The most common application for galvalume steel is in roofs with simple profiles, for example, the standing beam style. The staining will spread over time, typically in a spider web fashion. These cracks collect moisture, and eventually, rust can settle into the fissures creating discoloration. This staining occurs because galvalume steel tends to form tiny cracks when it is bent or formed. The combination of aluminum and zinc in the material make it weaker, especially on cut edges.Īnother potential area of concern is what is referred to as tension bend staining. One important downside to galvalume steel is how easily it scratches. In addition to its industrial, commercial look, there are a few other drawbacks to galvalume steel that must be considered. It is important to understand that while steel is economical and lasts longer than traditional roofing materials, it is not likely to last a lifetime like some other metal roofing options.
Galvalume steel is resistant to corrosion, but unlike aluminum, it will eventually rust. Many times, galvalume steel has an industrial look due to its often unpainted, shiny metallic finish. Galvalume steel is a material comprised of carbon and iron, then coated with an aluminum/zinc alloy. Recycled Content: 95% recycled content on average.Standing Seam and Heavy Tile: 0.032” and up Thickness: Shingle, Shake, and Tile: 019” and 0.024”.Disadvantages: More expensive than steel.
Aluminum, unlike steel, is corrosion and rust resistant. This sturdy, yet lightweight material is an optimal choice for residential roofing applications. Learn more about our unique metal roof types below. You ’re sure to find the right style and color for your home or business. At McCarthy Metal Roofing, we have a variety of unique metal roof colors and styles available to you. You really need to see this panel up close to appreciate the beauty and authenticity of this paint finish.Metal roofing is an extremely versatile roofing solution for your home or business. If you are interested in this color I would highly recommend requesting a standing seam sample panel in Green Copper®. You eliminate all of these problems by using Green Copper® instead of real copper panels. With real copper wall panels you would have to pre-weather it and than seal it. It is a perfect solution for an interior application as it arrives looking patina'd. Green Copper® can be used in exterior or interior applications. Standard Paint Warranty With Green Copper®.Green Copper® is a painted product so you will NOT have these problems. Run off from real copper roofing will stain the surrounding areas.You don NOT have to wait for it to patina. Green Copper® arrives looking patina'd.Cost savings of 60 % to 75 % when compared to real corrugated copper.The four main advantages in using Green Copper® when compared to real copper roofing are: