Penetration free standing seam clamps [RE-wrenches]

[Jason Fisher]

We've used S-5 clips on standing seams. I don't feel comfortable with them
unless they are on a fairly flat roof however. The steeper the roof, the
more the module's weight wants to pull the unit off the roof and pull the
pan away from the ridge. I also would make sure you stay well in from the
roof edges to ensure direct wind gets broken and diverted away (in theory)
before getting under the modules. They make a nice finish product but they
are expensive and take a good deal of time to install, especially if you use
a lot of them. Good luck on finding a PE who will stamp a plan to use them!

Jason Fisher

Aurora Energy
P.O.Box 3315
Annapolis, MD 21403

v/f: 410-268-3684
email: aurora at toad.net

-----Original Message-----
From: Nick Lucchese [mailto:nickl at sierrasolar.com]
Sent: Wednesday, May 28, 2003 7:54 PM
To: RE-wrenches at topica.com
Subject: Penetration free standing seam clamps [RE-wrenches]


--
Greetings Wrenches,
  I'm quoting an installation to take place this fall and the
owners/architects want to utilize the S-5 clamps available at
lmcurbs.com. This system is new to me and I'm wondering if they can
be adapted to accommodate the Unirac Solarmount rails. Is it possible
to run the rails parallel to the seams with this system? It seems
like a great system to avoid roof penetrations but also seems like a
lot of extra drag on the roofing panels. Anyone have any hands on
experience with this method?

   As always, thanks for any helpful insights any of you may have.
Have a great day.

  Nick A Lucchese
  Sierra Solar Systems/Planet Home
  nickl at sierrasolar.com


  PS. If anyone thought it was important enough to go out and buy a
torque driver to properly torque the Sunny Boy AC and DC terminals
ignore the manual. 35 in. lbs will break the screw, the only torque I
had success with was about 15 in.lbs. This misprint was confirmed by
SMA but I have not seen it mentioned yet on the list.

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