Optigrün Green Roof RETENTION ROOF: THROTTLE EXTENSIVE AND SIMPLY INTENSIVE

Optigrün international AG

Description

Better microclimate, rainwater retention and runoff delay for green roofs

A green roof ensures a better microclimate. Our DROSSEL retention roof system also keeps water in cities and helps to store it there. So the city becomes a sponge. Water is stored when it is available in abundance so that it is available when it is urgently needed.

And that is exactly what is meant by the sponge city concept. Here, green roofs and rainwater management work together effectively and sustainably. They are an important instrument on the way to becoming the sponge city of the future. In short, they are indispensable in the fight against the consequences of climate change.

More Over

Especially for extensive green roofs, where special structural specifications exist, the Drossel retention roof system is recommended. The water retention box (WRB) is used as a retention and drainage element. The WRB element can be used flexibly. Depending on the requirements, it can be used as a permanent water reservoir or/and as a temporary retention space to delay the runoff.

The Drossel retention roof for extensive and simply intensive green roofs is economical and sustainable. It ensures efficient rainwater retention and runoff delay. The WRB 80F has an integrated permanent water tank of 6 l/m2, which is independent of the throttle. The WRB 80F can be stacked inside each other and is therefore particularly inexpensive to transport.

The Drossel retention roof is an intervention reduction measure within the framework of the intervention compensation regulation and meets the requirements of the FLL green roof guidelines.

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Technical Information

Weight* from 100 kg/m² or 1.0 kN/m²
System heightfrom 14 cm
Roof pitch 0°
Vegetation form Sedum herb grasses, possibly woody plants Peak
runoff coefficient** Object-related adjustable
retention volume 75 l/m² (WRB 80F)
Total water storage 95-150 l/m²

*A temporary water backlog is not taken into account in the weight specifications mentioned in accordance with the requirements of the FLL green roof guidelines.

**According to the current FLL green roof guidelines.

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