<div dir="ltr"><div dir="ltr"><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Hi Ray,</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">I'm happy to have some confirmation from another major storm's impact. My father has a home in Dominica, which was hit by Maria with 165 mph winds before it moved on to PR. He had a mixed bag of results with solar panels (forget about the pole mounts I installed there over 20 years ago!)</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">I was just reminded by your email about something I plan to try. For panels that are pitched on flat roofs, I am going to double up and install BOTH IronRidge CAMO and UFOs. With proper planning, it would be pretty easy to install with UFOs first and then go back and snap in all of the CAMOs without much labor cost and an acceptable material cost for the added peace of mind.</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div><div dir="ltr"><div dir="ltr"><br>Jason Szumlanski<div><span style="color:rgb(51,51,51);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:13px">Principal Solar Designer | Florida Solar Design Group</span><br style="color:rgb(51,51,51);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:13px"><span style="color:rgb(51,51,51);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:13px">NABCEP Certified Solar Professional (PVIP)</span><br style="color:rgb(51,51,51);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:13px"><span style="color:rgb(51,51,51);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:13px">Florida State Certified Solar Contractor CVC56956</span></div></div></div></div><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, Mar 30, 2023 at 9:45 PM Ray Walters via RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org" target="_blank">re-wrenches@lists.re-wrenches.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div>
<p>Hi Jason;</p>
<p>I was like you: thinking good ol' bottom mounting with SS
hardware was the best. All of us old wrenches were wrong.<br>
</p>
<p>The top down mounting system is much stronger. I've only had a
handful of failures over 25 years, and all were bottom mounted.
The module completely ripped off the rack, leaving the stainless
hardware, washers, etc with a thin sliver of module frame
between. For repairs, I come back and install 1/2" SS angle on
the inside of the module frame to spread the load more. AND....on
new installs, no more bottom mounting. If you compare today's
modules with old 12v models from 20 years ago, you'll see: much
thinner metal on the bottom frames now. <br>
</p>
<p>Meanwhile I saw several systems survive Hurricane Maria in Puerto
Rico: all top down mounting. You are correct that the failures
come from the modules themselves letting go, not the racking.
Either the wind itself is so strong as to blow the glass, then the
frame looses its structure, or flying debris breaks the glass.
There were some MW PV fields that got tore up pretty bad. So no,
ground mounts definitely can be destroyed. They had tornadoes
moving inside of the hurricane, and you could see it in the
damage, 50' wide strips of total carnage with undamaged modules a
few feet away. Like you said, The storm has a mind of its own.<br>
</p>
<p>As far as mid clamp T bolt failures, I can confirm that probably
a majority are not installed correctly, especially Unirac, which
are terrible to get the T lined up right. I've done numerous
inspections world wide, and a signifcant % of racking I looked at
was NOT installed correctly. <br>
1) The Ts not squarely lined up with the rail, <br>
2) massive over torqueing, to the point the bolt can't be reversed
<br>
3) under torqueing, to the point the modules had slipped down a
little.</p>
<p>Most of these problems come from installing with an impact
driver. Impact drivers are a great tool (so is a hammer), but you
got to know when and where to Not use them, too. They're great
for installing the lags and L feet, but then get that tool off the
roof.</p>
<p>Use an electric screw driver, socket wrench, or <b>drill with a
clutch</b> set low to snug up the clamps, and then final torque
with a torque wrench. Period. <br>
</p>
<p>Ray Walters<br>
Remote Solar<br>
Former NABCEP 2004-2016<br>
</p>
<p><br>
</p>
<div>On 3/30/2023 4:34 PM, Jason Szumlanski
via RE-wrenches wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">
<div dir="ltr">
<div style="font-family:arial,helvetica,sans-serif">That would be
great if it were possible! I'm not sure how you bottom mount
a flush mount array. For a brief period many years ago, I
was building solar trailers. I would bottom mount 4-6 panel
arrays on rails in my warehouse and then hoist them up and
through-bolt the whole array on the top of a trailer. I
