The need for flood control by stormwater management on roofs and podiums is becoming more and more important as changing weather conditions such as severe local rain events can lead to an entire stormwater drainage system becoming overloaded. The ZinCo “Stormwater Management Roof“ build-up provides additional retention space and is able to retain a large proportion of stormwater in case of heavy rain events. The retained stormwater will only be released into the drainage system over a pre-defined period of time (e.g. 24 hours).
For this, a retention flow controller is required over the roof drains allowing to adjust the dam-up height and the discharge rate of the retained stormwater.

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