Soil structure for green roof media.
Green roof soil thickness.
There are a number of things to consider when designing for a green roof.
It is common practice to use the term extensive to describe green roofs that are very thin and will only support hardy drought resistant vegetation such as sedums herbs and perennials.
One important item to design for is an increased structural load.
Green roofs or living roofs have become popular over the years.
The nominal thickness of a green roof is the approximate total height of the soil and drainage components that constitute the green roof system excluding the roof structure insulation waterproofing and plants.
This is because they provide ecological benefits aesthetic value and creative urban architecture.
This is especially true of intensive green roofs which can have soil that is two feet deep or more.
When designing a green roof there are several factors to take into consideration.
The green roof drainage layer thickness makes sure that nothing can go wrong below offering a solid and effective guard.