wasn't about to allow a trailer going 80 mph on the
interstate to have panels mounted on the roof with
mid-clamps! I had no idea what I was doing, but I had enough
sense to know that would have been a bad idea!</div>
<div style="font-family:arial,helvetica,sans-serif"><br>
</div>
<div style="font-family:arial,helvetica,sans-serif">I did provide
feedback to IronRidge regarding a handful of failures from
Hurricane Ian, but most of the issues we saw were most
likely related to catastrophic module failure. After all,
they are only tested to 5600 Pa uplift for even the best
options we have on the market and 2400 Pa for some (which I
refuse to use). The mid-clamp T-bolts tearing out of the
rail are slightly concerning, but this was pretty rare, and
honestly it could be related to installation torque issues,
misalignment, or coupled with module failure. There was no
widespread or definitive reason for rail failures at the
clamp locations.</div>
<div style="font-family:arial,helvetica,sans-serif"><br>
</div>
<div style="font-family:arial,helvetica,sans-serif">I would
suggest that FEMA's recommendation is overkill and not based
on much science, but conclusions based on anecdotal
information without statistical data. It should be
scrutinized. I think it would be a good idea to consider
bottom mount for ground racks and tilt mounts that allow it,
but it's just not practical or possible in the vast majority
of residential installation cases. On that note, I am not
aware of any ground mount failures around here from
Hurricane Ian except for submerged arrays that were washed
away from storm surge (Yikes!). And the handful of failures
that we observed were a drop in the bucket relative to the
installed numbers here.</div>
<div style="font-family:arial,helvetica,sans-serif"><br>
</div>
<div style="font-family:arial,helvetica,sans-serif">One other
thing. Wind direction, upwind obstructions/windbreaks, and
luck have a huge amount to do with failures (of both PV and
roofs themselves). These storms pick winners and losers. You
will have ten houses in a row with pool enclosures mangled,
and one in the middle that is unscathed. It's crazy to see.
We have lots of gated communities with houses close
together. When wind accelerates between houses, it can
topple air conditioning units and pool equipment. If you
look hard enough at where the wind was coming from and the
surrounding area, you can really see how there are so many
factors that come into play.</div>
<div>
<div dir="ltr">
<div dir="ltr"><br>
Jason Szumlanski
<div><span style="color:rgb(51,51,51);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:13px">Principal
Solar Designer | Florida Solar Design Group</span><br style="color:rgb(51,51,51);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:13px">
<span style="color:rgb(51,51,51);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:13px">NABCEP
Certified Solar Professional (PVIP)</span><br style="color:rgb(51,51,51);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:13px">
<span style="color:rgb(51,51,51);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:13px">Florida
State Certified Solar Contractor CVC56956</span></div>
</div>
</div>
</div>
<br>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Thu, Mar 30, 2023 at
7:35 AM Christopher Warfel via RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org" target="_blank">re-wrenches@lists.re-wrenches.org</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div>
<p><font size="4">If you look at FEMA's design guide for
solar installations in FL and the Caribbean, the
recommended module to rail attachment method is back
to using the attachment holes in the solar module.
Chris</font><br>
</p>
<div>On 3/30/2023 5:56 AM, Jason Szumlanski via
RE-wrenches wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">
<div dir="ltr">
<div style="font-family:arial,helvetica,sans-serif">This
thread has morphed into more than it started as,
and for good reason. I want to provide some
practical/anecdotal information, having just gone
through arguably the most catastrophic wind event
in Florida's history (Ian) since the boom in solar
energy started, and another major wind event
(Irrma) just 5 years ago.</div>
<div style="font-family:arial,helvetica,sans-serif"><br>
</div>
<div style="font-family:arial,helvetica,sans-serif">First,
Aside from the Sunmodo and Quickbolt decking-only
products, I would check out
IronRidge's new entrant into the market, the
IronRidge HUG. If you can't find info on it, ask
your distributor or IronRidge sales rep. They have
data on truss attachments and also missed truss
installation procedures. It's a unique approach to
a dual-purpose product, and they did a stellar job
