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
Weight 320 kg/m² or 3.2 kN/m²
Build-up depth 33 cm
Roof pitch 0° 
Vegetation form Perennials-shrubs-lawn areas
Discharge coefficient Project specific settings possible
Additional maximum water storage from 80 l/m² (WRB 85)

PERENNIAL PLANTS AND/OR 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

INTENSIVE SUBSTRATE I (MIN 230 MM)

ALTERNATIVELY: LAWN SUBSTRATE R (MIN. 200 MM)

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

Productdetails:
Intensive Substrate i
Lawn Substrate R

SUCTION AND CAPILLARY FLEECE RMS 500K

Protects the roof membrane with simultaneous function of separation, water storage, excellent suction and defined filter function.

Productdetails: RMS 500K

WATER RETENTION BOX WRB 85

Water Retention Box made of recycled PP material. With high temporary and possibly permanent retention volume in combination with a Flow Control System for specific regulation of water discharge and/or water storage.

Productdetails: WRB 85

Capillary Bridges

Capillary Bridges to transport stored rainwater from the drainage level into the substrate layer and to increase evaporation (accessories)

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 defined height

Productdetails: Flow Control System

PROTECTION AND STORAGE FLEECE RMS 900

Protects the roof membrane against damage and stores water.
For inverted roofs, use the Optigreen Trickle Protection Fleece RS instead of the RMS fleece.

Productdetails: RMS 900