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

CHARACTERISTICS

  • Traditional multi-layered structure including drainage and filter fleece.
  • Particularly affordable roof greening.
  • Low maintenance requirement.
  • Relatively low biodiversity.
  • Generally suitable for inverted roofs,if applicable. Minimum load for wind up-lift protection should be calculated.
Weight *90-140 kg/m² or 0.9-1.4 KN/m²
Build-up depth80 mm
Roof pitch0 – 5° (0 – 9 %)
Vegetation formsedum-herbs-grasses
Water retention50 – 60 % 
Discharge coefficient **C=0.47 - 0.6
Water storageapprox. 25 l/m²
Discharge yield ***141-180 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.

Optigreen Vegetation Mat

  • Pre-cultivated sedum mat for the rapid establishment of vegetation in order to prevent wind erosion, with decomposable carrier
  • Download Data Sheet

OPTIGREEN EXTENSIVE SUBSTRATE 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 TKS PLUS
(NOT SHOWN IN THE DRAWING)

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

OPTIGREEN FILTER FLEECE FIL 105

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

Optigreen Drainage and Water Storage Element FKD 25 (25 MM)

  • Rapid discharge of surplus water
  • Prevents accumulation of water for non-pitched roofs and large drainage lengths
  • Light-weight build-up with high drainage capacity
  • Download Data Sheet

OPTIGREEN PROTECTION AND STORAGE FLEECE 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