I use a laser plumb, sit it on the ground over your marks and loft the marks to the top. It will be very accurate.
On Mon, Oct 17, 2016 at 7:49 PM, Benn Kilburn <b...@skyfireenergy.com> wrote: > Hello Wrenches, > Wondering if any of you have ever done anything similar to installing on a > vertical wall using a horizontal shared rail racking system, array being > about 32.8m (110') wide and 26.3m (86') tall > > The rails obviously have to be exactly perpendicular the entire length so > we are taking extra care that the first row (top row) is true and using > template spacers for each row down. Only problem is that the top of the > building is a concrete parapet and anything but level. > > Wondering if anyone has any good tips for getting that top row > level/square and keeping the rest of the rails perfectly perpendicular? > (keeping in mind the length...32.8m (110') > > Much Thanks, > > *Benn Kilburn * > CSA Certified Solar Photovoltaic Systems Electrician, SkyFire Energy Inc > 14515 – 121A Ave NW | Edmonton, AB | T5L 2T2 > P: 780-474-8992 | F: 888-405-5843 | www.skyfireenergy.com > [image: email] <b...@skyfireenergy.com> [image: facebook] > <https://www.facebook.com/SkyFireEnergy> [image: twitter] > <https://twitter.com/SkyFireEnergy> [image: linkedin] > <https://www.linkedin.com/company/283735?trk=tyah&trkInfo=tarId%3A1408655033432%2Ctas%3Askyfire%2Cidx%3A2-2-5> > > > [image: SkyFire Energy Logo_horizontal] > > *WE HAVE MOVED! Please note our new address above.* > > _______________________________________________ > 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 > > > -- Chris Mason NABCEP Certified Solar PV Installer™ Solar Design Engineer Generac Generators Industrial technician www.cometsolar.com <http://www.cometenergysystems.com> 264.235.5670 869.662.5670 Skype: netconcepts
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