[RE-wrenches] Standing Seam with direct S-5 attachment & Grounding

[North Texas Renewable Energy Inc]

Carl
just the suggestion that each metal roof panel be grounded is scary. There
are probably no panels in existence with manufacturer installed grounding
points potentially making any metal roof non-qualified for a PV installation
using S5 clamps.
This scenario was discussed a number of years ago on this or some other
site. While it may come across as absurd for any AHJ to make such a call, it
is entirely feasible.

Jim Duncan
North Texas Renewable Energy
486 W.N. Woody Road
Azle Texas 76020
NABCEP Certified Solar PV
Installer No.31310-57
TECL 27398
ntrei at 1scom.net
817.917.0527
www.ntrei.com



-----Original Message-----
From: re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org]On Behalf Of Carl
Adams
Sent: Monday, January 03, 2011 2:29 PM
To: RE-wrenches at lists.re-wrenches.org
Subject: [RE-wrenches] Standing Seam with direct S-5 attachment &
Grounding


Wrenches,

In reviewing the archive I've seen multiple threads on S5 to module
attachment.  I did not find any discussions on module grounding on
this type of installation or any requirements for grounding the metal
roof to which the modules are attached.

It has been suggested to me that each roof pan which has a module
attached should be grounded (perhaps under the ridge cap).

Can anyone offer suggested best practice or requirements regarding this?

With Regards
Carl Adams
SunRock Solar
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