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Thanks for the pitch info, very helpful. Are you using a heavy wall
thickness on the pole? I thought with DP &W we could only go 6
ft out of the ground without increasing the pole size or adding
bracing.<br>
<br>
Ray<br>
<br>
<div class="moz-cite-prefix">On 11/13/2012 4:21 PM,
<a class="moz-txt-link-abbreviated" href="mailto:toddcory@finestplanet.com">toddcory@finestplanet.com</a> wrote:<br>
</div>
<blockquote cite="mid:1352848899.764921770@webmail.finestplanet.com"
type="cite"><font face="arial" size="4">
<p style="margin:0;padding:0;"><span style="font-family: arial;
font-size: 14pt;">
</span></p>
<p style="margin:0;padding:0;margin: 0; padding: 0;">ray,</p>
<p style="margin:0;padding:0;margin: 0; padding: 0;"> </p>
<p style="margin:0;padding:0;margin: 0; padding: 0;">this has
been a learn by trial and error learning experience. i know
12/12 is ok and 5/12 is not... so somewhere in between those
two pitch angles there is change.</p>
<p style="margin:0;padding:0;margin: 0; padding: 0;"> </p>
<p style="margin:0;padding:0;margin: 0; padding: 0;">the latest
pole mount i did was a dpw rack with 3 kW on an 8" pole. i am
attaching a 100 kb pix of this monster!</p>
<p style="margin:0;padding:0;margin: 0; padding: 0;"> </p>
<p style="margin:0;padding:0;margin: 0; padding: 0;">todd</p>
<p style="margin:0;padding:0;margin: 0; padding: 0;"> </p>
<p style="margin:0;padding:0;margin: 0; padding: 0;"> </p>
<p style="margin:0;padding:0;margin: 0; padding: 0;"> </p>
<p style="margin:0;padding:0;margin: 0; padding: 0;"> </p>
<p style="margin:0;padding:0;margin: 0; padding: 0;"> </p>
<p style="margin:0;padding:0;margin: 0; padding: 0;"> </p>
<p style="margin:0;padding:0;margin: 0; padding: 0;">On Tuesday,
November 13, 2012 11:12am, "Ray Walters"
<a class="moz-txt-link-rfc2396E" href="mailto:ray@solarray.com"><ray@solarray.com></a> said:<br>
<br>
</p>
<div id="SafeStyles1352839321">HI Todd;<br>
<br>
That's very interesting. What roof pitch does that happen?
I'm guessing that at a step enough tilt, the frame damage is
alleviated?<br>
Also on your tall pole mounts what pole design do you use?
I've tried telescoping type, and guy wires on tall poles.<br>
<br>
Ray<br>
<br>
<div class="moz-cite-prefix">On 11/13/2012 12:08 PM, <a
moz-do-not-send="true" class="moz-txt-link-abbreviated"
href="mailto:toddcory@finestplanet.com">toddcory@finestplanet.com</a>
wrote:</div>
<blockquote><span style="font-family: arial; font-size: 14pt;">
<p style="margin:0;padding:0;margin: 0; padding: 0;">I
have never had good results with roof mounted pv in our
heavy (mount shasta) snow area. the snow tends to creep
down the glass and peel the bottom of the frame off the
module... and then the glass breaks as it has no support
in that area.</p>
<p style="margin:0;padding:0;margin: 0; padding: 0;"> </p>
<p style="margin:0;padding:0;margin: 0; padding: 0;">so,
around here... i do pole mounts.... WAY up in the air.</p>
<p style="margin:0;padding:0;margin: 0; padding: 0;"> </p>
<p style="margin:0;padding:0;margin: 0; padding: 0;">todd</p>
<p style="margin:0;padding:0;margin: 0; padding: 0;"> </p>
<p style="margin:0;padding:0;margin: 0; padding: 0;"> </p>
<p style="margin:0;padding:0;margin: 0; padding: 0;"> </p>
<p style="margin:0;padding:0;margin: 0; padding: 0;">On
Tuesday, November 13, 2012 8:04am, "Troy Harvey" <a
moz-do-not-send="true" class="moz-txt-link-rfc2396E"
href="mailto:taharvey@heliocentric.org"><taharvey@heliocentric.org></a>
said:<br>
<br>
</p>
<div id="SafeStyles1352833566">
<div>Hi all,</div>
<div>We have been doing PV installs for years with
L-feet and silicone without problems ever. Even still,
gravity flashings seem attractive in shingle roofs, to
provide a second level of security, and a more
professional install (at least in perception). But the
cost of these systems in significant in high snow load
areas where we often have L-feet every 2 feet on
center, to evenly load the structure below. In todays
costs, the feet could cost as much as 33% of the panel
value.</div>
<div>I'm wondering what other people are doing in high
snow load areas?</div>
<div>Also. I have noticed that there is a flip side to
the risks. We have found that unless you have good
quality shingles, on a preexisting roof, that
sometimes the adhesive sticking the shingles together
is stronger than the low quality shingles themselves -
adding risk of trying to shoe horn flashing in after
the fact. Your experience?</div>
<br>
<div><span style="border-collapse: separate; color:
#000000; font-family: Helvetica; font-style: normal;
font-variant: normal; font-weight: normal;
letter-spacing: normal; line-height: normal;
orphans: 2; text-align: -webkit-auto; text-indent:
0px; text-transform: none; white-space: normal;
widows: 2; word-spacing: 0px; font-size: medium;">thanks,<br>
<br>
Troy Harvey<br>
---------------------<br>
Principal Engineer<br>
Heliocentric<br>
801-453-9434<br>
<a moz-do-not-send="true"
href="mailto:taharvey@heliocentric.org">taharvey@heliocentric.org</a><br>
<br>
<br>
</span></div>
</div>
</span><br>
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