RETENTION ROOF 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
|Weight *||120 kg/m² or 1,2 kN/m²|
|Build-up depth||12 cm|
|Roof pitch||0 - 5°|
|Discharge coefficient **||Cs = 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.
SEED MIX EKR AND SEDUM SHOOTS
EXTENSIVE SUBSTRATE E (60 MM)
A 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
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