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Extensive Systems
EXTENSIVE ROOFS ARE A LIGHTWEIGHT, LOW-MAINTENANCE ROOF SYSTEM, TYPICALLY WITH SUCCULENTS OR OTHER HARDY PLANT SPECIES (OFTEN SEDUM) PLANTED INTO A SHALLOW SUBSTRATE (TYPICALLY LESS THAN 100 MM) THAT IS LOW IN NUTRIENTS.
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ICB Waterproofing System
PL300 Protection Fleece
Terrace Supports
Paving
Extensive roofs are a lightweight, low-maintenance roof system, typically with succulents or other hardy plant species (often sedum) planted into a shallow substrate (typically less than 100 mm) that is low in nutrients.
TYPICAL WEIGHTS/LOADING (saturated)
- Extensive Green Roof
- Sedum with rootzone (wet weight) 40kg/m2
- Substrate: (based on minimum 60mm) 57kg/m2
- Drainage/reservoir layer 13kg/m2
- Waterproofing 1.7kg/m2
- 100mm thick insulation 6kg/m2
- Total 117.7kg/m2
VEGETATION :
- Plug Plants
- Sedum Blanket
- Wildflower Blanket
- Seeded Roof
- Low maintenance needs
- Lightweight system with no general access
- Ideal for efficient stormwater management
