Green Roofs Water Management

Excess water drips from the roof gradually so drains are not overwhelmed by a sudden deluge.

Green roofs water management.

Green roofs the key hydrological mechanism for interception storage and filtration of water. Green roofs are determinant for the hydrologic restoration in urban areas and an interesting alternative to more conventional practices. Green roofs can be effective in both urban and rural areas as a solution to managing rainwater drainage. Green roofs can remove carbon dioxide and produce oxygen.

Green roofs can improve stormwater management. Up to 75 of rainfall is absorbed by an extensive living roof and up to 90 is absorbed by an intensive green roof system. Stormwater management is a growing concern for numerous municipalities especially given the increase in flooding events. Grhc s virtual symposium will explore both design and policy measures that can improve a community s resilience while also providing a host of other benefits.

They provide a way for roofs to be converted into pervious areas and used beneficially rather than contributing to storm water management problems palla et al 2009 the overall aim of this chapter is to analyze and discuss the interactions. Green roofs sequester rain and carbon pollution as well. The plants and growing medium of a green roof absorb water that would otherwise become runoff and research indicates that peak flow rates are reduced by 50 percent to 90 percent compared to conventional roofs. Moreover the water that is.