Frequently Asked Questions
The following questions reflect the most common technical concerns raised by roofing and building material manufacturers. These customers typically focus on durability comparison with galvanized steel, environmental suitability, and forming performance.
How is Galvalume different from galvanized steel?
Galvalume uses an aluminum-zinc alloy coating, while galvanized steel uses pure zinc. The aluminum component provides improved barrier protection, especially in atmospheric exposure conditions.
Is Galvalume better for coastal environments?
In many coastal or high-humidity environments, Galvalume offers improved corrosion resistance compared to standard galvanized steel, though extreme marine conditions may still require additional protection.
Does Galvalume perform well in roll forming?
Yes. When proper forming radii are respected, the coating maintains good adhesion and surface stability during roll forming.
What is the typical coating designation for GL?
Common coating designations include AZ150 or AZ55, indicating total coating weight per unit area.
Galvalume uses an aluminum-zinc alloy coating, while galvanized steel uses pure zinc. The aluminum component provides improved barrier protection, especially in atmospheric exposure conditions.
In many coastal or high-humidity environments, Galvalume offers improved corrosion resistance compared to standard galvanized steel, though extreme marine conditions may still require additional protection.
Yes. When proper forming radii are respected, the coating maintains good adhesion and surface stability during roll forming.
Common coating designations include AZ150 or AZ55, indicating total coating weight per unit area.
Available Services
Precision slitting
Matches coil width to equipment requirements, Reduces trimming waste and improves line efficiency
Cut-to-length processing
For panel fabrication or custom sheet supply, provides exact sheet dimensions
Edge protection packaging
For long-distance sea freight, protects exposed coil edges from mechanical damage
