Choosing between overlaying copper roofing and doing a full tear-off depends on the condition of the existing roof and the specific circumstances of your home. Copper roofing is prized for its durability and long lifespan, often lasting over 50 years with proper care. Overlaying means installing the new copper directly over the old roof material, which can save time and money initially. However, this approach is only advisable if the underlying roof is in good shape, dry, and structurally sound. If there’s any significant damage, rot, or moisture trapped beneath, overlaying could trap issues that worsen over time and potentially void manufacturer warranties. A simple DIY check involves inspecting your attic or crawl space for signs of leaks, water stains, or mold, and gently probing accessible areas of the old roof for softness or weakness. If you notice any of these warning signs, a tear-off is usually the safer option to ensure a solid foundation for your copper roof.
Calling a professional roofer who specializes in copper is wise if you’re uncertain about the roof’s condition or the best installation method. When consulting a contractor, ask specifically how they assess the existing roof’s condition and whether they recommend a full tear-off or overlay for your situation. It’s also very important to inquire about how each option affects the copper warranty, as some manufacturers require complete removal of the old roof before installing new copper to keep warranties valid. The roofer should be transparent about potential risks, costs, and the expected lifespan for both options. This information will help you make a well-informed decision, balancing upfront investment with long-term roofing performance and protection.