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<DIV><FONT face=Arial size=2>The coolie caps are really just regular
(oversized) caps which have been punched out to snugly accommodate the
pipe to be sealed. Tom Lane's book, Solar Hot Water Systems, Lessons Learned
..., addresses this sealing method and many more. AET Solar in
Jacksonville, FL stocks this item as well as almost anything solar thermal
you could want.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>One solution for exposed rubber or (more precisely)
the filler bushing seal on the combination metal / flexible insert
seal Oatey style flashings is paint. One meticulous homeowner had done that
on his '80's vintage system and the flexibility of the seal was just like new.
He identified it as latex paint. I would want to be very sure that whatever I
used on that flexible material was compatible for many many years since unlike a
typical plumbing flashing which can be relatively easily replaced by simply
inserting the seal over the end of the vent, the loop of pipe, common with
SDHW does not allow that luxury.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Bill Loesch</FONT></DIV>
<DIV><FONT face=Arial size=2>Solar 1 - Saint Louis Solar</FONT></DIV>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=nponzio@buildingenergyus.com
href="mailto:nponzio@buildingenergyus.com">Nik Ponzio</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=re-wrenches@lists.re-wrenches.org
href="mailto:re-wrenches@lists.re-wrenches.org">RE-wrenches</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Wednesday, June 09, 2010 10:05
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [RE-wrenches] solar hot
water penetration flashing</DIV>
<DIV><BR></DIV>This is an on-going problem, apparently. We were getting the
coolie cap fittings from EFI but they got out of the solar business
recently.<BR><BR>Does anyone have a source for these now?<BR><BR>Thanks in
advance.<BR><BR><BR clear=all>--<BR>Nicholas Ponzio<BR>NABCEP Certified
Photovoltaic Installer<BR><BR>Building Energy<BR>1570 South Brownell
Road<BR>Williston, VT 05495<BR>t: 802-859-3384 x15<BR>f: 802-658-3982<BR>c:
802-365-1973<BR><A
href="http://www.BuildingEnergyVT.com">www.BuildingEnergyVT.com</A><BR><BR><BR>
<DIV class=gmail_quote>On Wed, Dec 10, 2008 at 9:24 PM, Karl Schwingel <SPAN
dir=ltr><<A
href="mailto:karl@northwindrenewable.com">karl@northwindrenewable.com</A>></SPAN>
wrote:<BR>
<BLOCKQUOTE class=gmail_quote
style="PADDING-LEFT: 1ex; MARGIN: 0pt 0pt 0pt 0.8ex; BORDER-LEFT: rgb(204,204,204) 1px solid">I
use similar boots, and design the penetration so the insulation and wrap (
we use aluminum) nearly cover the whole boot by the time you're all done.
you're left with about 1/2" of boot showing all the way around.
<BR>where can I get the coolie cap style brazed copper
flashings?<BR><BR>karl<BR><BR>Todd Cory wrote:<BR>
<BLOCKQUOTE class=gmail_quote
style="PADDING-LEFT: 1ex; MARGIN: 0pt 0pt 0pt 0.8ex; BORDER-LEFT: rgb(204,204,204) 1px solid">
<DIV>
<DIV></DIV>
<DIV class=h5>I use accordion style rubber boots. These are typically
attached to the roofing with a bead of silicone underneath and gasketed
metal roofing screws on top. These are made for all kinds of metal roof
penetrations and I have even seen them used for 6" metalbestos stove
flues. One note of caution, the orange "high temperature" ones are (I
think) rated only to 180 degrees F. so you want to make sure the SHW fluid
never exceeds this. Also in time, like any rubber flashing on a roof the
rubber will deteriorate from UV. I build a show shed over my system's
plumbing which shades it so hopefully this will not be in issue in ~20
years.<BR><BR>Todd<BR><BR><BR><BR><BR>troy Harvey wrote:<BR></DIV></DIV>
<BLOCKQUOTE class=gmail_quote
style="PADDING-LEFT: 1ex; MARGIN: 0pt 0pt 0pt 0.8ex; BORDER-LEFT: rgb(204,204,204) 1px solid">
<DIV>
<DIV></DIV>
<DIV class=h5>Any thoughts on how to flash a copper pipe roof
penetration on a metal roof. The brazed copper flashing we typically use
would cause corrosion with the steel roof I'm afraid. WHat have others
used in this situation?<BR><BR>Troy
Harvey<BR>---------------------<BR>Heliocentric<BR>801-453-9434<BR></DIV></DIV><A
href="mailto:taharvey@heliocentric.org"
target=_blank>taharvey@heliocentric.org</A> <mailto:<A
href="mailto:taharvey@heliocentric.org"
target=_blank>taharvey@heliocentric.org</A>><BR><BR></BLOCKQUOTE><BR>------------------------------------------------------------------------
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