Green Roof Soil Types

This is because they provide ecological benefits aesthetic value and creative urban architecture.

Green roof soil types.

Semi intensive green roofs require a deeper soil layer but the payoff is in the types of plantings that can be used. Green roofs or living roofs have become popular over the years. 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.

There are two types of green roof. Soil structure for green roof media. Green roof growing media is an integral part of a functioning. Consists of a thick layer of soil 50 200mm in which a variety of grasses herbs flowers and shrubs can grow.

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. Each type of plant will require different growing medium maintenance and local conditions to sustainable growth. In addition to the mosses grasses and sedum of extensive roofs semi intensive plantings include herbs flowering plants taller grasses and small shrubs. Intensive thick extensive thin and semi extensive somewhere in between.

Disadvantages are the lack of nutrients and potential to become eroded by windy conditions or flooding. 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.