polypropylene drainage board / water storage / drainage / for green roofs
WRB 85I Optigrün International AG



  • Material:


  • Function:

    water storage, drainage

  • Applications:

    for green roofs


Infiltration trough made of recycled PP intended for surface drainage in combination with a Flow Control System; high water retention potential, used for extensive green roofs with 0° roof pitch.

Material recycled PP (polypropylene)
Compressive strength
(DIN ISO 25619-2)approx. 825 kN/m² with approx.
10 % compression
Discharge capacityRoof pitch 2% = 6.30 l/s*m
Nominal thicknessapprox. 85 mm
Grammageapprox. 5.6 kg/m²