on the engineering documentation in my opinion.</div>
<div style="font-family:arial,helvetica,sans-serif"><br>
</div>
<div style="font-family:arial,helvetica,sans-serif">Ok,
now let's get to my most important point. Due to
Hurricane Ian, the number of roofing PV
attachments that I have witnessed that failed due
to fastener pull-out (mine or competitors):</div>
<div style="font-family:arial,helvetica,sans-serif"><br>
</div>
<div style="font-family:arial,helvetica,sans-serif">ZERO</div>
<div style="font-family:arial,helvetica,sans-serif"><br>
</div>
<div style="font-family:arial,helvetica,sans-serif">The
only building where we had any mounts fail was on
a flat roof with pitched panels and Anchor
Products mounts on TPO membrane, but the mounts
themselves did not cause the failure. The roofing
system itself failed, causing a small section of
the PV system to fail. But even in that case, the
following applies...</div>
<div style="font-family:arial,helvetica,sans-serif"><br>
</div>
<div style="font-family:arial,helvetica,sans-serif">The
weak point in a well-designed and installed system
is not the fastener or flashing system. The module
to rail connection is where we saw failures. These
failures fell into a few categories:</div>
<div style="font-family:arial,helvetica,sans-serif">
<ul>
<li>Windborne debris struck panel, panel frame
failed, panel popped out of mid-clamps.</li>
<li>Catastrophic wind forces popped panels out
of mid-clamps (a good percentage of panels
found INTACT and still functional on the
ground!) I suspect the panels became covex in
the wind, bending frames inward.</li>
<li>Windborne debris struck mounting system
components, panel dislodged, often still on
the roof suspended by DC leads.</li>
<li>Mid-clamp t-bolt tore out of aluminum rail
channel (IronRidge UFO, Unirac SM).</li>
<li>Mid-clamp sheared off (Quick Mount QRail).</li>
<li>Unexplained module detachment failures.</li>
</ul>
</div>
<div style="font-family:arial,helvetica,sans-serif">On
9/28/22, while I stayed up all night bracing
myself against my front door that I thought was
about to fail, I was imagining how many roof leaks
my clients were about to endure, and wondered
about the efficacy of my business going forward.
Those fears never materialized. Aside from a
handful of minor panel dislodgements, there was no
panic following the storm (with respect to solar
panels). The bigger problem became all of the
people needing to remove panels for roof
replacements, but PV panels largely protected
roofs in the areas where they were installed.
Sadly, the rest of the roof often did not fare as
well.</div>
<div style="font-family:arial,helvetica,sans-serif"><br>
</div>
<div style="font-family:arial,helvetica,sans-serif">Anyway,
back to the decking attachments. I have been
skeptical of non-flashed products for comp shingle
roofs for a long time. My thinking is coming
around, particularly with the HUG (I trust
IronRidge's testing regime). And sealants have
come so far. This method will remain up for debate
probably for a long time. Around here, I am pretty
certain these products will outlast the shingles
they are placed upon. We only get 15 years out of
most shingle roofs around here.</div>
<div style="font-family:arial,helvetica,sans-serif"><br>
</div>
<div style="font-family:arial,helvetica,sans-serif">About
the pull-out fears... Mine are gone. We have done
many flat roofs with long fasteners through steel
decking or wood decking. These screws are usually
something like #15 XHD screws in lengths from 5 -
12". Not a single failure. We have also used
Quick Mount QBase Low-Slope bases on pitched tile
roofs that were only screwed into decking with 4
fasteners each (due to horizontal truss
transitions) in some cases. Zero failures. But the
most relevant attachments I can think of that are
germane to this discussion are the many thousands
of S-5 SolarFoot that we have screwed into decking
on 5V metal roofs around here. These have four
screws per attachment, and S-5 load tests show
something like 240 lbs of pull-out strength in OSB
(adjusted for safety factor). When engineered for
our wind loads, we usually get anywhere from 36-48
inch attachment spacing, sometimes 24 inches in
certain roof zones. Again, not a single failure.</div>
<div style="font-family:arial,helvetica,sans-serif"><br>
</div>
<div style="font-family:arial,helvetica,sans-serif">I
have more solar installations on Sanibel Island
and Fort Myers Beach (Hurricane Ian Ground zero)
than anyone. Many of those have decking-only
attachments, S-5 clamps, flat roofs, or other
attachments other than trusses. I can tell you
unequivocally that I trust decking-only
attachments from a pull-out strength standpoint.
