Hydrological Performance of Green Roofs at Building and City Scales under Mediterranean Conditions

Ignacio Andrés-Doménech, Sara Perales-Momparler, Adrián Morales-Torres and Ignacio Escuder-Bueno
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Ignacio Andrés-Doménech: Instituto Universitario de Investigación de Ingeniería del Agua y Medio Ambiente, Universitat Politècnica de València, Camí de Vera s/n, 46022 Valencia, Spain
Sara Perales-Momparler: Green Blue Management, Avda. del Puerto 180 1B, 46023 Valencia, Spain
Adrián Morales-Torres: iPresas, Avda, del Puerto 180 1B, 46023 Valencia, Spain
Ignacio Escuder-Bueno: Instituto Universitario de Investigación de Ingeniería del Agua y Medio Ambiente, Universitat Politècnica de València, Camí de Vera s/n, 46022 Valencia, Spain

Sustainability, 2018, vol. 10, issue 9, 1-15

Abstract: Green roofs are one specific type of sustainable urban drainage system (SUDS); they aim to manage runoff at the source by storing water in its different layers, delaying the hydrological response, and restoring evapotranspiration. Evidence of their performance in the Mediterranean is still scarce. The main objective of this paper is to analyse the hydrological performance of green roofs at building and city scales under Mediterranean conditions. A green roof and a conventional roof were monitored over one year in Benaguasil (Valencia, Spain). Rainfall and flow data were recorded and analysed. Hydrological models were calibrated and validated at the building scale to analyse the hydrological long-term efficiency of the green roof and compare it against that obtained for the conventional roof. Results show that green roofs can provide good hydrological performances, even in dry climates such as the Mediterranean. In addition, their influence at the city scale is also significant, given the average runoff coefficient reduction obtained.

Keywords: sustainable urban drainage systems (SUDS); green roof; hydrological efficiency; runoff reduction; city scale (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2018
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (7)

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Persistent link: https://EconPapers.repec.org/RePEc:gam:jsusta:v:10:y:2018:i:9:p:3105-:d:166833

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