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--></style></head><body lang="EN-US" link="blue" vlink="purple"><div class="WordSection1"><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Drake -</span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">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. </span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">You still need to ground your array, however. Were you planning on using weebs?</span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">-August</span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span></p><div><div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in"><p class="MsoNormal">
<b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> <a href="mailto:re-wrenches-bounces@lists.re-wrenches.org">re-wrenches-bounces@lists.re-wrenches.org</a> [mailto:<a href="mailto:re-wrenches-bounces@lists.re-wrenches.org">re-wrenches-bounces@lists.re-wrenches.org</a>] <b>On Behalf Of </b>Drake<br>
<b>Sent:</b> Friday, February 18, 2011 6:57 AM<br><b>To:</b> RE-wrenches<br><b>Subject:</b> [RE-wrenches] Seam clamps with or w/o rails</span></p></div></div><p class="MsoNormal"> </p><p class="MsoNormal">Hello Wrenches,<br>
<br>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.<br>
<br>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?<br><br>Thanks,<br><br>Drake <br><br></p><p><span style="color:blue">Drake Chamberlin <br>
Athens Electric<br>OH License 44810 <br>CO license 3773<br>NABCEP Certified PV</span></p></div></body></html>