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Metal roofs don’t inherently leak more than shingles, and when properly installed, they can actually offer greater protection against leaks. However, poor installation, improperly sealed fasteners, or thermal expansion issues can lead to leaks over time, so professional installation and regular maintenance are crucial.

While there are many benefits to installing a metal roof on your home, there are some downsides, too. Zinc roofs, in particular, are susceptible to corrosion from overly salty air directly near coastal areas. Another potential downside of zinc roofing is that it must be allowed to expand and contract with the weather. This means special attention is necessary to how it's fastened to the home to avoid issues. 

The lifespan of a roof patch depends on which materials you use and the severity of the damage. Temporary solutions like tarps or plastic sheets last a few weeks to a few months, while roofing tape or caulk may hold up for a year or two. Permanent patches using roofing cement, flashing, or replacement shingles can last several years as long as they're properly maintained. Regular inspections and touch-ups can extend the patch’s lifespan, but eventually, a full repair or replacement would be needed.

Copper roof strips can last for 20 to 30 years or more if properly installed—in many cases, they may outlast your roof. Inspect your roof annually to ensure copper roof strips remain properly adhered and undamaged, and repair any loose or lifted strips. With very little upkeep, copper roof strips can protect your roof for decades to come.