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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Thanks Jeff,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>The multiple shingle layer argument is what is used in the
Inspector Guidelines. Thanks for a good overview of the issues.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Bill.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
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<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
re-wrenches-bounces@lists.re-wrenches.org
[mailto:re-wrenches-bounces@lists.re-wrenches.org] <b>On Behalf Of </b>Jeff
Oldham<br>
<b>Sent:</b> Tuesday, October 28, 2008 4:47 PM<br>
<b>To:</b> re-wrenches@lists.re-wrenches.org<br>
<b>Subject:</b> Re: [RE-wrenches] truss loading<o:p></o:p></span></p>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p>If trying the link that Bill supplied does not fully swing the LJO over to
reason try my tactic that has yet to fail me - I explain that virtually
all structures built in the last 30 years or so have engineered roofs to
handle both Live and Dead Loads, typically the Live Load is in excess of 12 p/s.f.
and is in addition to the Dead Load. The Live Load is for temperary loads such
as workers and materials. My pitch is simple; once I have placed my 3-4 p/s.f.
of glass over the roof it has eliminated that area for any live loads, because
we do not walk, stand or place heavy materials on our arrays. In essense I have
eliminated the potential for Live Loads of >12 p/s.f. with <4p/s.f. of
array. This blatant logic has yet to be balked at except in cases of
some commercial projects and older buildings. Also in many jurisdictions one is
allowed to put a second layer of shingles over the 1st w/o removal of the
original and w/o Engineering, if this is your case and the second layer has not
been installed then this argument can also work as our arrays are a fraction of
the weight of most any roofing system.<o:p></o:p></p>
<p>Good luck!<o:p></o:p></p>
<p> <o:p></o:p></p>
<p>-jeff o<br>
<br>
<br>
>From the Solar, Wind and Hydro powered office of Jeff Oldham/Regenerative
SOLutions<o:p></o:p></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Times-New-Roman","serif"'><br>
<br>
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