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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>S5 now has a stand off that spans the high
point of the “sine wave” in the corrugated roofing, including butyl
tape on each foot. It’s already engineered.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>My 2 volts,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Aram<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>
re-wrenches-bounces@lists.re-wrenches.org
[mailto:re-wrenches-bounces@lists.re-wrenches.org] <b><span style='font-weight:
bold'>On Behalf Of </span></b>Matt Lafferty<br>
<b><span style='font-weight:bold'>Sent:</span></b> Saturday, March 28, 2009
10:15 AM<br>
<b><span style='font-weight:bold'>To:</span></b> 'RE-wrenches'<br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [RE-wrenches]
Hardware request</span></font><o:p></o:p></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>Hi Allan,</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>Sounds like this is a government or
similar caliber job. Some better quality metal-roof products have an actual
filler/shim for this purpose. One of those things that architects tend to
like. Depending on the age of the construction, it may just be possible
that there are some records regarding the actual make/model of the corrugated
products. If possible, check with the original contractor for the roof system
&/or the architect.</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>If that doesn't pan out, here is a
homemade version made out of Trex (or similar) on a bandsaw. <a
href="http://www.buildingwithawareness.com/blog/2008/12/how-to-mount-photovoltaic-pv-solar-panels-to-a-corrugated-metal-roof/">http://www.buildingwithawareness.com/blog/2008/12/how-to-mount-photovoltaic-pv-solar-panels-to-a-corrugated-metal-roof/</a> .
This lets you make your penetration at the peaks. Note the drain-through
notches for the trough sections. I've made similar spacers in the past but
never came up with the drain-through notches. Instead, I labored with tapering
the up-slope side of the part to allow water to run "over" the block.
I really like the simplicity of the notch and all to the material it saves!</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>I also like Bob-O's description of
the DP&W "H" profile for a couple reasons... Mostly that it won't
dam the troughs and your penetration is at the peak.</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>Best of success!</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>Matt Lafferty</span></font><o:p></o:p></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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<p class=MsoNormal style='margin-bottom:12.0pt'><b><font size=2 face=Tahoma><span
style='font-size:10.0pt;font-family:Tahoma;font-weight:bold'>From:</span></font></b><font
size=2 face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> Allan
Sindelar<br>
<b><span style='font-weight:bold'>Sent:</span></b> Thursday, March 26, 2009
11:02 PM<br>
<b><span style='font-weight:bold'>To:</span></b>
re-wrenches@lists.re-wrenches.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> [RE-wrenches] Hardware request</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Wrenches,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>We have an unusual roof application. It’s for a
roof-mount array on a commuter rail station canopy in <st1:City w:st="on"><st1:place
w:st="on">Santa Fe</st1:place></st1:City>. The roof is made up of a coated
corrugated steel top layer, in the shape of a series of sine waves, over
roofing felt, 5/8” plywood sheathing, and a corrugated metal base called
Epicore. The array will be one long single row of modules in portrait mode on
Solarmount rails. I’m leaving out some details in order to get to the
point. <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>We intend to base our mounting of the rails on a
through-bolt mounting attachment, using threaded rod with the necessary nuts,
washers, and sealant layers to create a compressed sandwich approach. The
corrugated top layer has peaks and troughs of about 1½” radius.
We’ll use L-feet to mount the module rails to the through-bolts, which
will likely be made from 5/16” or 3/8” threaded rod (size to be
determined as we work out the details at the site). We will drill through the
troughs of the corrugations, rather than the peaks, to avoid compressing the
corrugated roofing; drilling the troughs has the project engineer’s
approval.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>What we need is something like half-round anodized aluminum
or powder-coated steel stock material. The idea is that the convex round
profile fills the corrugated trough, and the flat surface forms a base for the
L-foot. We would expect to cut the stock to lengths, say 4-6”, drill one
hole through the center cross-section for our through-bolt, and mount the
sections in the troughs, one at each through-bolt location.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>What product, likely used in some other industry or
manufacturing process, would work for our half-round stock? The job isn’t
big enough to justify a custom extrusion – we probably need two dozen of
the finished pieces.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Thank you for any ideas,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Allan Sindelar, Positive Energy<o:p></o:p></span></font></p>
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