Wake Forest Unified Development Ordinance - July 2022

Lighting 10.4 Administration


1. Floodlights, spotlights, or any other similar lighting shall not be used to illuminate buildings or other site features unless approved as an integral architectural element on the development plan. 2. On-site lighting may be used to accent architectural elements but not used to illuminate entire building(s). 3. Where accent lighting is used, the maximum illumination on any vertical surface or angular roof surface shall not exceed 5.0 average maintained footcandles. 4. Building facade and accent lighting will not be approved unless the light fixtures are selected, located, aimed, and shielded so that light is directed only onto the intended target and spillover light is minimized. 5. Wall packs on buildings may be used at entrances to a building to light unsafe areas but must be fully shielded to direct the light downward, must have a light output of 1,600 lumens or lower, and the light source shall not be visible from off-site. B. Outdoor Display Areas: The mounting height of outdoor display area fixtures shall not exceed 30 feet above finished grade. C. Lighting for Vehicular Canopies: Lighting under vehicular canopies shall be designed so as not to create glare off-site. Acceptable methods include one or more of the following: 1. Recessed fixture incorporating a lens cover that is either recessed or flush with the bottom surface of the vehicular canopy. (See top right) 2. Surface mounted fixture incorporating a flat lens that provides a cutoff or shielded light distribution. (See bottom right) 3. Other methods approved by the Administrator.

10.4. Administration

10.4.1. Light Measurement Technique

Light level measurements shall be made at the property line of the property upon which the light to be measured is being generated. If measurement on private property is not possible or practical, light level measurements may be made at the boundary of the public street right-of-way that adjoins the property of the complainant or at any other location on the property of the complainant. Measurements shall be made at finished grade (ground level), with the light-registering portion of the meter held parallel to the ground pointing up. The meter shall have cosine and color correction and have an accuracy tolerance of no greater than plus or minus 5%. Measurements shall be taken with a light meter that has been calibrated within the year. Light levels are specified, calculated, and measured in footcandles (FC). Foot-candles (FC) can be calculated by dividing the lumens (L) by the distance squared (D2) (i.e. F = L / D2).

10.4.2. Compliance A.

Lighting plans required as part of a site construction plan shall include, at a minimum, the following information:

Town of Wake Forest Unified Development Ordinance – July 19, 2022


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