Fences may not exceed eight feet in height when placed 100 feet or more back from an ultimate right-of-way line or property line; provided, however, that when a required building setback is greater than 100 feet, the fence may be no higher than six feet between said 100-foot distance and the prescribed setback. For chain link fences, the prescribed heights shall be exclusive of barbed wire topping. Buffering shall be installed on the outside of the fence. At a minimum, a Buffer Type 3 shall be installed, in accordance with the requirements of § 270-68D(5)(e) of Chapter 270, Subdivision and Land Development, unless, in the opinion of the Township, existing vegetation serves as an equivalent or superior buffer.