Public Roof
Solution 3 Truck


  • Pedestrian areas
  • Areas accessible to cars and trucks
  • Fire accress
  • Can be combined with green surfaces on the roof
  • Shallow depth build-up and lightweight
  • Inverted roof: Suitable with Building Protection and Drainage Element FKD 25 plus and FKD 60BU
Weightfrom 780 kg/m² or 7.8 KN/m² 
Build-up depthfrom 340 mm
Roof pitch1-5° (2-9 %)
Load class3 (max. 160 KN/ m² and 16 t vehicle weight)
*Roofs with zero degree falls do not meet FLL guidelines and Optigreen Systems should not be used without consultation.

Paving (60–120 mm, according to the load requirement)

  • Surface layer (e.g. interlocking paving, slabs, concrete)

Bedding stone chippings 0–5 mm (30–50 mm)

  • Screed layer for surfacing material

Base layer of gravel 0–22 or 0–32 mm (100–200 mm)

  • Provides load-bearing capacity and distribution and is used to create inclines
  • Lime-free material
  • Lightweight build-up with Optipor


Optigreen Protection, Separation and Slip Layer SGL 500 and Optigreen Separation and Slip Sheet TGF 0.2