Roof Replacement and
Roof Repair Specialist(703) 475-2446
September 21, 2011 by - 0 Comments
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A copper roof may seem like an expensive choice, but when you divide it out over the number of years that it lasts, it really can be cost effective. In addition, copper provides a beautiful color to accent your home’s design.
Many people choose copper roofs for their color. The warm tones of copper roofs start gradually turning color right after the first rainfall as the acid in rain affects it. This patina is a thin film of color that comes from the oxidation of copper over time. A copper roof that doesn’t get as much impact of rain can last hundreds of years, such as the roof on Chartres Cathedral. In places on the roof where there is more rain flow, such as valleys, those parts can last up to 50 years. The color will gradually change from new copper to deeper browns and by the fourth year it begins to acquire a slight greenish tinge. This becomes progressively greener and lighter by 30 years. Unlike rust, which is the oxidation of iron, the patina of copper bonds tightly to the good copper protecting it from corrosion.
Many times copper roofs have built in copper gutters. These may not last as long as the roof because the erosion from constant flow of water may retard development of protective patina. Roof repair is usually not needed as much with a copper roof because of its durability. Putting on a copper roof means your house will look beautiful for many years.
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