Average Lifespan of a Commercial Metal Roof
A metal roof in the UK can last roughly 50-70 years. However, this lifespan is largely determined by factors like the quality of the installation, routine maintenance, and the environmental conditions the roof is exposed to, such as moisture and temperature fluctuations.
The most common types of metal that are used in commercial roofing are steel, aluminium, zinc, and copper. Galvanised or coated steel is also widely used in the UK due to its strength and cost-effectiveness. Steel roofs can typically last up to 50 years when they are correctly installed and maintained. On the other hand, aluminium, zinc, and copper roofs generally last between 60-70 years, due to their inherent resistance to corrosion and weather-related deterioration.
What Can Affect The Lifespan Of Your Metal Roof
The type of metal the roof is made from can play a role in determining the roof's overall lifespan. Galvanised steel is commonly used for commercial roofs, and it typically lasts between 40 and 50 years. Aluminium is often used in coastal or industrial areas due to its corrosion resistance, and it can last up to 50-70 years.
However, even the most durable materials will deteriorate if the roof isn't installed correctly. Poor workmanship can lead to gaps, leaks, or improper drainage, all of which can shorten the roof’s lifespan. Therefore, it's crucial to hire qualified, experienced roofing contractors who follow the manufacturer's guidelines and building regulations.
Heavy rain, strong winds, and constant freezing and thawing can all take a toll on your roof over time. If you’re near the coast, the salty air can cause the roof to corrode, and in cities, higher pollution levels and acidic rain can also cause wear and tear. By choosing the right roofing material and applying protective coatings, you can keep your roof strong and durable for longer.
How Climate and Weather Can Impact Roof Lifespan
While metal roofs are known for their durability and weather resistance, prolonged exposure to certain weather patterns can gradually degrade their performance and longevity over time.
Moisture can accelerate the roof's corrosion, especially if the roof's protective coatings have deteriorated or if water begins to pool due to poor drainage. Although most metal roofs are treated with anti-corrosive finishes, constant exposure to damp weather can reduce their effectiveness.
Freeze-thaw cycles, especially in colder areas, can also impact the lifespan of your metal roof. When water seeps into small gaps in the roofing and freezes, it expands, which can cause small structural shifts within the material. Repeated freeze-thaw cycles can eventually cause the metal roof to develop cracks, leaks, or weakened joints.
Maintenance Tips to Extend the Life of a Metal Roof
One of the simplest ways to expand the lifespan of your metal roof is by scheduling a maintenance service at least twice a year. These regular check-ups let you spot small issues, like rust, cracks or damaged panels, before they turn into bigger problems.
Leaves, dirt, moss, and other debris can retain moisture on your metal roof, which can lead to corrosion over time. Giving your roof a gentle clean with a soft brush or a low-pressure washer can help you prevent water damage and keep your roof in good condition.
Our commercial metal roof installations are guaranteed to be durable, long-lasting and tailored to your building’s needs. Our experts use high-quality materials and deliver reliable, cost-effective roofs that can protect your business for decades.
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