Residential Limited and Residential General. All signs and outdoor advertising shall conform to the Code of Virginia, and where not in conflict with more restrictive provisions of the Code of Virginia, the following signs are permitted within the size limitation shown:

Light Commercial and General Commercial Districts. All signs and outdoor advertising shall conform to the Code of Virginia, except that only one sign for each street upon which a lot abuts shall be permitted to advertise the business on such lot, and when any sign is lighted, such lights shall be so shaded that they will not interfere with the vision of motorists or residential property owners in the vicinity, and provided further that all flashing (on and off) signs shall be prohibited.