Quality criteria – Substrates for green roofs
RAL-certified substrates for multi-layer intensive green roofs
As a rule, these substrates consist mainly of mineral products with a certain amount of organic matter with defined properties. They must consistently perform the functions of the vegetation support layer for demanding forms of vegetation on top of buildings.
They are usually produced without adding fertiliser.
Download quality criteria multi-layer intensive green roofs
Quality criteria – Substrates for green roofs
RAL-certified substrates for multi-layer intensive green roofs
As a rule, these substrates consist mainly of mineral products with a certain amount of organic matter with defined properties. They must consistently perform the functions of the vegetation support layer for demanding forms of vegetation on top of buildings.
They are usually produced without adding fertiliser.
