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permaculture - Re: [permaculture] guesstimating rainwater runoff on green roof

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  • From: Paul Cereghino <paul.cereghino@comcast.net>
  • To: permaculture <permaculture@lists.ibiblio.org>
  • Subject: Re: [permaculture] guesstimating rainwater runoff on green roof
  • Date: Fri, 14 Dec 2007 20:46:58 -0800


Does anyone have any reference or estimate of runoff % on green roofs?


Our local eco-building guild is working toward monitoring several projects... they put their proposed methods online and they dig in pretty deep... looking at change of discharge per rainfall event between green roof and control.

You could also talk more in terms of 'potential storage' and compare 'field capacity' soil to dry soil for the volume of the roof.

http://www.ecobuilding.org/chapters/central_puget_sound/green_roof_project/monitoring




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