Flat roof

Flat green roof 0-5°Flat roofs are ideal as green roof. A standard flat roof with a gradient of zero to five degrees is by default water-retaining. You can read more about the system structure for a flat green roof below.


Flat green roof 0-5° specifications

 Pitch:                                                                    0-5°
 System structure thickness including Sedum:     80-110 mm
 Saturated weight:                                                 80-85 kg/m2

System structure

Green roof system structure – flat roof with Sedum

1 Sempergreen Sedum-mix blanket 30 mm

Pre-cultivated Sedum-mix blanket, consisting of a mix of 6 to 8 different types of Sedum. Vegetation percentage on delivery: at least 95%.

2 Roof garden substrate extensive 40 mm

Extensive substrate consisting of lava, pumice, and compost. Produced in accordance with FLL guidelines.

3 Drainage including filterfleece 10-40 mm

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

Download system structure