Green Roofs Towards Circular and Resilient Cities

Cost-Effectiveness of Green Roofs

Life-cycle assessment was used to evaluate the widespread installation of green roofs in a typical urban mixed-use neighborhood. Market prices of materials, construction, energy conservation, storm-water management, and greenhouse gas GHG emission reductions were used to evaluate private and social costs and benefits. Results suggest green roofs are currently not cost effective on a private cos...

Resilient, Green… and Healthy

The environmental health field has been swept by major changes in recent years. One was the rediscovery of the " built environment " as a key determinant of human health. Community design—including land use and transportation decisions, but extending to such arenas as energy, housing, and food—affects outcomes as diverse as cardiovascular health, respiratory heath, cancer, injury risk, and soci...

Carbon sequestration potential of extensive green roofs.

Two studies were conducted with the objective of quantifying the carbon storage potential of extensive green roofs. The first was performed on eight roofs in Michigan and four roofs in Maryland, ranging from 1 to 6 years in age. All 12 green roofs were composed primarily of Sedum species, and substrate depths ranged from 2.5 to 12.7 cm. Aboveground plant material was harvested in the fall of 20...

Growing Green Roofs, City by City

lichens on extensive green roofs : evapotranspiration , Cladonia

Green roofs are constructed ecosystems that provide ecosystem services in urban environments. Shallow substrate green roofs subject the vegetation layer to desiccation and other environmental extremes, so researchers have evaluated a variety of stress-tolerant vegetation types for green roof applications. Lichens can be found in most terrestrial habitats. They are able to survive extremely har...