Green Roof Soil Types

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

Green roof soil types.

Each type of plant will require different growing medium maintenance and local conditions to sustainable growth. Soil structure for green roof media. These need to be accessible gardens for maintenance and can even be used as a recreation space. There are three basic types of green roof.

Green roof growing media is an integral part of a functioning. The main advantage to this type of soil on a green roof is its light weight and ease of handling as it comes pre packaged in bales from a manufacturer. Intensive thick extensive thin and semi extensive somewhere in between. This is because they provide ecological benefits aesthetic value and creative urban architecture.

Semi intensive green roofs require a deeper soil layer but the payoff is in the types of plantings that can be used. 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. Recently it was thought that the best soils for green roofs were engineered soils or pasteurized peat based soilless media with little emphasis on adapting it to local needs. When designing a green roof there are several factors to take into consideration.

Green roofs or living roofs have become popular over the years. There are two types of green roof.