When properly engineered, with cautious attachment
spacing, these mounts work in both OSB and
plywood. Because of the inconsistencies in OSB, we
always err on the side of caution, if not in the
engineering, then in the installation, by
installing more attachments than prescribed. But
the evidence is clear. It works.</div>
<div style="font-family:arial,helvetica,sans-serif"><br>
</div>
<div style="font-family:arial,helvetica,sans-serif"><br>
</div>
<div style="font-family:arial,helvetica,sans-serif">Caveat
to the above: I have zero experience with snow or
seismic, and no experience on roofs exceeding 8:12
pitch, and few above 6:12. </div>
<div style="font-family:arial,helvetica,sans-serif"><br>
</div>
<div style="font-family:arial,helvetica,sans-serif">And
one more shout-out to S-5 clamps on standing seam
roofs. Aside from one minor failure of the roof
metal itself, not an S-5 failure, we had zero
failures of S-5 clamps attachments to report.</div>
<div style="font-family:arial,helvetica,sans-serif"><br>
</div>
<div>
<div dir="ltr">
<div dir="ltr">
<div style="font-family:arial,helvetica,sans-serif">I
hope this anecdotal information helps and
sets some fears aside. Please reach out to
me off-list if you want any specifics or
details about our experience with
catastrophic wind events.</div>
<br>
</div>
<div dir="ltr">
<div style="font-family:arial,helvetica,sans-serif">Sincerely,</div>
</div>
<div dir="ltr"><br>
Jason Szumlanski
<div><span style="color:rgb(51,51,51);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:13px">Principal
Solar Designer | Florida Solar Design
Group</span><br style="color:rgb(51,51,51);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:13px">
<span style="color:rgb(51,51,51);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:13px">NABCEP
Certified Solar Professional (PVIP)</span><br style="color:rgb(51,51,51);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:13px">
<span style="color:rgb(51,51,51);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:13px">Florida
State Certified Solar Contractor CVC56956</span></div>
</div>
</div>
</div>
<br>
</div>
<br>
<img alt="" style="display:flex" src="https://mailtrack.io/trace/mail/3fe2b3d4fd55f6aa5564b2f98c8384dac44a3b1e.png?u=1613865" width="0" height="0">
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Thu, Mar 30,
2023 at 2:47 AM William Miller via RE-wrenches
<<a href="mailto:re-wrenches@lists.re-wrenches.org" target="_blank">re-wrenches@lists.re-wrenches.org</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div>
<div lang="EN-US">
<div>
<p class="MsoNormal"><span style="font-family:Verdana,"sans-serif";color:rgb(31,73,125)">Friends:</span></p>
<p class="MsoNormal"><span style="font-family:Verdana,"sans-serif";color:rgb(31,73,125)"> </span></p>
<p class="MsoNormal"><span style="font-family:Verdana,"sans-serif";color:rgb(31,73,125)">Thanks
for bringing up this scenario. </span></p>
<p class="MsoNormal"><span style="font-family:Verdana,"sans-serif";color:rgb(31,73,125)"> </span></p>
<p class="MsoNormal"><span style="font-family:Verdana,"sans-serif";color:rgb(31,73,125)">I
have two problems with using a product
such as the easy-feet or other
deck-fastened brackets, particularly on
a rigid foam-above-sheeting roof:</span></p>
<p class="MsoNormal"><span style="font-family:Verdana,"sans-serif";color:rgb(31,73,125)"> </span></p>
<p style="margin-bottom:12pt"><span style="font-family:Verdana,"sans-serif";color:rgb(31,73,125)"><span>1.<span> </span></span></span><span style="font-family:Verdana,"sans-serif";color:rgb(31,73,125)">I
worry about compression of the foam
material over time. This could leave a
void under the bracket which could lead
to leaks or wobbly brackets.</span></p>
<p style="margin-bottom:12pt"><span style="font-family:Verdana,"sans-serif";color:rgb(31,73,125)"><span>2.<span> </span></span></span><span style="font-family:Verdana,"sans-serif";color:rgb(31,73,125)">I
don’t believe in chemical solutions for
sloped-roof rain-proofing. By that I
mean the use of caulks, gaskets, etc.
Since roofs were first thatched, the
overriding wisdom is that gravity is the
only way to reliably shed water.
Overlapping, seamless material is the
only method to use. Caulks degrade,
roof surfaces become powdery, and the
rafter is often under an architectural
feature or seam in the shingles.</span></p>
<p class="MsoNormal"><span style="font-family:Verdana,"sans-serif";color:rgb(31,73,125)">I
researched the PLP EZ foot back when the
company was DPW. The fasteners provided
were not rated for the application,
according to the fastener manufacturer.
