Zincalume is one of the most widely used roofing materials on commercial and industrial buildings throughout Australia, yet many property owners have questions about what it actually is, how it performs, and whether it is the right choice for their project. This guide answers those questions clearly, so you can make an informed decision about your Brisbane roofing project.
Arden Projects installs Zincalume roofing across Brisbane and Logan. Get a free quote or call 0478 729 262.
What Is Zincalume Steel?
Zincalume is a high-strength steel product manufactured by BlueScope, coated with a zinc-aluminium alloy (55% aluminium, 43.5% zinc, 1.5% silicon). This alloy coating provides exceptional corrosion resistance, significantly outperforming traditional galvanised steel in most environmental conditions. Zincalume has been used on Australian buildings since the early 1970s and has an extensive track record of performance across the continent’s diverse climatic conditions.
Zincalume vs Colorbond: What Is the Actual Difference?
Both Zincalume and Colorbond use the same base steel with the same zinc-aluminium alloy coating. The difference is that Colorbond has an additional factory-applied, multi-layer paint system over the top of the Zincalume substrate. This paint system adds corrosion resistance, UV stability, and colour. So in simple terms, Colorbond is Zincalume with colour. For commercial and industrial applications where the roof is not visible from street level, where colour is not a requirement, or where budget is a consideration, Zincalume delivers comparable structural performance to Colorbond at a lower price point. For residential or commercial applications where appearance matters, Colorbond is the preferred choice. Arden Projects can advise on the right product for your specific situation.
Where Zincalume Excels in Brisbane Applications
Zincalume is the default material of choice for Brisbane warehouse roofing, industrial shed roofing, factory buildings, agricultural structures, and any situation where performance and durability are the priority over aesthetics. Its high strength means it spans wider than tile, reducing the number of structural supports required in large-span buildings. Its light weight reduces the load on the underlying structure. And its track record in Queensland’s demanding climate is extensive. Learn more about our commercial and industrial roofing services across Brisbane and Logan.
Zincalume Roofing Maintenance in Brisbane’s Climate
While Zincalume is highly corrosion-resistant, it is not entirely maintenance-free in all environments. Properties near the coast, within two kilometres of breaking surf, or in industrial areas with airborne chemicals require more frequent inspection and cleaning to prevent premature deterioration of the alloy coating. Annual inspection and periodic washing of the roof surface is recommended for all Zincalume installations to maximise service life. Arden Projects provides maintenance and repair services for Zincalume roofs in addition to new installation work.
Cost of Zincalume Roofing in Brisbane
Zincalume roofing generally costs less than Colorbond on a per-sheet basis due to the absence of the paint system, with savings typically in the range of 10 to 20 percent depending on the profile and thickness. For large commercial and industrial buildings, this difference in material cost can represent significant savings across the total project. Arden Projects provides detailed, written quotes for all Zincalume roofing projects. Contact our team to arrange a site visit.
Get a Free Roofing Quote Today
Arden Projects serves Brisbane and Logan with expert roofing solutions. Call us on 0478 729 262 or contact our team online to book your free assessment.
