Extensive Green Roof Construction Details

In addition to the mosses grasses and sedum of extensive roofs semi intensive plantings include herbs flowering plants taller grasses and small shrubs.

Extensive green roof construction details.

Extensive green roof an extensive green roof system is characterized of its vegetation ranging from sedums to small grasses herbs and flowering herbaceous plants which need little maintenance and no permanent irrigation system the growing medium depth for an extensive green roof system is typically 6 inches or less. 15 to 50 per square foot. Generally there are two types of green roof systems. 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.

These systems are ideal for efficient stormwater. We have vegetative roof details in pdf dwg autocad and autodesk revit rvt 2d and rfa 3d formats. A general characterization of the two types of green roofing systems follows. Garden roof assembly american hydrotech inc.

They are differentiated on the basis of plant selection growing medium type and overall cost. The hydrologic and thermal performance of six different extensive green roofs and reflective and non reflective roofs in a sub tropical climate simmons et. Therefore it is unlikely that a green roof will lead to issues with insurance. For both of these we need to follow specific green roof construction and maintenance procedures.

Garden roof assembly hydrotech s garden roof assemblies combine the proven performance of our monolithic membrane 6125 roofing waterproofing with proven green technology. Please contact us for support in determining which details are most pertinent to your individual project. Al 2008 urban ecosystems vol. 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.

Extensive green roofs. 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. Semi intensive green roofs require a deeper soil layer but the payoff is in the types of plantings that can be used. 8 to 20 per square foot.

Replacing the impervious surface of a conventional roof with. 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. Extensive green roofs are generally lower in weight and cost and require less plant maintenance. For a conventional roof.