Extensive green roof system / semi-intensive / intensive / for flat roofs
STORMWATER MANAGEMENT ROOF ZinCo GmbH

Characteristics

  • Type:

    extensive, semi-intensive, intensive

  • Applications:

    for flat roofs

Description

Changing weather conditions (e.g. extreme local rain events) can result in an entire public sewerage system being overwhelmed. One of the great benefits of a green roof is that it detains water and allows for the time-delayed run off of stormwater (water retention).

Water storage in a standard green roof build-up cannot be increased arbitrarily because more water could result in changes to the vegetation used.

However, this is possible with a stormwater management roof which offers this option in addition to all the other features of a green roof build-up.

Features of a stormwater management roof

Up to approx. 80 l/m² of precipitation can be retained with a stormwater management roof and then released into the sewerage system over a pre-defined period (between 24 hours and a few days). The space required for the increased precipitation is created by a grid spacer situated beneath the actual green roof build-up.

Meanwhile, the elements (water storage for the plants, air-water household in the root area etc.) that are of vital importance for the proper functioning of the green roof are all preserved.

Virtually all types of roof utilisation are possible above the stormwater retention space, once structurally permitted, from an extensive green roof to a roof garden with pathways and driveways.

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