Guetegesichertes Dachsubstrat

Download quality criteria multi-layer extensive green roofs

substrates for multi-layer extensive green roofs (RAL-GZ 250/6-2) – Gütekriterien

Quality criteria – Substrates for green roofs

RAL-certified substrates for multi-layer extensive green roofs

These substrates usually consist mainly of mineral products with a certain amount of organic matter with defined properties. They consistently have to perform the functions of the vegetation support layer for near-natural low-maintenance forms of vegetation on top of buildings.

They are mostly produced without adding fertiliser.