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Drawbacks of Metal Roofs
Jan 26, 2018

Each of these materials also has some drawbacks that should be considered. Steel may rust or corrode, and should not be used near saltwater or very wet areas. Aluminum is a relatively soft metal and tends to dent easily. Copper interacts with oxygen in the air to form a greenish coating known as "patina." While some buyers may like this effect, others consider it a disadvantage. Steel requires repainting every few years to maintain its appearance.

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