high-density polyethylene (HDPE) drainage board / green roof drainage / water storage / under-paving drainage
FKD 25 PLUS Optigrün International AG



  • Material:

    high-density polyethylene (HDPE)

  • Function:

    green roof drainage, water storage, under-paving drainage


Optigrün Protection and Drainage Board FKD 25 plus is installed beneath traffic surfaces and pathways. Also suitable for inverted roofs.

Material Recycled HDPE
Max. compressive strength filledapprox. 460 kN/m² with 5% compression and 35 mm overfill with lava/chippings
Water discharge capacity
(DIN EN ISO 12958)i = 0.02 (=2 % roof pitch): 1.33 l/(m*s)
Nominal thicknessapprox. 27 mm
Grammageapprox. 2,500 g/m²