Copper is one of the heavy metals and is a relatively soft and easily malleable metal. It is initially bright red, darkens in the air and then turns brown. Depending on the weather, a patina slowly forms, which provides additional protection for the material and gives it a dark brown to light or dark green colour. For roofing, copper sheet is produced in sheets or coils (strip metal rolls). It can be recycled very well.
Source: bauwion
Metal roofs, corrosion: In the order of installed metal components, attention must be paid to the redox series. For example, no other metals should follow after a copper roofing, as the washed out copper particles can lead to corrosion in other metals. In addition, when combining different metals, attention must be paid to contact corrosion. The ZVDH's "Technical Rules for Metalwork in the Roofing Trade" lists the possible combinations of different metals. For example, titanium zinc, aluminium and galvanised steel may not be used in combination with copper. If no other option is possible, separation layers or protective coatings must be planned.
Source: bauwion
