Re: [RE-wrenches] Racking for Steep Roofs

[Allan Sindelar]

Garrison, I'm here in a campground in the Emerald Triangle with Jeff Spies, who works for Quick Mount PV, and so I read him your message. He suggested that you take the engineering specs from UniRac and IronRidge to the AHJ, showing her pullout and shear capacities and calculate both for your site, including snow and wind loads. The maximum applied load should be less than the published working load rating. If the AHJ doesn't accept this approach, the next step is to get a structural engineer to review the same and wet-stamp the result. This legitimately gets around the manufacturers' certification issue on an individual case basis. Allan Allan Sindelar al...@sindelarsolar.com NABCEP Certified PV Installation Professional NABCEP Certified Technical Sales Professional New Mexico EE98J Journeyman Electrician Founder (Retired), Positive Energy, Inc. 505 780-2738 cell   On 10/15/2015 1:50 PM, Garrison Riegel wrote: Thanks for the responses.    I called UniRac and IronRidge who both confirmed they max out at 45°.  UniRac said anything over 45° is considered a wall and requires different testing and certification.  They said the primary concern is the end clamp which holds the module by friction only.  Mid clamps should hold no problem.  They suggested getting an engineer to stamp a custom bolted end clamp solution and we should be good.       I’ve been looking for a good excuse to try Snap n Rack…   Thanks, Garrison          From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Aram Alexander Sent: Wednesday, October 14, 2015 7:39 PM To: RE-wrenches <re-wrenches@lists.re-wrenches.org> Subject: Re: [RE-wrenches] Racking for Steep Roofs   Pro solar will work just fine. Aram  On Oct 14, 2015, at 2:56 PM, Jerry Shafer <jerrysgarag...@gmail.com> wrote: I would suggest calling unirac as it may be a software issue that uou are having but they will confirm eitherway Jerry On Oct 14, 2015 9:25 AM, "Garrison Riegel" <garri...@solarserviceinc.com> wrote: Wrenches,   Can anyone recommend a flush mount racking system for really steep roofs?  I have two projects coming up on 15/12 (~51°) and none of the usual manufacturers we use for flush mounts (IronRidge XR, Unirac SolarMount, Schletter Solo, DPW Powerrail) can handle this apparently…at least according to their design tools and manuals.   Any advice would be much appreciated.   Thanks, Garrison   Garrison Riegel PV Operations Manager | Solar Service Inc [p] 847-677-0950 | garri...@solarserviceinc.com   NABCEP Certified PV Installation Professional™         _______________________________________________ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org _______________________________________________ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org _______________________________________________ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org

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