Ironclad Roofing Inc. warrants that, within Canada and the Continental United States of America, under normal atmospheric conditions (which excludes any other corrosive or aggressive atmospheres such as those contaminated with chemical fumes or salt spray) the paint film of the PRE-PAINTED STEEL ROOFING AND SIDING PANELS︱820 WAVES MATT SERIES Steel Roofing and Siding Panels shall not, within a period of fifty (50) years after the date of installation, crack, blister or peel.
For the first thirty (30) years from the date of installation, vertical installations will not chalk more than #8 rating and non-vertical installations will not chalk more than #6 when measured per ASTM D4214, Method A.
For the first thirty (30) years from the date of installation, vertical installations will not change color more than five (5) and non-vertical installations will not change more than seven (7) delta E color units. Color measurements are to be made per ASTM D2244 and only on clean surfaces after removing surface deposits and chalk per ASTM D3964. Color change shall be measured on any accepted colorimeter designed to produce reflectance readings in the Tristimulus Filter System of X, Y and Z based on the CIE values of illuminant C at 2˚ and measured in Hunter L, a, and b units.