definitionGreen roof belongs in the category of SUstainable Drainage Systems (SUDS) and aims at source controlling. A green roof or living roof is a roof of a building that is partially or completely covered with vegetation and a growing medium, planted over a waterproofing membrane. Primary objective is the reduction of storm-water runoff as part of a sustainable drainage system.
(Wikipedia, Greem roof, accessed on Sept. 2016)
Co-benefits and impactsAdditional benefits gained by the use of green roof are the increase of roof lifespan, the reduction of energy use, climate change mitigation by decreasing the CO2 emissions derived by energy consumption, lessening of the urban heat island effect, increase of biodiversity, improvement of air and water quality and decrease of stress of the people around the roof by providing a more aesthetically pleasing landscape (Natural Resources Defense Council, 2012). Another, important advantage of green roofs in urban areas is the impact on the micro-climate as green roofs provide a cooling effect in the summer and do not freeze entirely in the winter. They also can enhance the evapotranspiration processes in urban areas. Intensive roofs provide a higher amenity or ecological value for the flora and fauna in urban areas as extensive green roofs. The quality of the rainwater runoff from the roofs can be improved as well, because mechanical and biological effects are provided by the infiltration through the soil layer on the roofs ( Vojinovic Z., 2015).
Case studies (Show all)Sustainable urban drainage systems, Marbella
Green roofs, Vesterbro, Copenhagen
Rotterdam Water City 2035, Rotterdam
A public roof garden at the new National Archives
FRI indicators (Show all)Embodying flood risk in Building code
Multidisciplinary knowledge exchange (engineer, architect/urban planner, sociologist, economist, politician - city government, etc.)
Illustrations (Show all)rm_images/British_Horse_Society_Head_Quarters_and_Green_Roof.jpg
Last modified: Sept. 15, 2016, 11:59 a.m.