In a hurricane region, we can't use glued supports. Caddy supports are for flat roofs. These are 30 degree roofs. I think I am going to use unistrut with two holes bored in it, washered screws and sealant, and a HDG conduit clamp.
On Mon, Sep 22, 2014 at 7:49 PM, August Goers <aug...@luminalt.com> wrote: > Hi Chris, > > > > There are a few common methods to run conduit along the roof surface. > > > > 1. Blocks made of Trex or another similar wood substitute with > conduit fastened with 1-hole straps. Trex is typically only glued to the > roof with roofing sealant (no penetrations) > > 2. A more professional support such as the Chem Link KnuckleHead: > http://www.chemlink.com/index.php/chemlink-products/knuckleheads or Erico > Caddy: http://www.erico.com/public/library/Fixing/LT1058.pdf - there are > other manufacturers as well > > 3. Quickmount classic conduit comp mount: > http://www.quickmountpv.com/downloads/datasheet/QMPV-datasheet-QMCC-Conduit-web.pdf > > > > For residential projects we typically use Trex. For commercial projects we > typically use the Erico Caddy. If the roof is really steep and the blocks > won’t stay put then we use the Quickmount product. > > > > For getting through the roof we typically use a standard pipe flashing or > a SolaDeck. > > > > Best, > > > > August > > > > Luminalt > > > > *From:* RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] *On > Behalf Of *Chris Mason > *Sent:* Monday, September 22, 2014 2:43 PM > *To:* RE-wrenches > *Subject:* [RE-wrenches] Conduit supports on sloped composite shingle > roofs > > > > I'm curious what methods people are using to mount, flash and stand-off > conduit from the comp. shingle roofs. We don't do a lot of shingle, mostly > metal and concrete, so we are less that familiar with the options. We used > SnapNRack flashed mounts for the rail system, but they need a rafter under > them and the conduit run will not be above rafters. > > As it is very hot here, I want to get some air between the conduit and the > roof. > > > > -- > > 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 > > _______________________________________________ > 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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