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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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copper roof above dormer tarnished polishing
We moved into a new house that has copper roof above 2 dormers. It is
tarnished and weathered (about 8 years old). I have seen similar roof adornments in the Raleigh, NC area that absolutely shine, and I like the look. How does one go about polishing, and retaining the shine? Thanks, Jeff copper roof above dormer tarnished polishing |
#2
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copper roof above dormer tarnished polishing
You don't. A copper roof is supposed to turn brown and then slowly turn
a light blue/green over the years. You can wash it in venegar and salt every few months to get some copper color back but that just delays the inevitable. Jeff Klein wrote: We moved into a new house that has copper roof above 2 dormers. It is tarnished and weathered (about 8 years old). I have seen similar roof adornments in the Raleigh, NC area that absolutely shine, and I like the look. How does one go about polishing, and retaining the shine? Thanks, Jeff copper roof above dormer tarnished polishing -- Glenn Ashmore I'm building a 45' cutter in strip/composite. Watch my progress (or lack there of) at: http://www.rutuonline.com Shameless Commercial Division: http://www.spade-anchor-us.com |
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copper roof above dormer tarnished polishing
"Glenn Ashmore" wrote in message news:3VEPb.23803$Mb7.10129@lakeread04... You don't. A copper roof is supposed to turn brown and then slowly turn a light blue/green over the years. You can wash it in venegar and salt every few months to get some copper color back but that just delays the inevitable. Unless you want a lot of maintenance. Most people won't do it, and most people like the normal copper patina process. |
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copper roof above dormer tarnished polishing
In article 3VEPb.23803$Mb7.10129@lakeread04,
Glenn Ashmore wrote: top-post moved to bottom, where it belongs Jeff Klein wrote: We moved into a new house that has copper roof above 2 dormers. It is tarnished and weathered (about 8 years old). I have seen similar roof adornments in the Raleigh, NC area that absolutely shine, and I like the look. How does one go about polishing, and retaining the shine? Thanks, Jeff copper roof above dormer tarnished polishing You don't. A copper roof is supposed to turn brown and then slowly turn a light blue/green over the years. You can wash it in venegar and salt every few months to get some copper color back but that just delays the inevitable. Incorrect. You polish the bejeezus out of it, then you seal it with a clear finish to prevent air exposure. Depending on the quality of the sealing material used, it might last 5-10 years between applications. Properly done, a copper roof can keep its shine for a long time, and never show a hint of either brown (sulphides in the atmosphere are the cause there, if I recall rightly) or green/blue (chlorides, sulfates, and oxides would be the bad guys in this case) or lose the desirable shine. The critical concept is "done right", which ain't quick, easy, or cheap. And although it will last for quite a while, it will eventually fail, and you'll be back to a brown/green/blue mess if you don't repeat the process periodically. The huge majority of people don't have the time, money, or motivation to "keep up with it" properly, so the common (mis-)perception is that it simply isn't possible at all, which is patently false. Personally, I prefer the green/blue weathered look. Just watch out for copper sulphate trying to kill the plants near the downspouts... -- Don Bruder - --- Preferred Email - SpamAssassinated. Hate SPAM? See http://www.spamassassin.org for some seriously great info. I will choose a path that's clear: I will choose Free Will! - N. Peart Fly trap info pages: http://www.sonic.net/~dakidd/Horses/FlyTrap/index.html |
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