What is Galvalume?

For many jobs, protecting steel from oxidation is a must.
Although zinc coating on steel, that is, galvanizing, is a common method to prevent corrosion.
But another material, Galvalume, may also be a suitable choice
Galvalume is a coating composed of zinc, aluminum and silicon, referred to as aluminum-zinc alloy coating.
It is mainly used to protect metals from oxidation, and the metal here mainly refers to steel.
It is somewhat similar to galvanizing because it is a coating that protects metals.