Metal
Galvanized tubing, enamelled or plastic coated structures can be used. The galvanized option will weather to a dull grey matt finish, which fits into rocky landscapes. Enamelled or plastic finishes are acceptable as long as they are undamaged, but work better in more urban areas. Where vandalism is common the galvanized tubing is a deterrent, as is the use of ‘Cor-ten’ steel, which weathers to a rust patina.
Composite materials
Laminate materials can also be used: for example, resin-bonded plastic-wood, or recycled plastic made into a material that can be worked like wood. These are also extremely durable and can be very cheap while actually looking better than initially might be expected.
Vandalism
There are many situations where vandalism might be expected. Not all are in urban or urban fringe settings. Many of the materials described above are sturdy and durable, and can be used with confidence in such places. Others can easily be repaired or repainted if vandalism is sporadic or rare. Materials such as Perspex, plastic-coated steel, enamel and screen-printed wood should be avoided in high vandal risk situations. The alternative of low-cost, temporary installations is well worth considering if information must be provided in high-risk areas.
