Public roof - greenable pavements
Green roofs are green areas on roofs that can be driven on by people, cars and trucks, e.g. parking spaces or access roads. The superstructures must be matched to the planned usage category and the roof construction and insulation.
System structure public roof - greenable pavements
Note: Click on the marked points to get more information!

Lawn paving elements
- Upper trim filled with Greenable Surface Substrate BB
- lawn: RSM 5.1 or 7.2 seed mix for a durable lawn
Suitable bedding material
- e.g. 30–50 mm fine gravel 0/5
- bedding for pavement (surface layer)
- compensation for installation and dimensional tolerances
Base layer
- Gravel 0/32 or 0/45
- layer thickness from 100 mm
- required thickness of the base layer according to the category of use
Filter fleece FIL 300
- Prevents fine particles from forming sludge in the drainage layer; high water permeability, very high robustness class GRC 5
- learn more: Filter fleece 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
- learn more: Building protection and drainage element FKD 60BU
- learn more: Drainage material Perl 8/16
Protection, seperation and slip layer SGL 500 and seperation and slip sheet TGF 0.2
- learn more: Protection, seperation and slip layer SGL 500
- learn more: Seperation and slip sheet TGF 0.2
Technical specifications
Weight | from 650 kg/m² or 6.5 kN/m² |
Build-up depth | from 280 mm |
Roof pitch* | 1-5° |
Load class | 1-3 (max. 20 t vehicle weight) |
* Roofs with zero degree falls do not meet FLL Green Roof Guidelines and Optigrün systems should not be used without consultation.
Downloads
- Checklist (pdf) 175 KB
- CAD-Drawing (pdf) 983 KB
- CAD-Drawing (dwg) 821 KB