Jason,In my experience with a roof like that there were purlins running horizontal to the trusses, so spacing L-feet to miss the ribs was not an issue. Unless you have visually confirmed the truss location it might be worth a more detailed look to see if there are purlins you can attach to. This might be an option for waterproofing the penetrations... EternaBond DoubleStick benn
DayStar Renewable Energy Inc. benn@daystarsolar.ca780-906-7807 HAVE A SUNNY DAY From: j...@asis.com Date: Mon, 14 Feb 2011 14:34:11 -0700 To: re-wrenches@lists.re-wrenches.org Subject: Re: [RE-wrenches] Metal Roof Attachment HI Jason, I would use the direct power and water version. I've used both and I don't like the Snapnrack. While its tall enough its not long enough for my taste. Like a foot thats too short, its hard to anchor without tiping. Also I would advise some sort of caulk or soft sealing spacer between the top of the rib and the base of the roof bracket for water sealing. jay peltz power On Feb 14, 2011, at 2:06 PM, Jason Szumlanski wrote:I’ve done PV on lots of standing seam and 5V metal roofs, but not one like in this picture: https://docs.google.com/leaf?id=0B4VSfTqIfgFmYzQ4MjFhODktYzg4Yy00OTFlLWFkZWItMTg3MWQ1NTU2ZDBm&hl=en&authkey=CMK9hLsE I think it is called an R-Panel. Trusses fall directly below the tall ribs. I was thinking of something like a SnapNRack Corrugated Roof Bracket that I mentioned before on the list, but I’ve never used this product. Any other ideas? Jason SzumlanskiFafco Solar _______________________________________________ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
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