LIGHTWEIGHT ROOF
SOLUTION 1: 0-5°
Characteristics
- The lightest green roof solution available.
- Erosion-proof system solution; can only be used with a secured waterproofing system. Not suitable for inverted roofs.
- Can be used on roofs with zero degree drainage falls, subject to certain limitations.
- Increased maintenance requirements and installation costs in comparison to an Economy Roof solution.
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Technical Data
Weight * 58 kg/m² or 0.58 KN/m² * Build-up depth 50 mm Roof pitch 0 - 5° (0 - 9 %) Vegetation form sedum Water retention 40 - 50 % Discharge coefficient ** C=0.63 - 0.65 Water storage approx. 18 l/m² Ecological value 
Maintenance costs 
Cost factor ** 
* Weight specifications refer to saturated conditions; dry weight is approximately 50 - 60 % of the saturated weight. ** Depends on slope and system solution. Determined at 0° according to FLL guidelines. -
Brief Description
OPTIGREEN VEGETATION MAT
- Pre-cultivated sedum mat for the rapid establishment of vegetation in order to prevent wind erosion, with decomposable carrier
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Optigreen Low Density Substrate L 30 litres/m²
- Specially formulated substrate for single layer extensive roofs featuring low weight but high water storage capacity
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OPTIGREEN INSPECTION CHAMBER LD
- Simple control of roof drainage outlets
- Mounted onto the Optigreen Drainage Board Type FKD 25
Optigreen Drainage and Water Storage Element FKD 25 (25 mm)
- Rapid discharge of surplus water
- Prevents accumulation of water on non-pitched roofs and on large drainage runs
- Good water storage capacity
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OPTIGREEN PROTECTION AND STORAGE FLEECE RMS 300
- Protects the roof membrane against damage and stores water.
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