Lightweight

Lightweight Sedum green roof 0-15°Sometimes a flat roof support structure requires a lightweight green roof. This special lightweight structure for flat roofs transforms your grey roof, with a pitch of 0 to 15 degrees, into a sustainable green roof almost instantly. Read more about the specifications of this lightweight solution here.


Lightweight roof 0-15° specifications

 Pitch:                                                                    0-15°
 System structure thickness including Sedum:     61-70 mm
 Saturated weight:                                                 40-45 kg/m2


System structure

Lightweight green roof system

1 Sempergreen Sedum-mix blanket 30 mm

Pre-cultivated Sedum-mix blanket, consisting of a mix of 10 to 12 different types of Sedum. Vegetation percentage on delivery: at least 95%.

2 Substrate roll 20 mm

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.

3 Drainage including filterfleece 11-20 mm

The thickness of the drainage layer will depend on the roof structure and the water storage capacity required, depending on the climate.