How Long Does a Metal Roof Last?: Understanding the Lifespan of Metal Roofs

Metal roofs are gaining popularity among homeowners due to the numerous advantages they offer. Despite these advantages, installing a new roof is a substantial investment, so being well-informed is crucial. A common question homeowners have regarding metal roofs is about their lifespan. Many factors affect the lifespan of a metal roof. 

How long does a metal roof last on average? 

One of the biggest advantages of metal roofs is their durability. Therefore, you can anticipate a metal roof to have a longer lifespan compared to other roofing options. Metal roofs can last 30 to 70 years, outliving other roof options by decades. However, this lifespan can vary based on several factors. 

Different types of metal roof materials and their lifespan 

• Aluminum: Up to 40 – 60 years Aluminum stands out as a cost-effective choice for metal roofing. Aluminum is resistant to rust and corrosion, addressing one of the common concerns associated with metal roofs. As a result, it has the potential to last over 40 years with ease. Particularly in coastal areas, aluminum is an excellent choice for its resistance to corrosion from moisture and saltwater. Being rust-proof, aluminum is less susceptible to staining or discoloration and requires minimal maintenance. As for the drawback, aluminum is very lightweight and soft, making it susceptible to denting.
• Steel: Up to 40 – 70 Years Steel is another very common roofing material known for its affordability. It’s also one of the strongest roofing materials out there. So, steel roofs can easily last 40 to 70 years with regular maintenance. Unfortunately, steel is prone to rusting which necessitates more frequent inspection and maintenance. Therefore, applying a high-quality paint coating is crucial for extending the lifespan of steel roofs.
• Zinc: Up to 50 – 100 years Zinc is known for its durability, corrosion resistance, and longevity. It has superior longevity compared to aluminum and steel, making it increasingly popular. Zinc can self-heal through galvanic action, which allows oxidation to repair minor scratches or dents easily. This self-healing ability significantly reduces the need for maintenance over time.
• Copper: Up to 60 – 100 years Copper is considered the longest-lasting material on this list, with an expected longevity of 100 years. It can last hundreds of years with favorable weather conditions and regular maintenance. Like Zinc, Copper also develops a verdigris patina by atmospheric oxidation, which protects the metal and eliminates the need for additional painting or coating. However, Copper is a soft metal and prone to denting. So, if you have frequent hailstorms in your region, falling debris can decrease the aesthetic appeal of copper roofs.

Factors affecting the lifespan of a metal roof 

The average lifespan of metal roofs is 30 to 70 years. However, there are a few factors that can affect longevity.

1. Maintenance: One of the biggest advantages of metal roofs is the low maintenance. Just checking the surface a few times a year and clearing the debris and gutters should keep your roof fine. Also, ensure protective coatings are applied timely to safeguard your roof from rusting and weather conditions.
2. Weather condition: Weather plays a big role in determining the longevity of your metal roof. However, living in areas prone to heavy winds, thunderstorms, or snowfall can impact the roof’s longevity. That’s why choosing a suitable roofing metal is very important.
3. Installation: Installation is the most important aspect of determining the longevity of your metal roof. Faulty installation can lead to leaks and cracks, shortening the roof’s lifespan. It is the roofer’s responsibility to ensure proper installation without damaging the metal panels. These panels come with a protective finish. If damaged, the protective layer can be compromised, exposing the metal to moisture and leading to rust. 

Long Island Roof Repair Pros: Elevate your roof with metal 

As you have seen, metal roofs have several benefits and last decades, but proper installation is essential to get the best out of your metal roof. At Long Island Roof Repair Pros, our team of roofing experts is here to assist you in selecting the ideal roofing option and ensuring its reliable installation. Call us today at 516-271-4177, and let’s start building the roof of a lifetime!