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What's Happening from Environmental Building News
October 1, 2008
Green Roof Study Finds Big Variation in Stormwater Retention
A recent study of several green roof types monitored their temperature and stormwater retention performance and found that while all were capable of significant thermal moderation, some held water well while others were barely better than conventional roofs at preventing or slowing runoff. Mark Simmons, Ph.D., a researcher at the University of Texas at Austin and the lead author of a paper on the study in Urban Ecosystems, told EBN that these benefits had until now not been tested experimentally for tropical or subtropical climates, where high temperatures and large rainfall events make those advantages particularly valuable. A green roof effective in such a climate would presumably also perform well in more temperate zones....
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