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August and all,<br>
<br>
Been meaning to post these, but keep forgetting when I'm on the correct
computer. These were taken on my roof with a FLIR E4 (about $1000) in
January. Probably an unfair advantage, as the house was warm, and I
don't have very good insulation in my roof. <br>
<br>
Haven't had a chance to use the E4 much on customer sites. I'm just too
used to picking up the hammer, tape measure, and taking clues from
vents, skylights, etc.<br>
<br>
Best,<br>
<br>
Louis<br>
<br>
<blockquote style="border: 0px none;"
cite="mid:05aa8024c03543b8329c4489511298e4@mail.gmail.com" type="cite">
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#EDEEF0;padding-top:5px"> <div
style="display:table-cell;vertical-align:middle;padding-right:6px;"><img
photoaddress="august@luminalt.com" photoname="August Goers"
src="cid:part1.00050403.05080508@woofenden.net"
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<a moz-do-not-send="true" href="mailto:august@luminalt.com"
style="color:#737F92
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!important;">August Goers</a></div> <div
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<font color="#9FA2A5"><span style="padding-left:6px">May 11, 2015 at
12:45 PM</span></font></div></div></div>
<div style="color:#888888;margin-left:24px;margin-right:24px;"
__pbrmquotes="true" class="__pbConvBody">
<div class="moz-signature">Wrenches,<br><br>We have a Bosch D-tect
100 and Milwaukee M12 sub-scanner. The Milwaukee is<br>one of the most
worthless stud finders I have ever used. It might be<br>helpful for
scanning concrete but is basically useless for any other<br>scanning
task that I've tried. It definitely won't work on a roof.<br><br>The
D-tect has been helpful for rooftop use over the years. It is also<br>helpful
for scanning concrete to find rebar and post-tension cables.<br>Although
I can't say that it should be relied on to find post-tension<br>cables
(that is a big liability)!<br><br>In order to use the D-tect on the roof
you have a use a thin piece of<br>cardboard (like a manila folder) or a
thin flexible cutting board to get<br>it to roll properly. It is not
easy and takes quite a bit of finesse. It<br>has, however, been able to
find rafters in difficult cases where hammers<br>and other tricks aren't
working well. There is no question that it is<br>difficult to use on
comp shingle or other bumpy roofs and I've found that<br>most of our
installers give up before getting any benefit.<br><br>The bottom line is
that the old fashioned hammer and measuring up from<br>below is the
best way to reliably find rafters. You might find an<br>occasional roof
where the D-tect will help but for the most part it is<br>more finicky
than it is worth on a roof.<br><br>Has anyone tried using an infrared
camera to see rafters in the morning<br>when there might be a
temperature differential? I've been wanting to give<br>that a try but
haven't yet.<br><br>Best,<br><br>August<br><br><span><meta
charset="utf-8"><span style="color: rgb(80, 0, 80); font-family: arial,
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class="Apple-converted-space"> </span></span><br style="color: rgb(80,
0, 80); font-family: arial, sans-serif; font-size: 12.8000001907349px;
font-style: normal; font-variant: normal; font-weight: normal;
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widows: 1; word-spacing: 0px; -webkit-text-stroke-width: 0px;
background-color: rgb(255, 255, 255);"><div style="color: rgb(80, 0,
80); font-family: arial, sans-serif; font-size: 12.8000001907349px;
font-style: normal; font-variant: normal; font-weight: normal;
letter-spacing: normal; line-height: normal; orphans: auto; text-align:
start; text-indent: 0px; text-transform: none; white-space: normal;
widows: 1; word-spacing: 0px; -webkit-text-stroke-width: 0px;
background-color: rgb(255, 255, 255);"><div dir="ltr">Louis Woofenden<br>Engineering
Director<br>Net Zero Solar, LLC<br>101. W. 5th St., Tucson, AZ 85705<br>Arizona
ROC #248710, 259756, 259521<span class="Apple-converted-space"> </span><br><br>Phone:<span
class="Apple-converted-space"> </span><a href="tel:520.207.4053"
value="+15202074053" target="_blank" style="color: rgb(17, 85, 204);">520.207.4053</a><span
class="Apple-converted-space"> </span>Ex. 2<div>Cell:<span
class="Apple-converted-space"> </span><a href="tel:520.237.5040"
value="+15202375040" target="_blank" style="color: rgb(17, 85, 204);">520.237.5040</a><br>Fax:<span
class="Apple-converted-space"> </span><a href="tel:520.203.7230"
value="+15202037230" target="_blank" style="color: rgb(17, 85, 204);">520.203.7230</a><br><br>NABCEP
Certified PV Installation Professional™<br>NABCEP Certified Solar
Heating Installer™</div></div></div> </span></div>
<br>
</div>
</blockquote>
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