1. History and challenges
Rooftop vegetation is not a recent invention, having already existed in the 7th century B.C., as witnessed by the famous Hanging Gardens of Babylon (or Gardens of Semiramis), one of the Seven Wonders of the World.
Green roofs have been used for centuries in Scandinavian countries to protect dwellings from the cold and heat, protect roof waterproofing and create a certain osmosis between landscape and architecture. Some traditional houses, known as "Norwegian chalets", even have double-sloped roofs supporting a thick layer of vegetation.
In other traditional societies, whether in Turkey, Mongolia or among certain Amerindian peoples, the desired or accepted presence of plants on roofs is normal, as they help to cool interior spaces in summer.
In twentieth-century architecture, the garden terrace has gradually become...
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History and challenges
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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