Green Roof Soil Types

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

Green roof soil types.

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. Consists of a thick layer of soil 50 200mm in which a variety of grasses herbs flowers and shrubs can grow. When designing a green roof there are several factors to take into consideration. Soil structure for green roof media.

Green roof growing media is an integral part of a functioning. This is because they provide ecological benefits aesthetic value and creative urban architecture. 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. There are three basic types of green roof.

Intensive thick extensive thin and semi extensive somewhere in between. These need to be accessible gardens for maintenance and can even be used as a recreation space. Semi intensive green roofs require a deeper soil layer but the payoff is in the types of plantings that can be used. Green roof types green roofs can serve a variety of different purposes and can support a wide variety of vegetative and plant life ranging from grasses to flowers to trees.

Each type of plant will require different growing medium maintenance and local conditions to sustainable growth. 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.