Membrane 5 1-layer inverted roof system for extensive green roof on concrete insulated with XPS

1-layer SBS-modified bitumen built-in membrane torch applied on concrete substrate insulated with XPS for green roofs:
1. Substrate: concrete
2. Primer
3. Membrane 5
4. Fonda Geoplex, for drainage
5. Insulation:
XPS
6. Fonda Geoplex, for drainage
7. Extensive roof