If you can match the fasteners to the
decking and the forces, then maybe you
have a start to a mounting solution.</span></p>
<p class="MsoNormal"><span style="font-family:Verdana,"sans-serif";color:rgb(31,73,125)"> </span></p>
<p class="MsoNormal"><span style="font-family:Verdana,"sans-serif";color:rgb(31,73,125)">Whatever
product you use, I would install it on a
section of flashing metal, lapped under
the next course up. The flashing gives
a flat, seamless surface to caulk or
gasket to. The thicker and wider the
flashing, the more you distribute the
downward force </span></p>
<p class="MsoNormal"><span style="font-family:Verdana,"sans-serif";color:rgb(31,73,125)">applied
to the bracket by weight and fasteners.
Any voids under the bracket will have an
overlapped flashing above it.</span></p>
<p class="MsoNormal"><span style="font-family:Verdana,"sans-serif";color:rgb(31,73,125)"> </span></p>
<p class="MsoNormal"><span style="font-family:Verdana,"sans-serif";color:rgb(31,73,125)">I
hope these musings help you find a
solution.</span></p>
<p class="MsoNormal"><span style="font-family:Verdana,"sans-serif";color:rgb(31,73,125)"> </span></p>
<p class="MsoNormal"><span style="font-family:Verdana,"sans-serif";color:rgb(31,73,125)">William
Miller</span></p>
<p class="MsoNormal"><span style="font-family:Verdana,"sans-serif";color:rgb(31,73,125)"> </span></p>
<p class="MsoNormal"><span style="font-family:Verdana,"sans-serif";color:rgb(31,73,125)">PS:
I have encountered this roof
configuration a few times on flat, <a href="https://homeinspectioninsider.com/built-up-roofing/" target="_blank">built-up
roofing (BUR</a>). We have dealt with
it by cutting through the foam,
installing blocking on top of the
sheeting and having a roofer feather the
blocks into the roofing with <a href="https://www.blueridgefiberboard.com/cant-strip-tapered-edge-smoothes-roof-drainage-slope/" target="_blank">cant
strips</a>. A pitched roof is a
different situation, however.</span></p>
<p class="MsoNormal"><span style="font-family:Verdana,"sans-serif";color:rgb(31,73,125)"> </span></p>
<p class="MsoNormal"><span style="font-family:Verdana,"sans-serif";color:rgb(31,73,125)">Wm</span></p>
<p class="MsoNormal"><span style="font-family:Verdana,"sans-serif";color:rgb(31,73,125)"> </span></p>
<p class="MsoNormal"><span style="font-family:Arial,"sans-serif";color:rgb(31,73,125)">Miller
Solar</span></p>
<p class="MsoNormal"><span style="font-family:Arial,"sans-serif";color:rgb(31,73,125)">17395
Oak Road, Atascadero, CA 93422</span></p>
<p class="MsoNormal"><span style="font-family:Arial,"sans-serif";color:rgb(31,73,125)">805-438-5600</span></p>
<p class="MsoNormal"><span style="font-family:Arial,"sans-serif";color:rgb(31,73,125)"><a href="http://www.millersolar.com/" target="_blank"><span style="color:blue">www.millersolar.com</span></a></span></p>
<p class="MsoNormal"><span style="font-family:Arial,"sans-serif";color:rgb(31,73,125)">CA
Lic. 773985</span></p>
<p class="MsoNormal"><span style="font-size:11pt;font-family:Calibri,"sans-serif";color:rgb(31,73,125)"> </span></p>
<p class="MsoNormal"><span style="font-family:Verdana,"sans-serif";color:rgb(31,73,125)"> </span></p>
<p class="MsoNormal"><b><span style="font-size:10pt;font-family:Tahoma,"sans-serif"">From:</span></b><span style="font-size:10pt;font-family:Tahoma,"sans-serif"">
RE-wrenches [mailto:<a href="mailto:re-wrenches-bounces@lists.re-wrenches.org" target="_blank">re-wrenches-bounces@lists.re-wrenches.org</a>]
<b>On Behalf Of </b>August Goers via
RE-wrenches<br>
<b>Sent:</b> Wednesday, March 29, 2023
11:47 AM<br>
<b>To:</b> RE-wrenches<br>
<b>Cc:</b> August Goers<br>
<b>Subject:</b> Re: [RE-wrenches]
