Intensive Green Roof Cross Section

For a conventional roof.

Intensive green roof cross section. 8 to 20 per square foot. Intensive green roof cross section not to scale source. Unlike conventional earth covered structures garden roof assemblies are lightweight and can be installed on a wide variety of new and existing structures. The incredible set up of this green roof supports flora ranging from wetland plants to small trees.

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. 15 to 50 per square foot. Replacing the impervious surface of a conventional roof with. Design components figure 1 extensive green roof cross section not to scale waterproof membrane the waterproof membrane is the most important factor for the long term success of the green roof because it protects the roof sheathing from climatic conditions including.

Each of these layers has a specific function and is necessary for the success of the green roof. Intensive green roofs require the deepest soil and have the greatest impact on the structural design but they also accommodate all types of plantings including large shrubs and trees. The intensive portion features a 2 10 inch drainage layer and a 2 5 to 8 inch growing media layer exhibits diverse examples of habitats. It is not uncommon to see an intensive green roof used for recreational purposes.

Cross section of green roofing layers. The appropriate depth of any green roof depends on the roof structure the plants chosen annual rainfall and stormwater performance requirements. 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. Intensive systems allow the designer to create a park like setting so they are the best option for roof gardens that will be occupied.

The growing medium depth for an extensive green roof system is typically 6 inches or less. Liveroof has developed the following technical detail drawings for use in plans and to accompany specifications. However because the soil is deeper intensive green roofs can accommodate trees shrubs bushes and vegetable gardens. See more ideas about green roof roof roof garden.

Jul 4 2020 explore danica mihadavid s board green roof sections on pinterest. Intensive green roofs are generally heavier cost more and require more maintenance.