[RE-wrenches] Metal Roof Attachment
benn kilburn
benn at daystarsolar.ca
Mon Feb 14 16:03:56 PST 2011
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 at daystarsolar.ca780-906-7807 HAVE A SUNNY DAY
From: jay at asis.com
Date: Mon, 14 Feb 2011 14:34:11 -0700
To: re-wrenches at 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
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