The reason for painting is based on 4 principals: Preservation, Decoration, Sanitation and Identification.
Preservation.
The Forth Bridge being constructed in 1898. The latest painting project completed in 2013 and guaranteed for 25 years.
Decoration.
Ranging from normal interior and exterior painting to skills including wallpaper hanging, heraldry and gilding. See under ‘And much more’ Advance decorating skills.
Sanitation.
Protection against mould and algae problems
Identification.
Specific colours are used for health and safety purposes.