Attaching Array To or Through Ply</span></p>
<p class="MsoNormal"> </p>
<div>
<p class="MsoNormal">We've found that in
the Bay Area that deck-mount solutions
typically pencil out structurally (via a
structural professional engineer) as
long as the deck is 1/2" plywood or
thicker, assuming we have all the info
on how the roof is constructed. The big
assumption is that we can get all that
roof construction info, which can be
difficult for existing structures.</p>
<div>
<p class="MsoNormal"> </p>
</div>
<div>
<p class="MsoNormal">We haven't taken
the plunge yet on the flahingless deck
mount products like the Sunmodo
Nanomount or Unirac Flashloc Duo. I do
think that they offer several
significant advantages including not
needing to find rafters, thus
virtually eliminating missed pilot
holes, and not disturbing the comp
shingle by eliminating prying up the
courses to insert the flashing. </p>
<div>
<p class="MsoNormal"> </p>
</div>
<div>
<p class="MsoNormal">August</p>
</div>
<div>
<p class="MsoNormal">Luminalt</p>
</div>
</div>
</div>
<p class="MsoNormal"> </p>
<div>
<div>
<p class="MsoNormal">On Wed, Mar 29,
2023 at 11:34 AM Solar Energy
Solutions via RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org" target="_blank">re-wrenches@lists.re-wrenches.org</a>>
wrote:</p>
</div>
<blockquote style="border-top:none;border-right:none;border-bottom:none;border-left:1pt solid rgb(204,204,204);padding:0in 0in 0in 6pt;margin-left:4.8pt;margin-right:0in">
<div>
<p class="MsoNormal">We like Spider
Rax… with the flashing!</p>
<div>
<p class="MsoNormal"> </p>
</div>
<div>
<div>
<div>
<table style="width:225pt;background:rgb(233,233,235);border-collapse:collapse" width="525" cellspacing="0" cellpadding="0" border="0">
<tbody>
<tr>
<td style="padding:0in">
<table style="width:128.55pt;background:rgb(233,233,235)" width="300" cellspacing="0" cellpadding="0" border="0">
<tbody>
<tr>
<td style="padding:6pt 0in">
<div style="margin-left:12pt;margin-right:12pt;max-width:100%;overflow:hidden">
<p class="MsoNormal"><b><span style="font-size:9pt;font-family:Helvetica,"sans-serif""><a href="https://spiderrax.com/" target="_blank"><span style="color:black;text-decoration:none">Spider-Rax
PV Solar
Mounting</span></a></span></b></p>
<p class="MsoNormal"><b><span style="font-size:8.5pt;font-family:Helvetica,"sans-serif""><a href="https://spiderrax.com/" target="_blank"><span style="color:rgb(162,162,169);text-decoration:none">spiderrax.com</span></a></span></b></p>
</div>
</td>
<td style="width:15.45pt;padding:0in 9pt 0in 0in" width="36">
<p class="MsoNormal"><span style="font-family:Helvetica,"sans-serif""><a href="https://spiderrax.com/" target="_blank"><span style="text-decoration:none"><b>Error!
Filename not
specified.</b></span></a></span></p>
</td>
</tr>
</tbody>
</table>
</td>
</tr>
</tbody>
</table>
</div>
</div>
<p class="MsoNormal" style="margin-bottom:12pt"> </p>
<div>
<div>
<div>
<div id="m_-7918957773201700933m_3652185581101052749m_-7827179430652818356m_6716844740238566097m_3963197914649838960yiv6213109167yui_3_13_0_rc_1_1_1382394418853_23166">
<p class="MsoNormal"><b>Andrew
Koyaanisqatsi</b></p>
</div>
<div id="m_-7918957773201700933m_3652185581101052749m_-7827179430652818356m_6716844740238566097m_3963197914649838960yiv6213109167yui_3_13_0_rc_1_1_1382394418853_23122">
<p class="MsoNormal">President</p>
</div>
<div id="m_-7918957773201700933m_3652185581101052749m_-7827179430652818356m_6716844740238566097m_3963197914649838960yiv6213109167yui_3_13_0_rc_1_1_1382394418853_23169">
<p class="MsoNormal"><b>Solar
Energy Solutions, Inc.<br>
<i id="m_-7918957773201700933m_3652185581101052749m_-7827179430652818356m_6716844740238566097m_3963197914649838960yui_3_16_0_ym19_1_1471541494300_7793">The
