ECONOMY ROOF
A popular standard construction for extensive Green Roofs (0-5°)
The ECONOMY ROOF system has proven itself in practice for decades. Drainage takes place via a drainage board (FKD), which is also well-suited to non-pitched roofs. The ECONOMY ROOF is particularly resistant and can be used on most standard roofs.
Like all Optigrün system structures, the ECONOMY ROOF also meets the requirements of the FLL Green Roof Guidelines.
| Ecological value |  |
| Maintenance costs |  |
| Costs* | from 27 €/m2 |
* Standard cost value for 1,000 m², net incl. installation, material varies from region to region.
System structure economy roof
Note: Click on the marked points to get more information!
Sedum sprouts and Seed mix EKR
- 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.
- learn more: Sedum sprouts
- learn more: Seed mix EKR
Extensive Substrate E (60 mm)
- A substrate with high water storage capacity and good air porosity, tailored to extensive multi layer systems.
- 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 Storage Board 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
- learn more: Dainage and Storage Board FKD 25
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 90 kg/m² or 0.9 kN/m² |
| Build-up depth | from 80 mm |
| Roof pitch | 0-5° |
| Vegetation form | herbs-grasses-sedum |
| Water retention | 50-60 %/year |
| Discharge coefficient** | Cs = 0.4-0.5 |
| Water storage | approx. 25 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) 289 KB
- CAD-Drawing (pdf) 1 MB
- CAD-Drawing (dwg) 4 MB