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

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. T...

Full description

Saved in:
Bibliographic Details
Published in:Sustainability 2018-08, Vol.10 (9), p.3105
Main Authors: Andrés-Doménech, Ignacio, Perales-Momparler, Sara, Morales-Torres, Adrián, Escuder-Bueno, Ignacio
Format: Article
Language:English
Subjects:
Architectural design
Buildings
Climate
Data processing
Drainage management
Drainage systems
Evapotranspiration
Green buildings
Green development
Green roofs
Hydrologic data
Hydrologic models
Hydrology
Rainfall
Roofing
Roofs
Runoff coefficient
Sustainability
Sustainable design
Urban drainage
Urban runoff
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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.
ISSN:2071-1050
2071-1050
DOI:10.3390/su10093105