Lightweight system
We know the desire to have a green roof can sometimes be hampered by the structural capacity. This is why we have a lightweight system to be used where loading weight on the roof is a problem in both new and existing buildings.
Technical specifications
Pitch: 0-15°
System depth: 61-70 mm
Saturated weight: 40-45 kg/m2
System Structure
Sedum blanket – 30mm
Pre-cultivated Sedum-mix blanket, consisting of a mix of 10 to 12 different types of Sedum. Vegetation percentage on delivery: at least 95%.
Substrate roll – 20mm
Substrate roll is a lightweight green roof substrate, manufactured from long mineral wool fibres. It is a good growing medium and ensures good water absorption and tenacity.
Drainage board with filterfleece – 11 to 20mm
The thickness of the drainage layer will depend on the roof structure and the water storage capacity required, depending on the climate.
