![](https://www.poliflor.net/wp-content/uploads/2021/07/montaggio-prevegetato-sedum-poliflor-3.jpg)
Pre-grown sedum
Extensive green roof system
Extensive green roof system for up to 100% sloping roofs.
Pre-grown sedum system
The pre-grown sedum lawn for the creation of extensive green roof systems on up to 100% sloping surfaces. It is constituted by coconut fibre non-woven geocomposite matched with a polypropylene (PP) geonet filled up with volcanic lapillus and prevegetated with Sedum spp. It is supplied in lawns or rolls 1 x 11 (max) x 0.02 m.; in the case of rolls, it is possible to unroll them on the roof following proper security measures to avoid accidental detachment caused by the wind.
![](https://www.poliflor.net/wp-content/uploads/2021/07/poliflor-prevegetato-sedum-600x600-1.jpg)
System elements
The laying of the lawn has to be made before the implementation of the following (in order of installation, we start with the anti-root waterproof sheath – not included):
- 1100 g/m2 felt used to protect the waterproof sheaths and retain water;
- Composite geomat constituted by polypropylene extruded monofilaments, thermal welded together in their contact points, with double cup structure, matched in extrusive phase to a two-dimensional high resistant geogrid;
- Filling up of geomat with VULCAFLOR® cultivation substrate
- Instant living Sedum lawn
- Inspection slumps for the rain drainages of the roof
- Border gravel, Ø 20-25
- Irrigation system
- L-bar along the perimeter in default of retaining stringcourses
Key features
- Quick installation
- Reduced maintenance
- Use of low-maintenance species with reduced water consumption.
- Versatile
- Possibility of using it on any green roof stratigraphy.
Installation sequence
- Laying of 1100 gr Felt and double cups Geomat then filled up with cultivation substrate
- Laying of the instant living Sedum lawn then ballasted with gravel
- Finished work