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Copper roofs can last 100 years or more, so you’re likely never to need another replacement. Regular maintenance, including annual inspections and occasional cleaning, keeps them in top shape. Work with a licensed roofer for any repairs or inspections to be sure the roof stays watertight and performs as expected.

Cleaning a copper roof averages $460, sealing costs an average of $3 per square foot, and broader repairs cost an average of $6,500.While those figures may seem steep compared to simple maintenance, they’re still far less than the cost of a complete replacement. Staying on top of annual cleanings and quick fixes helps keep costs down and allows the roof to reach its 100-year lifespan.

That green hue is a natural patina that forms as copper reacts with air and moisture. In coastal areas, it can appear in five to seven years; in dry regions, it may take up to 14. The patina shields the copper, so letting it develop is perfectly fine. If you prefer the shiny look, you can have a pro apply a clear sealant and recoat it as needed.

You can paint a copper roof, but it will block the natural patina and may shorten the roof’s lifespan. Once paint goes on, future upkeep becomes more involved—you’ll need to scrape and repaint every few years. Most homeowners skip painting and opt for cleaning or a clear sealant to keep the copper looking its best.

Copper holds up well in nearly every climate. In a humid region, it naturally resists fungus, moss, and algae. In snowy or windy areas, it sheds precipitation and stays firmly in place, as long as it’s installed with room to expand and contract. That flexibility helps the roof stay leak-free through temperature swings and harsh weather year after year.