Validation/upscaling
For the intensive CAM green roof at the University of Cagliari, the Best Practice has been validated but not physically upscaled.
The roof’s hydrological performance has been confirmed through field monitoring between 2016 and 2019, during which rainfall and outflow were continuously measured. These data were used to calibrate the EHSM ecohydrological model (Viola et al., 2017), demonstrating the system’s retention capacity and effectiveness in reducing runoff peaks.
Although the system has not been implemented at a larger scale, its potential for upscaling has been evaluated. Scenario analyses conducted by Cristiano et al. (2023), assessed the costs and benefits of widespread green roof deployment in urban areas worldwide, highlighting the contribution such installations could make to stormwater management, urban flood mitigation, and climate adaptation.
In summary, the practice is scientifically validated through monitoring and modelling, while large-scale implementation remains a potential future step supported by research-based assessments.
Cristiano, E., Urru, S., Farris, S., Ruggiu, D., Deidda, R., & Viola, F. (2020). Analysis of potential benefits on flood mitigation of a CAM green roof in Mediterranean urban areas. Building and Environment, 183, 107179.
Cristiano, E., Farris, S., Deidda, R., & Viola, F. (2023). How much green roofs and rainwater harvesting systems can contribute to urban flood mitigation? Urban Water Journal, 20(2), 140-157.
Viola, F., Hellies, M., & Deidda, R. (2017). Retention performance of green roofs in representative climates worldwide. Journal of Hydrology, 553, 763-772.
The roof’s hydrological performance has been confirmed through field monitoring between 2016 and 2019, during which rainfall and outflow were continuously measured. These data were used to calibrate the EHSM ecohydrological model (Viola et al., 2017), demonstrating the system’s retention capacity and effectiveness in reducing runoff peaks.
Although the system has not been implemented at a larger scale, its potential for upscaling has been evaluated. Scenario analyses conducted by Cristiano et al. (2023), assessed the costs and benefits of widespread green roof deployment in urban areas worldwide, highlighting the contribution such installations could make to stormwater management, urban flood mitigation, and climate adaptation.
In summary, the practice is scientifically validated through monitoring and modelling, while large-scale implementation remains a potential future step supported by research-based assessments.
Cristiano, E., Urru, S., Farris, S., Ruggiu, D., Deidda, R., & Viola, F. (2020). Analysis of potential benefits on flood mitigation of a CAM green roof in Mediterranean urban areas. Building and Environment, 183, 107179.
Cristiano, E., Farris, S., Deidda, R., & Viola, F. (2023). How much green roofs and rainwater harvesting systems can contribute to urban flood mitigation? Urban Water Journal, 20(2), 140-157.
Viola, F., Hellies, M., & Deidda, R. (2017). Retention performance of green roofs in representative climates worldwide. Journal of Hydrology, 553, 763-772.