8 to 20 per square foot.
Intensive green roof cross section.
However because the soil is deeper intensive green roofs can accommodate trees shrubs bushes and vegetable gardens.
Liveroof has developed the following technical detail drawings for use in plans and to accompany specifications.
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Jul 4 2020 explore danica mihadavid s board green roof sections on pinterest.
It is not uncommon to see an intensive green roof used for recreational purposes.
Each of these layers has a specific function and is necessary for the success of the green roof.
Unlike conventional earth covered structures garden roof assemblies are lightweight and can be installed on a wide variety of new and existing structures.
Replacing the impervious surface of a conventional roof with.
Semi intensive green roofs include features of both types.
The growing medium depth for an extensive green roof system is typically 6 inches or less.
Garden roof assembly hydrotech s garden roof assemblies combine the proven performance of our monolithic membrane 6125 roofing waterproofing with proven green technology.
15 to 50 per square foot.
Intensive green roofs are generally heavier cost more and require more maintenance.
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.
Intensive green roof cross section not to scale source.
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 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.
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.
The incredible set up of this green roof supports flora ranging from wetland plants to small trees.
Cross section of green roofing layers.
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.