Materials

Metals used in the roof and wall cladding industry in New Zealand are:

• steel coated with zinc - Galvanised steel;
• steel coated with an alloy of aluminium and zinc, sometimes with the inclusion of other minority elements;
• aluminium;
• copper;
• zinc;
• stainless steel; and
• lead.

*Many of these can coated with an organic coating, including acrylic, polyester and PVDF.