Worth knowing ...

What is a single-layer system?

This is the simplest system, in which one homogeneous layer performs drainage and filtering functions as well as acting as a vegetation layer; however, this system also means that the vegetation substrates used must be of exceptionally high quality.

The single-layer system enables large roof areas to be planted
in a short time and at low cost. Bauder single-layer substrates are the result of many years' experience of successful single-layer planting. They can deliver a superb planting result on a tight budget.