[RE-wrenches] Metal roof support flashing

[Andrew Truitt]

Has anyone ever heard of a standing seam roof actually being damaged or
coming loose from a PV array mounted with S-5! clips?  We have just sold a
few jobs on 2:12, galvalume, s.s. roofs that are 20-30 years old and I just
had a structural P.E. look at them today and his feeling is that, even
though he can't tell how the frequent or stout the connections are, he
thinks the S-5! clips should be fine.  He is going to run some calculations
but thinks that we should even be able to tilt the modules to 25 degrees.
The basic wind speed is 90 mph.

Are worries about standing seam roof connections unfounded or is it time for
me to get a new P.E.?



Andrew Truitt
Standard Solar Inc.





On Mon, Jun 15, 2009 at 8:38 PM, William Miller <william at millersolar.com>wrote:

>  Boots.
>
>
> At 05:14 PM 6/15/2009, you wrote:
>
>
> What do you do on metal roofs in these situations?
>
>
> _______________________________________________
> List sponsored by Home Power magazine
>
> List Address: RE-wrenches at 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
>
>
>


-- 
"Don't get me wrong: I love nuclear energy! It's just that I prefer fusion
to fission. And it just so happens that there's an enormous fusion reactor
safely banked a few million miles from us. It delivers more than we could
ever use in just about 8 minutes. And it's wireless!"

~William McDonough
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org/attachments/20090616/2b34cbce/attachment-0003.html>