[RE-wrenches] solar hot water penetration flashing

[Karl Schwingel]

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
Cell: 715 209 0446
Fax : 715 952 4501


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