VERSATILE AND VISUALLY APPEALING: THE OPTIGREEN NATURE ROOF
The green roof with a wide range of substrate heights and species diversity
Many cities and municipalities have now developed green concepts that not only specify that roofs should be greened, but in some cases also how. In many cases, there are already minimum requirements for substrate heights so that a correspondingly higher plant diversity can establish itself permanently. In the area of extensive to simply intensive green roofs, the Optigrün NATURE ROOF is the form of green roof that offers a wide range of substrate heights and species diversity and can therefore also achieve the highest ecological value.
Ecological compensation areas
The NATURE ROOF is a varied and visually appealing green roof solution. With a basic system structure of at least 100 mm and partial elevations of up to 250 mm, the NATURE ROOF system offers a greater variety in the choice of plants and can even be designed as a biodiversity area. The green roof is drained via the solid drainage system (FKD), which is suitable for roofs from 0-5°.
The NATURE ROOF is an intervention-reducing measure within the meaning of the intervention compensation regulation and contributes significantly to a reduction in charges in municipalities with split wastewater charges. The NATURE ROOF meets the requirements of the FLL Green Roof Guidelines.
| Ecological value |  |
| Maintenance costs |  |
| Costs* | from 30 €/m2 |
* Standard cost value for 1,000 m², net incl. installation, material varies from region to region.
System structure nature roof
Note: Click on the marked points to get more information!
Plug plants and/or Sedum sprouts combined with seed mix EKR
- Pre-cultivated sedum, herbs and grass perennials, sedum cuttings, special seed mix with herbs and grasses on demand.
- learn more: Plug Plants
- learn more: Sedum sprouts
- learn more: Seed mix EKR
Extensive substrate E (60-210 mm)
- A substrate with high water storage capacity and good air porosity, tailored to extensive multi layer systems.
- Mounds of up to 250 mm, as required, for increased biodiversity
- learn more: Extensive substrate E
Filter Fleece FIL 105
- Prevents fine particles from forming sludge in the drainage layer
- High water permeability
- learn more: Filter Fleece FIL 105
Drainage and Water Storage Element FKD 40 (40 mm)
- Rapid discharge of surplus water
- Prevents accumulation of water on non-pitched roofs with minimal or no drainage falls and over long drainage runs
- Good water storage capacity
- learn more: Drainage and Water Storage Element FKD 40
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
- learn more: Protection and storage fleece RMS 300
Complementary products
- Not included in the rendering
- Simple control of the roof drains
- Can be raised in 100 mm steps
- Drainage openings at the side and top
- learn more: Inspection Chamber FSK 37
Technical specifications
| Weight* | from 95 kg/m² or 0.95 kN/m² |
| Build-up depth | from 100 mm |
| Roof pitch | 0-5° |
| Vegetation form | Herbs-grasses-sedum |
| Water retention | 50-70 %/year |
| Discharge coefficient** | Cs = 0.3-0.5 |
| Water storage | approx. 30-80 l/m² |
* Weight specifications refer to saturated conditions; dry weight is approximately 60 - 70 % of the saturated weight.
** In accordance with the current FLL Green Roof Guidelines.
Downloads
- Plant list (pdf) 186 KB
- CAD-Drawing (pdf) 1 MB
- CAD-Drawing (dwg) 5 MB