what is the difference between colour bond and zincalume?

Colorbond and Zincalume are both types of steel roofing materials commonly used in construction. The main difference between the two lies in their coatings:

1. Colorbond: Colorbond is a pre-painted steel roofing material that is coated with a durable layer of paint in a wide range of colors. This paint coating is designed to provide both aesthetic appeal and protection against corrosion and weathering. Colorbond roofs are known for their vibrant colors, long-lasting finish, and low maintenance requirements.
2. Zincalume: Zincalume is a zinc/aluminium alloy-coated steel roofing material that is designed to provide excellent corrosion resistance. Zincalume roofs have a shiny, metallic appearance and are known for their durability and longevity. While Zincalume roofs do not come pre-painted like Colorbond, they can be painted or coated with a protective layer if desired.

In summary, Colorbond is a pre-painted steel roofing material known for its color options and aesthetic appeal, while Zincalume is a zinc/aluminium-coated steel roofing material known for its durability and corrosion resistance.