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<DIV><SPAN class=125222913-20102010><FONT face=Arial>Chris</FONT></SPAN></DIV>
<DIV><SPAN class=125222913-20102010>
<DIV><SPAN class=125222913-20102010><FONT face=Arial>You would need to use
something like the Unirac Fast foot to attach your PV standoffs. Fast
foot uses multiple smaller gauge screws into the decking,
necessary since engineered beams are not able to provide the 4-5
inches of solid wood needed for traditional lag bolts.
</FONT></SPAN></SPAN><SPAN class=125222913-20102010><FONT
face=Arial>The engineered beams you speak of, while rigid light-weight
and cost-competitive with dimension lumber, are usually
recommended for joists or floor beams though not usually used for
rafters. </FONT></SPAN></DIV></DIV>
<DIV><SPAN class=125222913-20102010><FONT face=Arial>I'm curious, how did the
homeowner get 1/2 inch decking past the building inspector? </FONT></SPAN></DIV>
<DIV><SPAN class=125222913-20102010><FONT face=Arial></FONT></SPAN> </DIV>
<DIV><SPAN class=125222913-20102010>
<DIV>Jim Duncan</DIV>
<DIV>North Texas Renewable Energy</DIV>
<DIV>486 W.N. Woody Road</DIV>
<DIV>Azle Texas 76020</DIV>
<DIV>
<DIV>
<DIV>NABCEP Certified Solar PV</DIV>
<DIV>Installer No.31310-57</DIV>
<DIV>TECL 27398</DIV></DIV></DIV>
<DIV><A href="mailto:ntrei@1scom.net">ntrei@1scom.net</A> </DIV>
<DIV>817.917.0527</DIV>
<DIV><A href="http://www.ntrei.com/">www.ntrei.com</A></DIV>
<DIV><FONT face=Arial></FONT> </DIV><FONT face=Arial></FONT></SPAN></DIV>
<DIV><SPAN class=125222913-20102010><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>Chris
Daum<BR><B>Sent:</B> Tuesday, October 19, 2010 9:58 PM<BR><B>To:</B>
'RE-wrenches'<BR><B>Subject:</B> [RE-wrenches] The perfect solar ready
roof<BR><BR></FONT></DIV>
<DIV dir=ltr align=left><o:p><FONT face="Comic Sans MS" color=#800000><SPAN
class=177075402-20102010>Dear Wrenches:</SPAN></FONT></o:p></DIV>
<DIV dir=ltr align=left><o:p><FONT face="Comic Sans MS" color=#800000><SPAN
class=177075402-20102010></SPAN></FONT></o:p> </DIV>
<DIV dir=ltr align=left><o:p><FONT face="Comic Sans MS" color=#800000><SPAN
class=177075402-20102010>I have a composite (shingle) roof at hand, and the
owner wants to upgrade it to a metal roof and install a 5kw+ array on
it. The rafters are those (sort of) particle board I-beams covered
with 1/2" plywood (and shingles). What's the best metal roofing you
could suggest--and would you beef up the wood to lag
into?</SPAN></FONT></o:p></DIV>
<DIV dir=ltr align=left><o:p><FONT face="Comic Sans MS" color=#800000><SPAN
class=177075402-20102010></SPAN></FONT></o:p> </DIV>
<DIV dir=ltr align=left><o:p><FONT face="Comic Sans MS" color=#800000><SPAN
class=177075402-20102010>Thanks for all your input.</SPAN></FONT></o:p></DIV>
<DIV dir=ltr align=left><o:p><FONT face="Comic Sans MS" color=#800000><SPAN
class=177075402-20102010></SPAN></FONT></o:p> </DIV>
<DIV dir=ltr align=left><o:p><FONT face="Comic Sans MS" color=#800000><SPAN
class=177075402-20102010>
<DIV align=left>
<DIV align=left><FONT face="Comic Sans MS" color=#000080 size=2>Chris
Daum</FONT></DIV>
<DIV align=left><FONT face="Comic Sans MS" color=#000080 size=2>Oasis Montana
Inc.</FONT></DIV>
<DIV align=left><FONT face="Comic Sans MS" color=#000080 size=2>406-777-4309
</FONT></DIV>
<DIV align=left><FONT face="Comic Sans MS" color=#000080 size=2>406-777-0830
fax</FONT><FONT face="Comic Sans MS" color=#000080 size=3><SPAN
class=046344020-29052008></SPAN></FONT></DIV></DIV></SPAN></FONT></o:p></DIV></BLOCKQUOTE></BODY></HTML>