[RE-wrenches] PV and Roof Flammability

[Joel Davidson]

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_solar at yahoo.com>
To: "RE-wrenches" <re-wrenches at 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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