Storage
Traffic signs should be stored under cover in a dry place
and arranged so that warping or disfigurement does not occur. Shelves
and vertical compartments are usually constructed in such a manner that
the reflectorized face does not come in contact with the adjacent
signs.
Store all finished signs off the ground and in a vertical
position until installed. Store finished sheet aluminum substrate
signs in a weatherproof building. Extruded aluminum substrate signs
may be stored outside.
Waxed paper must not be used to protect stored signs.