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Retention Roof
Meander 30

  • Technical Specifications

    Weight *starting at 90 kg/m² or 0.9 KN/m² *
    Layer height90 mm
    Roof pitch0-5° (0-9 %)
    Vegetation formsedum-moss
    Water retention50 %
    Discharge coefficientC=0.01 **
    Discharge yield ***3 l/s x ha
    Water storageca. 21 l/m² -40 l/m² temporarily
    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. In accordance with the requirements of the FLL guideline, the specified weight does not take temporary water accumulation into account.
    **For the calculation of the dimensions of the pipe we recommend the discharge coefficient C = 0.1. C= 0.01 determined for 2 % according to the FLL guideline.
    ***Determined according to FLL discharge coefficient measurements using a 15-minute reference rainfall r(15) = 300 l/s x ha.
  • Brief Description

    PERENNIAL PLANTS AND/OR OPTIGREEN SEED MIX TYPE E 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.
    • Download Data Sheet

    OPTIGREEN EXTENSIVE SUBSTRATE TYPE E
    (60 MM) *

    • A substrate with high water storage capacity and good air porosity, tailored to extensive multi layer systems.
    • 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 Meander Panels 30 (30 mm)

    • Optigreen Meander Panels 30 (30 mm).
    • Strong delay of discharge of surplus water.
    • Prevents accumulation of water for non-pitched roofs and large drainage lengths.
    • Lighter build-up with better drainage performance.
    • 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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