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Old August 9th, 2006, 12:03 AM   #1
Marcanadian
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Copper Roofs

Many older buildings tend to have copper roofs. Some are brown, which is its state before it oxidises when it then turns green. The same thing happens to an old penny that has been exposed to the outdoors for long periods of time.

In this thread I want to post some examples of copper roofs around the World. Posting buildings with green and brown roofs would be great as well. I'll start off.

Old City Hall, Toronto



Commerce Court North, Toronto


Royal York Hotel/Union Station, Toronto


Queen's Park, Toronto



Parliament Buildings, Ottawa



Chateau Laurier, Ottawa



Lord Elgin, Ottawa


Supreme Court, Ottawa


Chateau Frontenac, Quebec City
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Old August 9th, 2006, 12:14 AM   #2
Omega
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what is the advantage of having a copper roof? disadvantage? Do you need constant maintenance? is it expensive?
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Old August 9th, 2006, 02:24 PM   #3
Judazzz
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One of my favorite copper-roof buildings, the Rathaus in Hannover, Germany:





And Hannover's first ' skyscraper', the Anzeigerhochhaus:




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Old August 9th, 2006, 11:16 PM   #4
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It's amazing how different a roof colour can make a building look. Old City Hall in TO looks so different!
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Old August 10th, 2006, 05:16 AM   #5
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I actualy like them better when they turn green.
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Old August 11th, 2006, 07:25 AM   #6
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Ive heard that there was some disagreement about cleaning the parliament building and the east and west block, because the people recognized the green roofs and the buildings would loose their identity if they were brown...interesting argument, dunno if theres damage done if you leave the copper dirty.
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Old August 11th, 2006, 09:10 AM   #7
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I remember the debate about that too. You could paint them green after replacing them. How long does it take to corrode? 20-25 years?
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Old August 11th, 2006, 09:06 PM   #8
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At least 20 years.
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