[Greenbuilding] Toxic Materials in Roof Runoff

candtcampbell at juno.com candtcampbell at juno.com
Mon Aug 11 15:03:16 MDT 2014

It doesn't look like they came to any conclusion regarding roofing material recommendations. But since they collected samples in stainless steel pots, I'm inclined to think stainless steel roofing is the least toxic choice. Anyone agree or disagree?


Message: 1
Date: Mon, 11 Aug 2014 09:17:30 -0700
From: "Erin Rasmussen" <erin at trmiles.com>
To: "'Green Building'" <greenbuilding at lists.bioenergylists.org>
Subject: [Greenbuilding] Toxic Materials in Roof Runoff
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Washington State Department of Ecology has been doing a pilot study on the
types of toxins that can enter stormwater systems from different types of
roofing materials.  Copper and Zinc are studied pretty carefully, since we
know that the metals contribute to greater mortality in the endangered and
economically important fish in the Pacific NW.

There's a link to it from the roofing pollution topic page




Erin Rasmussen


TR Miles Technical Consultants Inc.   http://www.trmiles.com/

and BioEnergy Discussion Lists   http://www.bioenergylists.org/

erin at trmiles.com

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