On the plus side, roofs under PV arrays receive less ultraviolet radiation.
On the negative side, some roofing shaded by PV arrays experience mold
growth.
----- Original Message -----
From: "Darryl Thayer" <daryl_so...@yahoo.com>
To: "RE-wrenches" <re-wrenches@lists.re-wrenches.org>
Sent: Thursday, September 23, 2010 6:39 PM
Subject: Re: [RE-wrenches] PV and Roof Flammability
Hi all
Of course there were some fires with thermal collectors where the wood and
shingles cought fire with inadaquite venting. No venting was the case.
But I have measured the temperature under PV when it was vented and the
roof was cooler under the array than elsewhere.
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