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2. Three types of green roofs
There are three coexisting processes for designing and building a green roof:
The roof-garden or intensive vegetation requires a minimum of 30 cm of soil, which allows traditional vegetation to be planted;
the vegetation layer, usually based on sedums (low-growing creeping perennials) or extensive vegetation that can make do with less than 10 cm of substrate;
an intermediate or semi-intensive vegetation system with a substrate thickness of between 10 and 30 cm, allowing greater plant diversity (figure 1 ).
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Three types of green roofs
Bibliography
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Reference texts
DTU 43.1 (NF P 84-204) – Waterproofing work on flat roofs with load-bearing masonry elements
DTU 43.3 (NF P 84-206) – Installation of ribbed steel sheet roofs with waterproof coating
DTU 43.4 (NF P 84-207) – Roofs made of load-bearing wood and wood-based panels with waterproofing.
DTU 20.12 (NF P 10-203) – Masonry structural work for waterproofed...
Organizations and reference sites
ADIVET (Association française des toitures et façades végétales) brings together the key players in the green roofing industry: component and system manufacturers, building and landscape contractors, trade associations, project managers and owners, training and research organizations, design offices... http://www.adivet.net
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