Copper and Slate roofing

Copper Roofing | FAQ

Copper Roofing | Frequently Asked Questions

General Questions

  • How long does a copper roof last?

    Copper roofs can last from 60 to over 100 years, making copper one of the most durable roofing options available. The lifespan of a properly installed copper roof primarily depends on the amount of water it is exposed to, as well as the thickness and hardness of the copper material.
    While copper roofs develop a protective coating, the green oxidized patina seen on old copper roofs can be worn away by water running consistently over the surface, which can then erode the copper metal. At about 60 years of age, copper roofing will develop pinholes below slate and tile roofs, where water tends to drip repeatedly onto one area of copper.
    Copper valley flashings will wear through the center of the valley, near the lower end of the valley. Long roof valleys will wear through sooner than short valleys as they carry more water.
    Copper roofing will also wear through at the edge of parallel folded or lapped seams.
    Copper roofing and flashings are also adversely affected by acidic tannins leaching from some cedar and oak tree species.

  • How much does a copper roof cost?
    Installed cost ranges from $20 to $40+ per square foot, depending on the complexity of the roof and design details.  

    The cost of simple, small copper roofs—such as those for bay windows, entryways, and awnings—typically ranges from $2,500 to $4,500. For roof dormers, the price can vary from $4,500 to $9,000. Larger and more complex copper roofs, like the curved porticos found on the front of elegant homes in Shaker Heights, may cost between $12000 and $16000 for installation. For an entire house roof, the cost can range from $ 35,000 to $ 125,000 or more.

    Curved roofs, steep roofs, multiple gables, multiple chimneys, and various valleys are design features that increase costs. Details such as swept eave ends, chimney transitions, traditional double-locked standing seams, custom-fabricated copper shingles, and custom eave and rake moldings also contribute to the overall expense of a copper roof. However, these elements enhance its beauty, longevity, and appeal. 

    Replacing existing copper roofs can be more expensive than the prices mentioned above. If the current roof has undergone multiple repairs, has sustained damage from leaks, or has been covered with newer roofing materials, the costs for removal and repairs can increase significantly.