Extensive Green Roof Construction Details

For a conventional roof.

Extensive green roof construction details.

Unlike conventional earth covered structures garden roof assemblies are lightweight and can be installed on a wide variety of new and existing structures. Therefore it is unlikely that a green roof will lead to issues with insurance. Green roofs are not created equal. The hydrologic and thermal performance of six different extensive green roofs and reflective and non reflective roofs in a sub tropical climate simmons et.

Garden roof assembly hydrotech s garden roof assemblies combine the proven performance of our monolithic membrane 6125 roofing waterproofing with proven green technology. 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. 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. 8 to 20 per square foot.

Semi intensive green roofs require a deeper soil layer but the payoff is in the types of plantings that can be used. 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. We have vegetative roof details in pdf dwg autocad and autodesk revit rvt 2d and rfa 3d formats. Extensive green roofs are generally lower in weight and cost and require less plant maintenance.

A general characterization of the two types of green roofing systems follows. 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. Please contact us for support in determining which details are most pertinent to your individual project. Al 2008 urban ecosystems vol.

These systems are ideal for efficient stormwater. Generally there are two types of green roof systems. In addition to the mosses grasses and sedum of extensive roofs semi intensive plantings include herbs flowering plants taller grasses and small shrubs. Replacing the impervious surface of a conventional roof with.

Garden roof assembly american hydrotech inc. For both of these we need to follow specific green roof construction and maintenance procedures. Extensive green roofs. 15 to 50 per square foot.