION AND STORAGE FLEECE RMS 300

Protects Root Barrier membrane or roof membrane from damage and stores water

Productdetails: RMS 300