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4. Load-bearing elements and waterproofing
Green roofs can be installed on various types of load-bearing elements: concrete, aerated concrete, ribbed sheet steel, wood and wood-based panels. Whatever the load-bearing element, the loads to be taken into account for its dimensioning are calculated according to the weight of the vegetation complex and the MEC (maximum water capacity) on the structure (§ 4.5 ). Waterproofing must be of the anti-root type, or supplemented by an anti-root device.
4.1 Framing of load-bearing elements
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Load-bearing elements and waterproofing
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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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