For COLORBOND steel and ZINCALUME steel, BlueScope Steel offers a warranty against corrosion to perforation by weathering in the natural elements for a period of up to 36 years* from the date of installation. BlueScope Steel also warrants that the paint system on COLORBOND steel will not flake or peel due to natural weathering for a period of up to 20 years* from the date of installation. The 36 year* COLORBOND steel and ZINCALUME steel for Roofing Warranty only applies providing all of the following conditions are met: – Installed pitch of the roof is equal to or greater than 5 degrees above the horizontal. – The roof is fully lined and does not contain exposed eaves or other areas sheltered or unwashed by natural rainfall. – The roof is located more than 5km from salt water. – All fasteners used for fixing the product to be in accordance with BlueScope Steel recommendations and comply with Australian Standard AS3566: Class 4 where applicable. * 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.