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What Is Galvalume Steel and How Is it Used in Metal Roofing?

Mar 05, 2024

What Is Galvalume Steel and How Is it Used in Metal Roofing? 

Metal roofing has become increasingly popular in recent years due to its durability, longevity, and aesthetic appeal. Among the various materials used for metal roofing, Galvalume steel stands out as a top choice. Let’s explore what Galvalume steel is and how it is utilized in the construction of metal roofs. 

Understanding Galvalume Steel 

Galvalume steel is a corrosion-resistant alloy that combines the strength of steel with the anti-corrosive properties of zinc and aluminum. The name “Galvalume” is derived from the combination of “galvanized” and “aluminum.” This unique alloy is created by coating steel with a mixture of 55% aluminum, 43.4% zinc, and 1.6% silicon. The result is a material that not only provides exceptional strength but also offers superior resistance to rust and corrosion. 

Benefits of Galvalume Steel in Metal Roofing 

Galvalume steel offers a wide array of advantages when it comes to roofing. These include: 


Galvalume steel’s composition gives it a high level of durability, making it resistant to the elements. This means that a metal roof constructed with Galvalume steel can withstand harsh weather conditions, including heavy rain, snow, and UV radiation. 

Corrosion Resistance 

The primary advantage of Galvalume steel is its excellent resistance to corrosion. This is particularly crucial in regions with high humidity or proximity to saltwater, where traditional steel might be more prone to rusting. 


Metal roofing, in general, is known for its long lifespan, and the addition of Galvalume steel further extends this longevity. Galvalume-coated metal roofs can last for several decades, requiring minimal maintenance over the years. 

Energy Efficiency 

Metal roofs, including those made with Galvalume steel, are known for their reflective properties, helping to reduce heat absorption and energy costs. This can contribute to a more energy-efficient home or building. 

How Metal Roofing Contractors Utilize Galvalume Steel 

Metal roofing contractors play a crucial role in the installation and maintenance of metal roofs, and their expertise is especially important when working with materials like Galvalume steel. Here’s how they utilize this material: 

Installation Expertise 

Metal roofers are trained to work with various materials, including Galvalume steel. They possess the knowledge and skills to install metal roofs efficiently and effectively, ensuring that the roof is both aesthetically pleasing and structurally sound. 


Metal roofers can customize metal roofs to suit the specific needs and preferences of the property owner. Whether it’s the color, profile, or style of the metal roof, contractors can tailor the design using Galvalume steel to achieve the desired look. 

Maintenance and Repairs 

While metal roofs are low-maintenance, occasional repairs or inspections may be necessary. Metal roofing contractors are equipped to handle any issues that may arise, ensuring the longevity and performance of the Galvalume steel roof. 

Learn More 

Overall, Galvalume steel is a key player in the world of metal roofing. Its unique composition provides durability, longevity, and corrosion resistance, making it an ideal choice for a reliable and attractive roofing solution. If you are considering this roofing option for your home in Florida, contact Istueta Roofing today. We look forward to discussing your roof replacement needs, style preferences, energy efficiency goals, a budget before installing the best roofing solution for your home. 

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