Green Roofs Water Management

Green roofs can improve stormwater management.

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. Somewhere between 40 and 80 percent of the total volume of rain that falls on green roofs can be retained. 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.

Stormwater management is a growing concern for numerous municipalities especially given the increase in flooding events. Green roofs sequester rain and carbon pollution as well. Moreover the water that is. Green roofs can be effective in both urban and rural areas as a solution to managing rainwater drainage.

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. Green roofs can remove carbon dioxide and produce oxygen. Stormwater management is the. Excess water drips from the roof gradually so drains are not overwhelmed by a sudden deluge.