[RE-wrenches] Seam clamps with or w/o rails

[August Goers]

Drake -



We've done lots of systems both ways - using rails such as Unirac solarmount
or ProSolar is definately more forgiving compared to mounting directly on
the seams. The adjustability of the Unirac L-foot is particularly nice. If
you mount directly to the seams you need to mount in landscape orientation
and alignment can be tricky.



You still need to ground your array, however. Were you planning on using
weebs?



-August



*From:* re-wrenches-bounces at lists.re-wrenches.org [mailto:
re-wrenches-bounces at lists.re-wrenches.org] *On Behalf Of *Drake
*Sent:* Friday, February 18, 2011 6:57 AM
*To:* RE-wrenches
*Subject:* [RE-wrenches] Seam clamps with or w/o rails



Hello Wrenches,

We have a system to install on a roof with standing seams, and are planning
to use S-5 clamps.  The current plan is to use Solarmount rails. This seemed
to be a good solution for grounding, rather than putting lugs on every
module, and also would allow better air circulation under the array.

Would you agree with this concept, or would you recommend connecting the
modules straight to the seam clamps?  Are there any down sides to using the
rails with the S-5s?

Thanks,

Drake

Drake Chamberlin
Athens Electric
OH License 44810
CO license 3773
NABCEP Certified PV
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