[RE-wrenches] solar hot water penetration flashing

[Nik Ponzio]

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.

Does anyone have a source for these now?

Thanks in advance.


--
Nicholas Ponzio
NABCEP Certified Photovoltaic Installer

Building Energy
1570 South Brownell Road
Williston, VT 05495
t: 802-859-3384 x15
f: 802-658-3982
c: 802-365-1973
www.BuildingEnergyVT.com


On Wed, Dec 10, 2008 at 9:24 PM, Karl Schwingel <karl at northwindrenewable.com
> wrote:

> 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.
> where can I get the coolie cap style brazed copper flashings?
>
> karl
>
> Todd Cory wrote:
>
>> 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.
>>
>> Todd
>>
>>
>>
>>
>> troy Harvey wrote:
>>
>>> 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?
>>>
>>> Troy Harvey
>>> ---------------------
>>> Heliocentric
>>> 801-453-9434
>>> taharvey at heliocentric.org <mailto:taharvey at heliocentric.org>
>>>
>>>
>> ------------------------------------------------------------------------
>>
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>
> --
> Karl Schwingel
> NABCEP Certified Solar Thermal Installer
> NorthWind Renewable Energy LLC
>
> PO Box 723 Stevens Point, WI 54481
> Karl at Northwindre.com
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> Fax : 715 952 4501
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