Slate roofs are renowned for their exceptional longevity, often lasting 75 years or more, making them the gold standard in roofing. However, if you've purchased a home with a 50-75-year-old slate roof that has suffered from deferred maintenance or poor repairs, you'll need a quality-oriented slate specialist.

Why a specialist and not a general roofer? Much like doctors, general roofers have broad knowledge, but complex slate roof systems demand the specialized expertise and years of experience that only a slate specialist possesses. Often, the slate tiles themselves are the last component to fail; it's typically the nails and copper or tin roof flashings that deteriorate first.

Repairing slate is generally affordable until these metal flashings begin to fail significantly. Addressing isolated areas of failing flashing is a smart way to extend the roof's lifespan. However, when multiple or all metal flashings reach the end of their useful life, a full replacement or a substantial budget for extensive repairs becomes a more sensible approach.