A Study of Green Roof Hydrologic Performance in the Cascadia Region

To evaluate the viability of green roofs for stormwater management and low impact development (LID) in the Cascadia region, Seattle Public Utilities (SPU) initiated the Green Roof Performance Study (GRPS). The GRPS research project, led by Taylor Associates, Inc., is currently collecting up to three...

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Bibliographic Details
Published in:	Low Impact Development for Urban Ecosystem and Habitat Protection Vol. 333; pp. 1 - 10
Main Authors:	Wachter, Heidi M, Marx, Kurt W, Berkompas, Bryan, Spencer, Bob, Beyerlein, Doug
Format:	Book Chapter Conference Proceeding
Language:	English
Published:	2009
Subjects:	INE, USA, Washington, Seattle Roofs Green buildings Washington Stormwater management
Online Access:	Get full text
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Summary:	To evaluate the viability of green roofs for stormwater management and low impact development (LID) in the Cascadia region, Seattle Public Utilities (SPU) initiated the Green Roof Performance Study (GRPS). The GRPS research project, led by Taylor Associates, Inc., is currently collecting up to three years of continuous hydrologic data at five different buildings with green roofs located throughout Seattle. The data set from each roof will include rainfall, supplemental irrigation, solar radiation, wind speed, air temperature, relative humidity, and runoff. These continuous hydrologic records will be used to calibrate a continuous hydrologic model, which in turn will provide a long term simulation of green roof performance based on a regional 40-year rainfall record. Such long-term monitoring and simulations of green roof performance have not yet been developed in literature or widely used as a basis for zoning, design criteria, or building code incentives. Preliminary results from the GRPS show that green roofs can reduce the volume and peak flow rates of stormwater runoff on an individual storm basis and over the course of a year.
Bibliography:	SourceType-Books-1 ObjectType-Book-1 content type line 25 ObjectType-Conference-2 SourceType-Conference Papers & Proceedings-2 content type line 12 SourceType-Conference Papers & Proceedings-1 ObjectType-Conference Paper-1
ISBN:	0784410097 9780784410097
DOI:	10.1061/41009(333)8