BRIGHT CHOICE</i></b></p>
</div>
<div id="m_-7918957773201700933m_3652185581101052749m_-7827179430652818356m_6716844740238566097m_3963197914649838960yiv6213109167yui_3_13_0_rc_1_1_1382394418853_23169">
<p class="MsoNormal"> </p>
</div>
<div id="m_-7918957773201700933m_3652185581101052749m_-7827179430652818356m_6716844740238566097m_3963197914649838960yiv6213109167yui_3_13_0_rc_1_1_1382394418853_23174">
<p class="MsoNormal"><b>Since
1987, helping you and
your </b></p>
</div>
<div id="m_-7918957773201700933m_3652185581101052749m_-7827179430652818356m_6716844740238566097m_3963197914649838960yiv6213109167yui_3_13_0_rc_1_1_1382394418853_23174">
<p class="MsoNormal"><b>Portland
neighbors move towards
an environmentally
sustainable future.</b></p>
</div>
<div id="m_-7918957773201700933m_3652185581101052749m_-7827179430652818356m_6716844740238566097m_3963197914649838960yiv6213109167yui_3_13_0_rc_1_1_1382394418853_23174">
<p class="MsoNormal"> </p>
</div>
<div id="m_-7918957773201700933m_3652185581101052749m_-7827179430652818356m_6716844740238566097m_3963197914649838960yiv6213109167yui_3_13_0_rc_1_1_1382394418853_23177">
<p class="MsoNormal"><b><a href="tel:503-238-4502" target="_blank">503-238-4502</a><br>
<a href="http://www.solarenergyoregon.com/" id="m_-7918957773201700933m_3652185581101052749m_-7827179430652818356m_6716844740238566097m_3963197914649838960yiv6213109167yui_3_16_0_1_1418769668206_5441" target="_blank">www.SolarEnergyOregon.com</a></b></p>
</div>
</div>
</div>
</div>
<div>
<p class="MsoNormal"><br>
<br>
</p>
<p class="MsoNormal" style="margin-bottom:12pt">On
Mar 29, 2023, at 11:04 AM, Jerry
Shafer via RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org" target="_blank">re-wrenches@lists.re-wrenches.org</a>>
wrote:</p>
</div>
<blockquote style="margin-top:5pt;margin-bottom:5pt">
<div>
<p class="MsoNormal"><span style="font-family:Tahoma,"sans-serif""></span></p>
<div>
<p class="MsoNormal">Wrenches</p>
<div>
<p class="MsoNormal">Sounds
like a SIP's type product,
there are quite a few
multi hole attachment
bases that are designed
for SIP's. Most will have
a larger base, lots of
holes for screws to attach
that do not require
rafters underneath to
attach.</p>
</div>
<div>
<p class="MsoNormal">Fun
times</p>
</div>
</div>
<p class="MsoNormal"> </p>
<div>
<div>
<p class="MsoNormal">On Wed,
Mar 29, 2023, 8:30 AM
frenergy via RE-wrenches
<<a href="mailto:re-wrenches@lists.re-wrenches.org" target="_blank">re-wrenches@lists.re-wrenches.org</a>>
wrote:</p>
</div>
<blockquote style="border-top:none;border-right:none;border-bottom:none;border-left:1pt solid rgb(204,204,204);padding:0in 0in 0in 6pt;margin-left:4.8pt;margin-right:0in">
<div>
<p>Matt,</p>
<p> I guess my
questions are 1/2"
plywood or 5/8" and how
thick is the foam? Oh
and I assume its nominal
2X6 T&G? Do you
know how the plywood is
attached?.....through
the foam into the
T&G?... to
stringers, nailers or
whatever they're called?</p>
<p>Bill</p>
<pre>Feather River Solar Electric </pre>
<pre>Bill Battagin, Owner</pre>
<pre>4291 Nelson St.(shipping) </pre>
<pre>5575 Genesee Rd. (USPS, UPS)</pre>
<pre>Taylorsville, CA 95983</pre>
<pre>530.284.1925 Office/ 530.258.1641 Cell</pre>
<pre>CA Lic 874049</pre>
<pre>Solar powered since 1982</pre>
<div>
<p class="MsoNormal">On
3/29/2023 7:53 AM,
Dave Tedeyan via
RE-wrenches wrote:</p>
</div>
<blockquote style="margin-top:5pt;margin-bottom:5pt">
<div>
<p class="MsoNormal">Hi
Matt, </p>
<div>
<p class="MsoNormal">I've
used these in the
past when on a
comp roof and
there was no good
way to get into
the rafters (or
TJI's in this
case)</p>
</div>
<div>
