Etna Borough, Allegheny County

"Screening and visibility. (a) Building-mounted systems on a sloped roof shall not be required to be screened. (b) Building-mounted systems mounted on a flat roof shall not be visible from the public right-of-way within a fifty-foot radius of the lot, exclusive of an alley as defined by this chapter, at a level of five feet from the ground in a similar manner as to any other rooftop HVAC or mechanical equipment. This can be accomplished with architectural screening, such as a building parapet or by setting the system back from the roof edge in such a manner that the solar PV system is not visible from the public right-of-way within a fifty-foot radius when measured at a distance of five feet from the ground."