Colorbond and Zincalume are two types of metal sheets that are used for building and roofing purposes. The two materials are quite similar to each other but there are many differences which will help you to choose between them.


What is Colorbond Roofing made of?


Colorbond roofing is a type of metal roofing that has been in use for over 40 years. Colorbond steel is made from a durable Zincalume core, a baked-on corrosion inhibitor and sealed with a tough painted finish. Colorbond roofing was invented in Western Australia back in the 1970s. It was originally designed to be used on houses with coastal climates, but it has since become popular all around Australia.

Does Colorbond rust? This is one of the most common questions surrounding this type of roofing material. Colorbond steel roofing can corrode over time, as with all roofing options. Too much exposure to moisture and chemicals can lead to premature ageing. However, it can survive for around 50 years if located in less harsh environments.

Colorbond roof sheeting colours come in different variations. Classic trademark and registered colours include Classic Cream, Cottage Green, Deep Ocean, Manor Red, Night Sky, Pale Eucalypt, Paperbark, and Woodland Grey. Colorbond roofs also offer a range of colours under the Contemporary Range which include Terrain, Shale Grey, Monument, Mangrove, Dune and Cove to name a few. Matte colours such as Dune, Monumber, Basalt, Shale Grey, and Surfmist are also available. The Colorbond range of colours is designed to suit the needs of any building project, whether it be residential, commercial or industrial.

What is Zincalume Roofing made of?

Zincalume is a type of metal roofing that is made from zinc alloy and aluminium. Zincalume was developed in the early 70s as an alternative to steel roofing, which was more expensive and less durable. The metal composition of this roofing material makes it more resistant to corrosion than most other types of metal roofs, which can be useful in coastal areas or other climates where there’s a lot of humidity. Similar to Colorbond, Zincalume Steel guarantees long-lasting performance. It is easy to maintain, an important factor in an Australian household and highly-resists corrosion. It is one of the most popular choices for Australian roofs.

Colorbond Advantages

Durable and Weather Resistant

Colorbond is specifically tested to withstand Australian conditions. It can withstand extreme heat, cold, rain, and wind. It can stay strong no matter what the weather is. Colorbond complies with Australian Standards (AS1397 and AS/NZS 2728), a guarantee that it is built to last.

Wide Range of Colours

Colorbond roofing is easy to customise and saves you a few hundred dollars with the range of colours. With 22 choices to choose from, you can choose a custom Colorbond roof that suits the theme of your home.

Heat reflective

Colorbond features the Thermatech® technology that allows the material to reflect the sun’s rays and keep your home cool all summer long.

Colorbond Disadvantages


Compared to other roofing materials, Colorbond is quite expensive. However, despite the cost, it lasts longer and requires minimal maintenance, making it an investment that goes a long way

Requires Refinishing/Repainting

Too much exposure to varying weather conditions may require a new coat of painting and refinishing to maintain its integrity and overall appearance.

Zincalume Advantages

Tough and Resistant Proof

With the activated aluminium coating covering present in Zincalume steel, it is tougher and more resistant to scratches that are common during installation.


Considered to be cheaper than other steel roof products, Zicalume is also recyclable and an environment-friendly product.

Colorbond vs Zincalume: The Verdict

Whether you prefer Colorbond or Zincalume for your roofing requirements, you are in for some high-quality and durable roofing no matter which you choose. Whatever your choice may be, Colorbond and Zincalume are both ideal roofing types for the modern Australian home.

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