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<DIV><SPAN class=441453603-27072011><FONT face=Arial>Seems as though
a motivated Architect could order custom SIP panels with dimensioned lumber
ribs attached on the inside surface of the exterior roof panel. It would
allow for NS rows of attachments without puncturing the envelope.
</FONT></SPAN></DIV>
<DIV><SPAN class=441453603-27072011><FONT face=Arial>We priced SIP construction
years ago and found that mfgrs can build virtually <U>any</U> wall or roof panel
configuration the design requires. All it takes is more
money.</FONT></SPAN></DIV>
<DIV><SPAN class=441453603-27072011><FONT face=Arial>That's why we ended up
with 2x6 with spray foam shell.</FONT></SPAN></DIV>
<DIV><SPAN class=441453603-27072011><FONT face=Arial></FONT></SPAN> </DIV>
<DIV><SPAN class=441453603-27072011>
<DIV><FONT size=2><FONT face=Arial><STRONG>Jim
Duncan</STRONG></FONT></FONT></DIV>
<DIV><FONT face=Arial size=2><STRONG>North Texas Renewable
Energy</STRONG></FONT></DIV>
<DIV>
<DIV>
<DIV><FONT face=Arial size=2><STRONG>NABCEP Certified Solar
PV</STRONG></FONT></DIV>
<DIV><FONT face=Arial size=2><STRONG>Installer
No.031310-57</STRONG></FONT></DIV>
<DIV><FONT face=Arial size=2><STRONG>TECL
27398</STRONG></FONT></DIV></DIV></DIV>
<DIV><A href="mailto:ntrei@1scom.net"><FONT face=Arial
size=2><STRONG>ntrei@1scom.net</STRONG></FONT></A><FONT face=Arial
size=2><STRONG> </STRONG></FONT></DIV>
<DIV><FONT face=Arial size=2><STRONG>817.917.0527</STRONG></FONT></DIV>
<DIV><A href="http://www.ntrei.com/"><FONT face=Arial
size=2><STRONG>www.ntrei.com</STRONG></FONT></A></DIV>
<DIV><FONT face=Arial size=2><STRONG></STRONG></FONT> </DIV><FONT
face=Arial></FONT></SPAN></DIV>
<BLOCKQUOTE dir=ltr style="MARGIN-RIGHT: 0px">
<DIV class=OutlookMessageHeader dir=ltr align=left><FONT face=Tahoma
size=2>-----Original Message-----<BR><B>From:</B>
re-wrenches-bounces@lists.re-wrenches.org
[mailto:re-wrenches-bounces@lists.re-wrenches.org]<B>On Behalf Of </B>R Ray
Walters<BR><B>Sent:</B> Tuesday, July 26, 2011 1:49 PM<BR><B>To:</B>
gary@icarussolarservices.com; RE-wrenches<BR><B>Subject:</B> Re: [RE-wrenches]
Module Racking Attachment to SIP Roof<BR><BR></FONT></DIV>One problem that
came up on a project recently, is that your penetrations (as proposed in your
solution below) will essentially ruin the thermal performance of the SIPs
system.
<DIV>The whole point of the SIPs system is that there are no thermal short
circuits such as framing members that allow heat to be transmitted
around all that insulation.</DIV>
<DIV>The project I was referring to was with NREL, and a smart engineer caught
it, and forced the PV contractor to mount in a way without penetrations.</DIV>
<DIV>I also work with very savvy architects that are now specifying minimal
penetrations through the thermal envelope.</DIV>
<DIV>I'd suggest a standing seam roof, with S5 clamps. Ask the roofer to use
extra attachment screws, if you're worried.</DIV>
<DIV><BR></DIV>
<DIV><BR>
<DIV><SPAN class=Apple-style-span
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<DIV>R. Walters</DIV>
<DIV><A href="mailto:ray@solarray.com">ray@solarray.com</A></DIV>
<DIV>Solar Engineer</DIV>
<DIV><BR class=khtml-block-placeholder></DIV>
<DIV><BR class=khtml-block-placeholder></DIV><BR
class=Apple-interchange-newline></SPAN></DIV><BR>
<DIV>
<BLOCKQUOTE type="cite">
<DIV bgcolor="#ffffff" text="#000000"><FONT color=#000000 size=+1><BR>One
solution could be a product that had a bolt-plate on the bottom of the SIP,
that penetrates the SIP with long 5/16" threaded bolt(s), and then attaching
to the PV mount at the top of the SIP. The UniRac SolarMount steel flat-top
mount has four 5/16" bolt-holes and might be a good choice. This method
should have no problem achieving the required pull-out
resistance.<BR><BR>Any suggestions, installation experience, on how to put
PV on a SIP roof?<BR></FONT><FONT color=#000000 size=+1><BR></FONT>
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text-decoration:underline;
text-underline:single;}
a:visited, span.MsoHyperlinkFollowed
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mso-style-priority:99;
color:purple;
mso-themecolor:followedhyperlink;
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span.SpellE
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span.GramE
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mso-hansi-theme-font:minor-latin;
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@page WordSection1
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margin:1.0in 1.0in 1.0in 1.0in;
mso-header-margin:.5in;
mso-footer-margin:.5in;
mso-paper-source:0;}
div.WordSection1
{page:WordSection1;}
-->
</STYLE>
<!--[if gte mso 10]>
<style>
/* Style Definitions */
table.MsoNormalTable
{mso-style-name:"Table Normal";
mso-tstyle-rowband-size:0;
mso-tstyle-colband-size:0;
mso-style-noshow:yes;
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mso-style-qformat:yes;
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mso-pagination:widow-orphan;
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font-family:"Calibri","sans-serif";
mso-ascii-font-family:Calibri;
mso-ascii-theme-font:minor-latin;
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mso-hansi-theme-font:minor-latin;
mso-bidi-font-family:"Times New Roman";
mso-bidi-theme-font:minor-bidi;}
</style>
<![endif]--><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="3074"/>
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1"/>
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<DIV class=WordSection1>
<P class=MsoNormal style="MARGIN-BOTTOM: 0pt; LINE-HEIGHT: normal"><FONT
color=#000000><SPAN style="FONT-SIZE: 10pt">Regards,<BR><BR><BR>Gary
Willett,
PE<BR></SPAN></FONT></P></DIV></DIV></DIV></BLOCKQUOTE></DIV><BR></DIV></BLOCKQUOTE></BODY></HTML>