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 310 kg/m² or 3.1 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 85i)

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

FILTER FLEECE FIL 105

Prevents fine particles from forming sludge in the drainage layer; high water permeability.

Productdetails: FIL 105

WATER RETENTION BOX WRB 85I

Cavity volume suitable for water retention
High pressure stability
Adjusted to respective setup
Low weight
With capillary columns

Productdetails: WRB 85i

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