Galvalume Sheets 101: Benefits, Applications, and Why Licensing Matters!
Unveiling the power of Galvalume sheets: Durability, versatility, and the importance of licensing.
Steel – in every sense tops the world’s usage of metals in different ways. The world’s crude steel production in Jan 2024 was 148.1 million tons as per a press release by Worldsteel.org. You can expect this figure to keep on increasing in the coming years. Galvalume steel sheets have been in the steel picture for many years, but you would be surprised by the lack of knowledge surrounding Galvalume sheets.
This blog will highlight Galvalume's benefits and useful specifications which are important to know!
What does Galvalume Roofing mean?
Galvalume Roofing is a unique material created from a specific mixture of materials.
55% aluminium, 1.6% silicon which is balanced by adding zinc as well. One other name it is known as is ASTM Specification A 792 – and is available in 3 weight categories:
ASTM Designation AZ50 AZ55 AZ60
Single Spot Minimum oz/sq ft 0.43 0.50 0.52
Triple Spot Average Minimum oz/sq ft 0.50 0.55 0.60
For atmospheric corrosion impact, Galvalume is simply the best! Based on 30-year atmospheric experiments, Galvalume sheet can outlast galvanized steel by two to four times in marine, industrial, or other areas. Therefore, compared to aluminum sheets, Galvalume sheet has superior corrosion resistance.
Using a Licensed Galvalume Steel Sheet has its own benefits:
Using Galvalume steel has double the advantages rather than using normal steel in various applications!
Salt Spray Corrosion Resistance: Salt spray is common in coastal areas and makes roof conditions deteriorate faster than normal speed. The coating on the galvalume steel sheet lasts 5 to 10 times longer, rather than the coating on the G90 galvanized, as the cut edges are protected. When the cut edges are exposed and salt spray tests are conducted, the corrosion resistance is typically 3 to 4 times more than that of G90 Galvanized.
High-Temperature Behavior: Bare Galvalume sheets are hugely affected by sun and heat. Galvalume sheets can remain unaffected up to 600°F temperature without discoloration. It can fare well with heavy oxidation and scaling till the temperature reaches 1250°F. The galvalume sheet will also resist base metal change when it is opened to 600°F and prolonged temperatures.
Formability: Galvalume is easily formed in the desired shape as a galvanized sheet. Lock forming and roll forming are also easily executed with galvalume sheets.
Weldability: Galvalume sheets can be easily welded with conventional resistance and arc welding processes. Galvalume resists similarly to galvanized steel when it's welded. It can be welded with a shielded metal arc and gas metal arc processes. The lower zinc content of the coating of Galvalume makes the sheet fume less during arc welding.
Paintability: Pre-painted galvalume sheet is an ideal product for many applications where a painted product requires an aesthetic appearance. Such applications are generally done on pre-engineered metal buildings, architectural panels, roofing and siding and other building components.
Galvalume sheets can be field painted as most paints are suitable for galvanized steel and galvalume steel. Zinc fust primers, butyral wash primers, and acrylic latex paints are often used for field-painting. Galvalume Plus could be painted using water-based acrylic primers or topcoats. The field painting of galvalume could have warranty implications which you might have to get checked through your respective vendor.
Wrapping up,
Overall Galvalume steel sheets are great preventers of corrosion and material deterioration. They are utilized in a wide range of industries, from roofing and siding to automobile manufacture as well as construction. To learn more about Galvalume Steel, contact us to know more about how we can help you gain an edge for perfect roofing systems.