Zincalume vs Colorbond. What’s the Difference?

One of the most important decisions when deciding to build your new shed is which material to choose for your project. Let’s take a look at the two main choices - COLORBOND® steel or ZINCALUME®

[@nitram7321]

Can you show any independent tests of heat differences between colorbond and zincalume. I'm extremely sceptical that any of the colorbond colours are cooler than zincalume???