Extensive Green Roof Texture
Their growing media are typically less than 6.
Extensive green roof texture. By contrast extensive green roofs are much shallower. It is good to know that the development of vegetation and the form of the green roof will be highly influenced by local weather conditions. Extensive green roofs have a growing depth of 3 to 6 inches and are typ ically lighter in weight with a saturated weight of 15 to 30 pounds per square foot. It will offer a great biodiversity and thanks to it the extensive green roof will be more colourful and will have a richer texture from spring to late autumn.
The hydrologic and thermal performance of six different extensive green roofs and reflective and non reflective roofs in a sub tropical climate simmons et. This fairly shallow growing medium sup ports a limited plant palette often kept to an evaluation study of plants for use on green roofs. Garden roof assembly american hydrotech inc. Green roofs are not created equal.
An extensive green roof is generally defined as a roof with six inches or less of growing medium that is designed to maximize environmental biological and aesthetic services with a bare minimum of resources required for installation and for maintenance. We strive to be the industry leader in developing through breeding careful selection and extensive testing plants specifically suited to harsh green roof conditions. Extensive green roofs are the simplest to install and are very often added to existing roofs. There are two types of green roof.
Intensive roofs which are thicker with a minimum depth of 12 8 cm 5 1 16 in and can support a wider variety of plants but are heavier and require more maintenance and extensive roofs which are shallow ranging in depth from 2 cm 13 16 in to 12 7 cm 5 in lighter than intensive green roofs and require minimal maintenance. We have vegetative roof details in pdf dwg autocad and autodesk revit rvt 2d and rfa 3d formats. A variation of the extensive green roof is called semi extensive. Al 2008 urban ecosystems vol.
Extensive green roofs are generally made up of a very thin layer of soil or other planting medium with shallow root plants like sedum mosses and grasses. With dozens of introductions we offer a unique palette of exclusive plants which are vigorous hardy and consistent in color texture and performance. They are lighter weight systems that provide primarily ecological and economic benefits. Depending on the source you look at these roofs may add 10 to 35 pounds per square foot to a roof s load.