Important: Do not mix paint qualities!
Mixing coils and sheets with other coloured aluminum coils should be avoided at all costs due to the different paint qualities. valleys, gables, chimneys, flashings, etc., may only be made of aluminium coloured coils in polyester quality for different roof or façade systems than PREFA(not PREFA roofs or façades).
For flashings and trimmings respectively for supplementary parts for PREFA roof and facade system only coil material in an appropriate paint quality must be used. This is the only way to ensure colour uniformity in the long term.