Signs, marquees and awnings. All canopies, marquees, signs, metal
awnings, stairways, fire escapes, standpipes, exhaust ducts and similar
overhang extensions shall be maintained in good repair, be properly
anchored and be kept in a safe and sound condition. They shall be
protected from the elements and against decay and rust by the periodic
application of a weather-coating material such as paint or other protective
treatment.