Extensive Green Roof Construction Details

With only a few inches of soil extensive green roofs typically support plants that are tolerant of high heat drought wind and frost like sedums succulents and.

Extensive green roof construction details.

We have vegetative roof details in pdf dwg autocad and autodesk revit rvt 2d and rfa 3d formats. Unlike conventional earth covered structures garden roof assemblies are lightweight and can be installed on a wide variety of new and existing structures. Garden roof assembly american hydrotech inc. In addition to the mosses grasses and sedum of extensive roofs semi intensive plantings include herbs flowering plants taller grasses and small shrubs.

The government undertook fire tests for green roofs and walls and concluded that the current guidance provided by the green roof code was adequate and extensive green roofs installed following the code would not be deemed a fire risk. Replacing the impervious surface of a conventional roof with. They are differentiated on the basis of plant selection growing medium type and overall cost. Green roofs are not created equal.

Therefore it is unlikely that a green roof will lead to issues with insurance. Garden roof assembly hydrotech s garden roof assemblies combine the proven performance of our monolithic membrane 6125 roofing waterproofing with proven green technology. The hydrologic and thermal performance of six different extensive green roofs and reflective and non reflective roofs in a sub tropical climate simmons et. 8 to 20 per square foot.

This system requires some maintenance from time to time these green roof systems lie between the extensive and the intensive and usually include a mix of plant types. Please contact us for support in determining which details are most pertinent to your individual project. Semi intensive green roofs require a deeper soil layer but the payoff is in the types of plantings that can be used. Generally there are two types of green roof systems.

Al 2008 urban ecosystems vol. Extensive green roofs. Extensive green roofs are generally lower in weight and cost and require less plant maintenance. For a conventional roof.

A general characterization of the two types of green roofing systems follows. These systems are ideal for efficient stormwater. 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. As a roof type that requires frequent maintenance intensive systems can be thought of as gardens on a roof in contrast with an extensive green roof there are almost unlimited possibilities.