Proposal of a Conceptual Model as Tool for the Hydraulic Design of Vegetated Roof

Abstract:

Vegetated roof technique is becoming increasingly popular, particularly in highly urbanized areas, among the Sustainable Urban Drainage Systems (SUDS) for urban stormwater management. Several studies [1,2] have shown that vegetated roofs may significantly reducing the runoff volume and hydrograph peaks, as well as slowing the contribution to the urban drainage network.This study proposes a conceptual model to predict the hydraulic behavior of a full-scale physical model of a vegetated roof. The model idealizes the vegetated roof as a system consisting of three individual components in series. A mass balance equation is applied to each block, taking into account the specific physical phenomena occurring in each module [3]. The model is validated using dataset observed from the monitoring campaign carried out on the prototype of a full-scale vegetated roof.This study aims to provide quantitative information about the hydraulic performance of vegetated roofs, and identify the most sensitive parameters for describing the hydraulic behavior. The results show a good ability of the model to fit the measured data.

• Periodical: Applied Mechanics and Materials (Volumes 641-642)
• Pages: 326-331
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.641-642.326
• Online since: September 2014
• Authors: Marco Carbone*, Francesca Principato, Gennaro Nigro, Patrizia Piro
• Keywords: Design, Modeling, Stormwater, SUDS, SWMM, Vegetated Roofs

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