<p class="MsoNormal"><a href="https://sunmodo.com/nanomount/" target="_blank">https://sunmodo.com/nanomount/</a></p>
</div>
<div>
<p class="MsoNormal"> </p>
</div>
<div>
<p class="MsoNormal">You
might want to
replace the screws
with something
shorter and
beefier though to
get more grip if
you are only going
into 1/2" plywood.</p>
</div>
<div>
<p class="MsoNormal"> </p>
</div>
<div>
<p class="MsoNormal">Cheers,</p>
</div>
<div>
<p class="MsoNormal">Dave</p>
</div>
</div>
<p class="MsoNormal"> </p>
<div>
<div>
<p class="MsoNormal">On
Wed, Mar 29, 2023
at 10:38 AM Matt
Sherald via
RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org" target="_blank">re-wrenches@lists.re-wrenches.org</a>>
wrote:</p>
</div>
<blockquote style="border-top:none;border-right:none;border-bottom:none;border-left:1pt solid rgb(204,204,204);padding:0in 0in 0in 6pt;margin-left:4.8pt;margin-right:0in">
<div>
<div>
<p class="MsoNormal">Hi
All,</p>
</div>
<div>
<p class="MsoNormal"> </p>
</div>
<div>
<p class="MsoNormal">I've
run into a
roof-mounted
job where the
roof is
built-up with
the following:</p>
</div>
<div>
<p class="MsoNormal"> </p>
</div>
<div>
<p class="MsoNormal">Comp
shingle</p>
</div>
<div>
<p class="MsoNormal">Plywood</p>
</div>
<div>
<p class="MsoNormal">Foam
board</p>
</div>
<div>
<p class="MsoNormal">T&G
(roof deck,
but also
interior
ceiling)</p>
</div>
<div>
<p class="MsoNormal"> </p>
</div>
<div>
<p class="MsoNormal">The
beams that
hold the
t&g up are
wide-spaced
and not
convenient for
fastening the
full extent of
the array. </p>
</div>
<div>
<p class="MsoNormal"> </p>
</div>
<div>
<p class="MsoNormal">This
being the
case, I was
considering
other
fastening
options and am
writing to
pick the
collective
brain of the
Wrenches to
see how others
have addressed
similar
situations.</p>
</div>
<div>
<p class="MsoNormal"> </p>
</div>
<div>
<p class="MsoNormal">One
thought I had
was to use the
PLP Easy
Mounting Foot
and I'd be
glad for any
opinions on
that or
another
solution. </p>
</div>
<div>
<p class="MsoNormal"> </p>
</div>
<div>
<p class="MsoNormal">-Matt</p>
</div>
<div>
<p class="MsoNormal"><br>
-- </p>
<div>
<div>
<div>
<div>
<div>
<p class="MsoNormal">Matt
Sherald</p>
</div>
<p class="MsoNormal">PIMBY
Energy, LLC</p>
</div>
<div>
<p class="MsoNormal">304-704-5943</p>
</div>
<p class="MsoNormal"> </p>
</div>
<p class="MsoNormal"> </p>
</div>
</div>
</div>
</div>
<p class="MsoNormal" style="margin-bottom:12pt"><br>
</p>
</blockquote>
</div>
</blockquote>
</div>
</blockquote>
</div>
<p class="MsoNormal" style="margin-bottom:12pt"><br>
</p>
</div>
</blockquote>
</div>
</div>
<p class="MsoNormal" style="margin-bottom:12pt">_______________________________________________<br>
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</blockquote>
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</blockquote>
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<br>
<fieldset></fieldset>
<pre>_______________________________________________
</pre>
</blockquote>
<div>-- <br>
<div>
<div>
<div>
<div>
<div> <font face="PMingLiU-ExtB">
Christopher
Warfel</font><br>
<font face="PMingLiU-ExtB">
ENTECH Engineering, Inc.</font><br>
<font face="PMingLiU-ExtB">PO Box 871, Block
Island, RI 02807</font><br>
<font face="PMingLiU-ExtB">
401-466-8978</font><br>
<font face="PMingLiU-ExtB"><a href="http://entech-engineering.com" target="_blank"><img src="cid:187373816a31e56e431" alt="" width="274" height="121" border="0"></a><br>
</font><br>
</div>
</div>
</div>
</div>
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</div>
</div>
</blockquote>
</div>
</div>
<br>
<fieldset></fieldset>
<pre>_______________________________________________
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