Differences between galvanised and 'galvalume' steel?

What is the difference between 'galvanised' steel and 'galvalume' steel? What are the benefits of galvalume steel and is it more expensive than steel that is galvanised?

Asked by Claire Kate on 16th Jun 2022
Expert Trade Answers
"Galvalume is a roofing sheet that has a coating of zinc, silicon, and aluminum. All these coatings protect the metal and are the primary form of the steel made of oxidation. It protects the base metal and sacrificial metal coating.29 Nov 2019
Definition: Galvalume is a roofing sheet that has a coating of zinc, silicon, and alumi...
Usage: It is used for outdoor roofing as a metal panel mainly for iron-based protection ..."
Answered on 31st Jul 2022 - Member since May 2020 - report
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