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<p><font face="Verdana">I am <font face="Verdana">pretty sure it is
the freeze<font face="Verdana">-tha<font face="Verdana">w <font
face="Verdana">cycle that the blocks are exposed to. I
have inspected hundreds of sys<font face="Verdana">tem
in the Nor<font face="Verdana">theas<font
face="Verdana">t and this is a recurring<font
face="Verdana"><font face="Verdana"> problem. It
has to b<font face="Verdana">e part of the
maintenance protocols or there will be
insufficient we<font face="Verdana">i<font
face="Verdana">ght to resist the<font
face="Verdana"> wind uplift forces. C<font
face="Verdana">hris</font></font></font></font></font></font></font></font></font></font></font></font></font></font></font><br>
</p>
<br>
<div class="moz-cite-prefix">On 6/30/2018 6:17 PM, Chris Schaefer
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAFOvL0Z2E6iORnyhO_UjmdSGTLrbURfgg8oYpcHUtKU=EokPtQ@mail.gmail.com">
<div dir="ltr">Kirk,
<div><br>
</div>
<div>Had the same thing happen to me on a commercial ballasted
system installed back in 2004. Had to be moved around to allow
installation of a new roof system. Replaced all the ballast in
2017. I'm located in Western NY, thus the same weather you
see. The blocks were on a stainless steel pan of which the
array was attached to. I've plenty of ideas as to why they
broke down but no real evidence. I expect it to happen again.
Does make me wonder about the new ballast systems that still
call out for the blocks as ballast. Perhaps poly sand bags?</div>
<div><br>
</div>
<div>Christopher</div>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Wed, Jun 27, 2018 at 4:20 PM, Kirk
Herander <span dir="ltr"><<a
href="mailto:vtsolar@icloud.com" target="_blank"
moz-do-not-send="true">vtsolar@icloud.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div link="blue" vlink="purple" lang="EN-US">
<div class="m_-3312019715009331861WordSection1">
<p class="MsoNormal"><span style="font-size:14.0pt">All,</span></p>
<p class="MsoNormal"><span style="font-size:14.0pt">I
have a 6 year old ballasted roof system in which
about 50% of the solid cap blocks(16\u201dL x 8\u201dw x 4\u201dD)
are cracked and crumbing, some are close to rubble.
I assume it was a bad batch, but has anyone seen
this before? What might be the preventive remedy in
the future? A coating of some sort?</span></p>
<p class="MsoNormal"><span style="font-size:14.0pt"> </span></p>
<p class="MsoNormal"><b><span style="font-size:12.0pt">Kirk
Herander</span></b></p>
<p class="MsoNormal"><b><span style="font-size:12.0pt">Owner|Principal,
VT Solar, LLC </span></b></p>
<p class="MsoNormal"><b><i><span
style="font-size:12.0pt">Celebrating our 27<sup>th</sup>
Anniversary 1991-2018</span></i></b></p>
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href="http://www.vermontsolarnow.com"
target="_blank" moz-do-not-send="true"><span
style="color:blue">www.vermontsolarnow.com</span></a></span></b></p>
<p class="MsoNormal"><span style="font-size:12.0pt">dba
Vermont Solar Engineering</span></p>
<p class="MsoNormal"><span style="font-size:12.0pt">NABCEP<sup>TM
</sup>2003 Inaugural Certificant</span></p>
<p class="MsoNormal"><span style="font-size:12.0pt">VT
RE Incentive Program Partner</span></p>
<p class="MsoNormal"><span style="font-size:12.0pt">802.863.1202</span></p>
<p class="MsoNormal"><span style="font-size:14.0pt"> </span></p>
<p class="MsoNormal"><span style="font-size:14.0pt"> </span></p>
<p class="MsoNormal"><span style="font-size:14.0pt"> </span></p>
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<p style="text-align:center"><span
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