Intensive Green Roof Drainage System

The design of the different drainage layers allows for a portion of the stormwater to be retained above where the water is allowed to flow freely off of the roof.

Intensive green roof drainage system.

Intensive green roofs increases potential stormwater retention. Replacing the impervious surface of a conventional roof with. The main advantages of intensive green roofs are. Intensive green roofs are deeper with a minimum depth of 12 8 cm 5 0 inches and allows for more types of plants.

What s your design challenge. Having proper drainage on a green roof is a critical aspect of the system. Intensive green roof system. The most critical role of the drainage layer is to provide an adequate flow of water off the roof during and after rainfall.

Zurn is proud to introduce its green roofing drain product line specifically suited for the unique needs of a green roof installation. Xf drain always clear and never clogged. Intensive green roofs absorb the heat in summer and protect from cold and hail in the autumn and winter seasons. This multifunctional ce marked drainage system with high compressive strength protects the roof covering from water stagnation while at the same time in combination with the wsm 50 water reservoir panels storing water 44 l m for dry periods.

15 to 50 per square foot. 8 to 20 per square foot. A 2006 study by the university of michigan comparing costs of conventional and green roofs showed that on average installing a green roof costs about 22 00 sq. The new lightweight soils combined with specially developed water storage and drainage components all ensure that the modern green roof can replicate a traditional landscape at roof level at only a fraction of the weight and generally with a substantially shallower build up.

For a conventional roof. Heavier and more expensive than extensive green roofs intensive systems generally require higher maintenance. Driven by planning and local authority targets and the clients or end users requirements as well as stormwater retention amenity health and social cohesion goals. Green roof solutions offers many different drainage layer options depending on system goals regarding water retention.

Roof membrane protection an intensive green roof system protects the roof membrane from many conditions such as uv radiation heat cold and hail. Unlike conventional earth covered structures garden roof assemblies are lightweight and can be installed on a wide variety of new and existing structures.