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NATURE ROOF
SOLUTION 1 (USING DRAINAGE BOARD): 0-5°

  • Technical Data

    Weight *100-300 kg/m² or 1.0-3.0 KN/m² 
    Build-up depth100-250 mm
    Roof pitch0-5° (0-9 %)
    Vegetation formherbs, wildflowers, grasses, sedum
    Water retention60 - 70 %
    Discharge coefficient **C=0.56 - 0.27
    Water storageca. 30 - 80 l/m²
    Discharge yield ***81-168 l/s x ha
    Ecological value
    Maintenance costs
    Cost factor
    *Depending on the load capacity of the substructure, Optigreen "High Density (HD)" or "Low Density (LD)" substrates can be used. Weight specifications refer to saturated conditions; dry weight is approximately 60 - 70 % of the saturated weight.
    **Depends on slope and system solution. Determined at 0° according to FLL guidelines.
    ***Determined according to FLL discharge coefficient measurements using a 15-minute reference rainfall r(15) = 300 l/s x ha.
  • Brief Description

    Optigreen Sedum & Wildflower Vegetation Mat

    • Pre-cultivated sedum and wildflower mat for the rapid establishment of vegetation in order to prevent wind erosion, with decomposable carrier.
    • Alternative wildflower-based vegetation mats are available.
    • Alternatively, plug planting (and dry seeding if required) to planting specification.

    OPTIGREEN EXTENSIVE SUBSTRATE TYPE E (50 - 200 MM)

    • A substrate with high water storage capacity and good air porosity, tailored to extensive multi layer systems.
    • Mounds of up to 200 mm, as required.
    • Download Data Sheet

    OPTIGREEN COMBI INSPECTION CHAMBER (NOT SHOWN IN THE DRAWING)

    • Simple control of roof drainage outlets.
    • Extendable in 100 mm increments.
    • Side and top drainage openings.
    • Download Data Sheet

    OPTIGREEN FILTER FLEECE TYPE 105

    • Prevents fine particles from forming sludge in the drainage layer; high water permeability.
    • Download Data Sheet

    Optigreen Drainage Board Type FKD 40 (40 mm)

    • Rapid discharge of surplus water.
    • Prevents accumulation of water on roofs with minimal or no drainage falls roofs and over long drainage runs.
    • Light-weight build-up with high drainage capacity.
    • Good water storage capacity.
    • Download Data Sheet

    OPTIGREEN PROTECTION AND STORAGE FLEECE TYPE RMS 300

    • Protects the roof membrane against damage and stores water.
    • For inverted roofs use the Optigreen Trickle Protection Mat Type RS instead of the RMS Fleece.
    • Download Data Sheet
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