WATER MANAGEMENT SYSTEM MEANDER FKM 60

  • System solutions with defined water retention
  • High level of reduction of of water discharge during high intensity rainfall whilst retaining good drainage (even for large roof areas)
  • Peak discharge
  • Discharge coefficient Cs (according to FLL): 0.01 - 0.17 at 2° roof pitch
  • Water storage and discharge delay.
  • Suitable for blue roofs
  • For green and gravel roofs
  • Meander FKM 60 prevents accumulation of water in cases of ponding in depths of up to 40 mm
Ecological value
Maintenance costs 
Weight * 120 kg/m²  ot 1,2 kN/m² 
Build-up depth 12 cm
Roof pitch 0 - 5°
Vegetation form Sedum-Kräuter-Gräser
Discharge coefficient ** C= 0,17
Water storage approx. 32 l/m²
Discharge yield *** 51 l/s x ha

* 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 Cs = 0.1. Cs= 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.

VEGETATION MAT

Pre-cultivated sedum mat for the  rapid establishment of vegetation in order to prevent wind erosion, with decomposable carrier
Alternative: wildflower-based vegetation mats or plug planting

Productdetails:
Sedum Cuttings
Seed EKR

EXTENSIVE SUBSTRATE E (60 MM)

Auf mehrschichtige, extensive Bauweise abgestimmtes Substrat mit hoher Wasserspeicherkapazität und gutem LuftporenvolumenA substrate with high water storage capacity and good air porosity, tailored to extensive multi layer systems

Productdetails: Extensive Substrate E

COMBI INSPECTION CHAMBER TKS PLUS

(NOT SHOWN IN THE DRAWING)

Simple control of roof drainage outlets
Extendable in 100 mm increments
Side and top drainage openings

Productdetails: TKS Plus

FILTER FLEECE FIL 105

[Translate to English UK:] Optigrün-Filtervlies Typ 105

Prevents fine particles from forming sludge in the drainage layer
High water permeability

Productdetails: FIL 105

MEANDER WATER RETENTION BOARD FKM 60 (60 MM)

Delays discharge of surplus waster
Prevents accumulation of water
High level of water retention as well as good drainage performance
Reduction of required roof outlets

Productdetails: FKM 60

PROTECTION AND STORAGE FLEECE RMS 300

[Translate to English UK:] OPTIGRÜN- SCHUTZ- UND SPEICHERVLIES TYP RMS 300

Protects the roof membrane against damage and stores water.
For inverted roofs, use the Optigreen Trickle Protection Fleece RSV 120 instead of the RMS Fleece.

Productdetails:
RMS 300
RSV 120