How Long Does a Metal Roof Last?

Replacing a roof is a significant investment, so choosing a roof that will last for decades is important. As homeowners look for ways to get the most out of their investment, it's no surprise that residential metal roofing continues to grow in popularity.

But how long can you expect a metal roof to last, and what makes it a good long-term investment?

What Is the Life Expectancy of a Metal Roof?

Metal roofs can last 50 to 60 years, outlasting a shingle roof by decades. For many homeowners, that means a metal roof could be the last roof they purchase.

Metal roofs also resist shrinking, erosion, and cracking, and they can perform well in extreme weather, including heavy snow and hail, when properly designed and installed. This durability means that metal roofing generally requires less maintenance and fewer replacements than traditional roofing materials. A yearly inspection and occasional maintenance can help keep a metal roof in good condition.

How Does the Life Span of a Metal Roof Compare to Shingles?

Asphalt shingles are one of the most commonly used roofing materials because of their lower upfront cost. However, lower upfront costs can be offset by a shorter lifespan and more frequent replacement expenses. Shingle roofs can be susceptible to deterioration, moisture-related damage, and high-wind damage. Compared with reflective metal roofing, traditional asphalt shingles may also offer fewer energy efficiency benefits. Maintenance needs vary depending on the climate and surrounding conditions.

For a closer look, explore the advantages of metal roofing versus shingles.

What Do Roofing Experts Say About Metal vs. Shingles?

The Metal Roofing Alliance estimates the lifespan of asphalt shingles at 10 to 20 years before they need replacement. As an asphalt roof ages, it may require more frequent repairs, shingle replacement, and re-caulking or sealing.

Experts in the field agree. McElroy Metal interviewed John Wilusz of Advanced Metal Roofing, and his stance on the wisdom of this investment was clear. He shared, "If we're playing the long game, metal is the clear winner." He also pointed to longevity, saying, "You're not just buying a roof; you're making a one-time investment for the next half-century."

For a more technical look at metal roof service life, explore this report overview from the Metal Construction Association, which examines low-slope, unpainted standing seam steel roof systems.

What Makes Metal Roofs Last So Long?

Metal roofs have a reputation for lasting decades, sometimes longer than a homeowner's mortgage. But what makes them last? While the metal panels themselves are durable, the entire metal roofing system includes components designed to work together to protect your home from the elements.

Metal roofs can withstand weather that may damage other roofing materials, including wind, hail, and snow.

Many metal roofing products also achieve a Class 4 impact-resistance rating, the highest classification under UL 2218. McElroy Metal offers more than two dozen steel roofing profiles with this rating, although it doesn't mean a roof is hail-proof.

What Should You Consider When Choosing a Metal Roof?

When planning your roofing project with longevity in mind, consider the whole picture. Choosing the right materials and ensuring proper installation are essential to getting the longest possible life from your roof.

It's important to choose a substrate and paint system that match your long-term performance expectations. For many residential applications, McElroy Metal recommends a Galvalume® substrate paired with a high-performance PVDF paint system formulated with a Kynar 500® resin-based coating. The Galvalume® substrate provides corrosion resistance, while the PVDF paint system resists fading and chalking, keeping your roof looking good for decades.

However, the right materials can vary depending on your location, particularly in coastal areas or other environments where corrosion may be a concern.

Is a Metal Roof Worth the Investment?

If you're planning a roof replacement, consider this an opportunity to invest in a roofing system that can last for decades. While metal roofing generally costs more upfront than asphalt shingles, its longer lifespan and lower maintenance requirements can help save money over time while reducing the inconvenience of future roof replacements.

The best way to make sure you're choosing the right materials is to work with a trusted contractor who can help you select the right products for your home. We can help you find one.

Kynar 500® is a registered trademark of Arkema Inc.