Copper roofing is prized for its durability and aesthetic appeal, but like any material, it can experience seam failure over time. Seam failure in copper roofing typically occurs due to thermal expansion and contraction, which causes metal sheets to move and stress the joints. Improper installation, insufficient fastening, or poor soldering and seaming techniques also contribute to these issues. Weather exposure can worsen the problem by causing oxidation around the seams, weakening the joints. Simple diagnostics for homeowners include visually inspecting the seams for gaps, lifting edges, or signs of corrosion, especially after extreme weather or seasonal changes. You can safely check for leaks inside your attic during a rainstorm or after, noting any damp spots near seams.
If you find suspect areas or leakage, it’s best to call a professional roofer experienced with copper materials. Repairs often involve resealing, re-soldering, or replacing damaged seam sections—these tasks require specialized tools and skills to maintain the metal’s integrity and warranty. When contacting a contractor, ask if they are familiar with copper roofing specifics and if they use compatible soldering materials that won’t void your roof’s warranty. Also, inquire about their approach to thermal movement issues—are they reinforcing seams to accommodate expansion? These questions help ensure a repair that lasts and preserves both the beauty and function of your copper roof.