6(a) American Flag Illumination - Discussion

Home Browse Search

(C) Dawn to Dusk Luminance Standards (i) All sign and decorative light sources must not exceed 6,500 nits. 6) Flagpoles. A flagpole may be illuminated by no more than three upward aimed fully shielded spotlight light fixtures per flag. For flag poles up to 35 feet in height, the fixtures must not exceed a combined 40,000 initial light output lumens for flags of 35 feet or less in height. An additional 500 initial light output lumens for each foot in flag height, not pole height, over 35 feet is allowed up to a maximum of 75,000 initial light output lumens. The light fixtures must be placed as close to the base of the flagpole as reasonably possible and recessed into the ground. (7) Canopy lighting. Light fixtures mounted under roof overhangs and canopies must be recessed so that the lens cover is recessed or flush with the bottom surface (soffit)of the canopy and/or shielded by the fixture or the edge of the canopy so that light is restrained to no more than 85 degrees from vertical. Lights must not be mounted on the top or sides(fascia) of the canopy for the purposes of illuminating a portion or the entire canopy. (A) Example of complying recessed canopy light: Canopy Lighting Car�op�r Fa�cl� R�o�ss�d �1xMx� '� 6' � -- � ' L�ns � � � � �< (8) Building entrances or exits. A light source must be located at each building entrance and exit. (9) Glare. In all zoning districts, all lighting must be arranged so as not to shine directly on any adjoining property. A person must not create light that produces glare clearly visible beyond a property line or creates a sensation of brightness within a visual field so as to cause annoyance, discomfort or impairment of vision. Lenses, deflectors, shields, louvers, or prismatic control devices must be used to eliminate nuisance and hazardous lighting to facilitate compliance with this requirement. (10) Parking structures. Luminaires used for illumination of designated pedestrian walkways in parking structures must be at least finro times the average illumination or of a significantly different color value than luminaires used for illuminating vehicle parking and drive aisles. Convex lenses in open parking garages must not extend more than two inches below the source. Fully enclosed and secured parking structures are exempt from the cut-off and lens restrictions. (11) Proof of lighting. A parking lot used exclusively for daylight use and secured to prohibit nighttime use is exempt from the lighting requirements subject to installation of all conduit and material, other than the lighting and lighting supports, subject to approval by the Issuing Authority. (12) Lighting standards. All exterior lighting must comply with the following standards, which vary by use. In the event more than one use is present, the highest regulatory standards apply. Single- family and two-family dwellings and residential parking lots with fewer than finrelve parking spaces are exempt from the minimum light levels required but shall comply with the lights source and height requirements for any lighting installed. Maintained lighting levels shall be calculated at a Light Loss Factor of 0.81 or the actual tested Light Loss Factor for the source, whichever is less.