Public Roof Gravel Lawn
- Driveable green areas on roofs; e.e. gravel lawn
- Creation as gravel lawn (SR)
- Inverted roof: Suitable with Building Protection and Drainage Element FKD 60 (BO or BU)
| Weight | from 400 kg/m² or 4,0 kN/m² |
| Build-up depth | from 25 cm |
| Roof pitch* | 1 - 5° |
| Load class** | 1-3 (max. 20 t vehicle weight) |
*Roofs with zero degree falls do not meet FLL guidelines and Optigreen Systems should not be used without consultation.
**In load class 2 (without trucks) a Base Layer is not necessary
Lawn
Gravel Lawn Surfacing Layer SRD
20-30 mm, specially designed surfacing layer
Gravel Lawn Substrate SR
at least 150 mm, specially designed vegetation layer
Base layer
- Base layer of gravel 0–32 mm (height 150 mm minimum)
Filter Fleece FIL 300
Prevents fine particles from forming sludge in the drainage layer; high water permeability, very high robustness class GRC 5
Productdetails: Filtervlies FIL 300
Building Protection and Drainage Element FKD 60BU
- Pressure resistance and accessible by trucks
- Prevents accumulation of water
- Lightweight build-up with high drainage capacity
- Filled with Perl 8/16
Productdetails:
Protection, Separation and Slip Layer SGL 500 and Separation and Slip Sheet TGF 0.2
