[Ord. No. 800 §1, 7-10-1991; CC 2000 §4-1601]
All rooftop or ground-mounted mechanical equipment shall be permanently and securely screened by architectural materials harmonious with the non-residential building, except that a non-residential building not currently in compliance shall not be required to comply until such time as a major construction, reconstruction or alteration of a building or portion thereof shall be commenced.