<html>
<body>
How do you flash your L feet without using a standoff? <br><br>
At 07:49 AM 7/2/2012, you wrote:<br>
<blockquote type=cite class=cite cite="">I've found that the Flashed
L-Foot connection costs about $0.10/w on a typical residential system,
and only adds about 1/4-1/2" to the height, which can be minimized
using the slotted holes in a typical L-Foot. We need a lot of attachments
for 172 mph design wind speeds around here. Flashings at $500 for a 5kW
seems high, especially now as the percentage of the system price
increases. That being said, I would install L-Foot flashings on my own
roof - no exceptions.<br><br>
On the other hand, I've seen sealed lag screw connections work with solar
pool heating systems for decades without indication of problems. A
variety of sealants were used in the "old days" but most
recently Sikaflex 1A (which incidentally is not indicated for asphaltic
roofs) and Geocell 2300 have worked great.<br><br>
My 10 cents, :)<br><br>
Jason Szumlanski<br>
Fafco Solar<br><br>
<br>
On Fri, Jun 29, 2012 at 10:49 AM, jay peltz
<<a href="mailto:jay@asis.com">jay@asis.com</a>> wrote:<br>
<dl>
<dd>I have had the opportunity in the past few years to learn a lot
about good roofing waterproofing practices according to the national
roofers association.<br><br>
<dd>They don't agree that caulk works as the primary means of sealant,
which is what you are doing with an L foot.<br><br>
<dd>And given that we have really good off the shelf approved flashed
feet, why would you use anything else?<br><br>
<dd>My 2 cents,<br><br>
<dd>Jay<br><br>
<dd>peltz power<br><br>
<br>
<dd>On Jun 29, 2012, at 5:16 AM, Glenn Burt wrote:<br><br>
<blockquote type=cite class=cite cite="">
<dd>We have used a variety of sealants over the years, and determined
simple Henry roofing cement is the best product for use on comp
roofing.<br>
<dd> <br>
<dd>We also used to bend our own L-foot flashing, which we cut from
standard Al coil stock (before all the manufactured options were
available). This might be a good option for you in this case.<br>
<dd> <br>
<dd> <br>
<dd> <br>
<dd>Glenn<br>
<dd> <br>
<dd>From:</b>
<a href="mailto:re-wrenches-bounces@lists.re-wrenches.org">
re-wrenches-bounces@lists.re-wrenches.org</a>
[mailto:<a href="mailto:re-wrenches-bounces@lists.re-wrenches.org">
re-wrenches-bounces@lists.re-wrenches.org</a>] On Behalf Of
</b>Drake<br>
<dd>Sent:</b> Thursday, June 28, 2012 6:40 PM<br>
<dd>To:</b> RE-wrenches<br>
<dd>Subject:</b> [RE-wrenches] L feet no flashing in shingle roof<br>
<dd> <br>
<dd>I'm quoting a job that has an existing array with L feet bolted down
to a shingle roof with no flashings. I want to match the height of
the existing array. Also some modules are being worked in around
skylights where it is unlikely that room would be available for flashings
to center over rafters.<br><br>
<dd>I've always used flashings. Would it be completely crazy to
follow suit of the existing array and bolt L feet straight to the shingle
roof with good roof sealant? If so, how would you seal it?<br><br>
<dd>Thanks,<br><br>
<dd>Drake <br><br>
<dd>Drake Chamberlin
<br>
<dd>ATHENS ELECTRIC LLC<br>
<dd>OH License 44810 <br>
<dd>CO license 3773<br>
<dd>NABCEP Certified PV<br>
</blockquote><br><br>
<dd>_______________________________________________<br>
<dd>List sponsored by Home Power magazine<br><br>
<dd>List Address:
<a href="mailto:RE-wrenches@lists.re-wrenches.org">
RE-wrenches@lists.re-wrenches.org</a><br><br>
<dd>Options & settings:<br>
<dd>
<a href="http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org">
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org</a>
<br><br>
<dd>List-Archive:
<a href="http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org">
http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org</a><br>
<br>
<dd>List rules & etiquette:<br>
<dd><a href="http://www.re-wrenches.org/etiquette.htm">
www.re-wrenches.org/etiquette.htm</a><br><br>
<dd>Check out participant bios:<br>
<dd><a href="http://www.members.re-wrenches.org">
www.members.re-wrenches.org</a><br><br>
<br>
</dl><br>
_______________________________________________<br>
List sponsored by Home Power magazine<br><br>
List Address: RE-wrenches@lists.re-wrenches.org<br><br>
Options & settings:<br>
<a href="http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org" eudora="autourl">
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org</a>
<br><br>
List-Archive:
<a href="http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org" eudora="autourl">
http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org</a><br>
<br>
List rules & etiquette:<br>
<a href="http://www.re-wrenches.org/etiquette.htm" eudora="autourl">
www.re-wrenches.org/etiquette.htm</a><br><br>
Check out participant bios:<br>
<a href="http://www.members.re-wrenches.org/" eudora="autourl">
www.members.re-wrenches.org</a></blockquote>
<x-sigsep><p></x-sigsep>
<font size=2>Drake
Chamberlin<x-tab> </x-tab>
<br>
ATHENS ELECTRIC LLC<br>
OH License
44810<x-tab> </x-tab><br>
CO license 3773<br>
NABCEP Certified PV<br>
</font></body>
</html>