Product Warranty
BlueScope Steel offers a warranty period of up to 30 years* from the date of installation against corrosion to perforation by weathering in the natural elements for COLORBOND® Stainless, Ultra or Metallic steel when used in roofing applications. BlueScope Steel also warrants that the paint system will not flake or peel due to natural weathering for a period of up to 20 years* from the date of installation.
https://warranties.bluescopesteel.com.au/site/
Disclaimer: Warranty terms and conditions apply. Warranties are not available for all products and applications. The duration and terms and conditions of available warranties vary according to product use and application.