NBN EN 501:1994

This EN specifies requirements for roofing products used for assembly into coverings for pitched roofs, made from Zinc Copper Titanium alloy sheet with or without additional organic coatings. This standard establishes the general characteristics, definitions, classifications, labelling and quality control for the products. Products can be prefabricated or semiformed products (eg. interlocking tile, slates, flashings...) as well as strip, coil sheet for on-site-formed applications (eg. standing seam roofs, roll cap...).