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:[email protected]] *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
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