Draft:Blue Green Roof
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The Blue Green Roof (BGR) is an element of sustainable architecture that integrates the vegetation typical of green roofs with a sophisticated rainwater management system.[1]
This technology uses water as a means of improving environmental thermoregulation in urban areas, which are often subject to rapid runoff of rainwater. The distinctive feature of BGRs is their ability to collect, store, and reuse rainwater, helping to prevent damage from heavy rainfall and providing a water reserve during periods of drought.[1]
Stratigraphy
[edit]
The Blue Green Roof looks like a green roof or a hanging garden. However, a distinctive feature is the cavity underneath, designed to collect and retain rainwater. This storage capacity not only prevents the waste of water resources but also contributes to water management during periods of drought or heavy rainfall, providing a sustainable and long-term solution for water management in urban contexts.
A BGR has a “primary basin” that collects and stores every drop of rain, retaining all the water. This system mitigates storm damage and serves as a water reserve during times of water scarcity.
The collected water is then transferred to a “secondary system” for more efficient use, often for irrigation, surpassing the efficiency of traditional methods.
Water conservation
[edit]Blue Green Roofs (BGR) are designed to collect and store rainwater, reducing dependence on water supplied by the city network and conserving a precious resource that is often wasted in urban areas.
Prevention of damage caused by heavy rainfall
[edit]BGRs help mitigate the risks of urban flooding and related damage by absorbing and retaining water during heavy rainfall events, thereby limiting surface runoff.
Water reserve during periods of drought
[edit]During periods of water scarcity, BGRs provide a critical alternative source, conserving water that can be used to support vegetation and other uses.
Reduction in costs associated with water supply
[edit]Through the collection and efficient use of rainwater, BGRs can significantly reduce water consumption costs, especially in relation to the irrigation of landscapes and green spaces.
Mitigation of the urban microclimate
[edit]BGRs help moderate extreme temperatures in urban areas thanks to their ability to retain water and support vegetation, which provides shade and cooling through evapotranspiration.
Contribution to biodiversity and air quality
[edit]By hosting a variety of plants, BGRs improve urban biodiversity and contribute to better air quality by providing habitats for various species and absorbing air pollutants.
The digital IoT Blue Green Roof represents the cutting edge in sustainable rainwater management. Using integrated humidity and temperature sensors, this intelligent system constantly monitors the water saturation of the plant substrate.
By actively connecting to weather forecasting services, the system predicts imminent rainfall events and their intensity. Based on this information, it determines whether it is possible to retain all the predicted rainfall or whether it is necessary to discharge a certain amount of water from the primary basin in advance, thus ensuring optimal water resource management and preventing potential overloads.
Notes
[edit]- ^ "EU-level technical guidance on adapting buildings to climate change".
- ^ "OFFICINA* toolbox 05 by Anteferma Edizioni - Issuu". issuu.com. 2022-05-15.
- ^ "MD Journal [11] 2021 DESIGN FOR SMART CITIES by md material design - Issuu". issuu.com. 2021-07-31.
- ^ Luca Confalonieri (2023-02-21). "GBC Italia presenta il primo Position Paper per la gestione efficiente delle risorse idriche". GBC Italia (in Italian).