Green Roof Media Depth

This is reflected in the relatively short list of plants that are suitable for planting extensive green roofs.

Green roof media depth.

An ideal growing media can have the following properties. Sedum roofs with a natural drainage layer are designed to maximize water retention while sedum roofs with a synthetic drainage layer may focus more on minimizing weight. Sedum roofs are extensive green roofs that have a media depth of 3 8 inches. The shallow soil depth of extensive green roofs severely limits water storage capacity adding to what is already an extreme environment for the plants.

There are a few different types of green roofs available in order to best meet your growing needs learn more about them here. Green roof professional regional academic centers of excellence resources. Rowemedia depth influences sedum green roof establishment. There is of course more to tell about growing media.

Urban ecosyst 11 2008 pp. When designing a green roof there are several factors to take into consideration. Green roofs or living roofs have become popular over the years. Green roof growing media is an integral part of a functioning.

These generally require a 5 15cm 2 6in depth of growing medium that can consist mainly of lightweight inorganic materials such as perlite leca sand rockwool and crushed tiles or concrete. There are two variations for the system build up. This is because they provide ecological benefits aesthetic value and creative urban architecture. Extensive green roof media limited plant selection available.

Before the growing media is selected there are other layers of the green roof system which play major roles in the functionality of the roof. Types of green roofs. Webinars design standards green infrastructure store green roof energy calculator industry surveys journal of living architecture living architecture monitor. The most popular type of green roof sedum roofs are extensive green roofs that have a total depth of 3 to 8 inches.

For all combined rain events platforms at 2 slope with a 4 cm media depth had the greatest mean retention 87 although the difference from the other treatments was minimal. This includes but. Each type of plant will require different growing medium maintenance and local conditions to sustainable growth. To better understand the full use of a green roof system we have broken down the layers here.

Media depth 6 inches or less. The second study tested the influence of roof slope 2 and 6 5 and green roof media depth 2 5 4 0 and 6 0 cm on stormwater retention. Growing media of green roof should be designed properly to achieve the multiple benefits for longer periods.