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Attaching copper pipe to galvanized roofing for solar water heater

April 11, 2011

I am planning to construct a unit to heat water consisting of corrugated metal roofing with copper pipe attached (soldered?) to it. I am trying to find out how best to treat the
surfaces and connect the materials so that they will for a cohesive bond.
I had made a solar collector before, but it was destroyed in a forest fire that also burned my home. I am trying to re-create this but do not remember some of the specifics of the construction as it was quite a few years ago. I plan to paint the collector black when it is finished, so would like the surface to be able to have the paint "stick" to it. Laurel in Butte County, Calif.

Laurel Paulson-Pierce
home owner - Concow, California, USA

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