Economy Roof System Solution

TECHNICAL DATA

Weight *: 90-140 kg/m² or 0.9-1.4 KN/m²

Build-up depth: 80 mm

Roof pitch: 0 – 5° (0 – 9 %)

Vegetation form: sedum-herbs-grasses

Water retention: 50 – 60 %

Discharge coefficient **: C=0.47 - 0.6

Water storage  approx.: 25 l/m²

Discharge yield ***: 141-180 l/s x ha

* Depending on the load capacity of the substructure, Optigreen "High Density (HD)" or "Low Density (LD)" substrates can be used. Weight specifications refer to saturated conditions; dry weight is approximately 60 - 70 % of the saturated weight.

** Depends on slope and system solution. Determined at 0° according to FLL guidelines.

*** Determined according to FLL discharge coefficient measurements using a 15-minute reference rainfall r(15) = 300 l/s x ha.