enLIGHTen: IES International Year of Light Photo Contest 2015
In celebration of 2015 as the International Year of Light as proclaimed by UNESCO, the Emerging Professionals of IES (Illuminating Engineering Society) are giving you a reason to share your love for lighting for the next 6 months.
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The Richard Kelly Grant
2015 Call For Entries - Grant proposals must be submitted by June 30, 2015.
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Lamps & Fixtures in the Field
Designers were not chained to the past when remaking a fire-ravaged building at a prestigious prep school in New York
estoration of historic buildings often means strict adherence to the past: Search the archive, study old photos and faithfully re-create what was in place for decades if not centuries.
Goldstick’s solution was to create layers of light. The three rows of pendants were reduced to two leaving ample wattage to add uplighting for the elegant ceiling that was designed into coves as well as wall washers to graze the stacks. “The electric lighting had to respond to and balance the over abundance of daylighting,” says Goldstick. Color-corrected lamps, with 6,000-hour or more life for reduced maintenance, are used throughout to provide high-color rendering, while the 3,000K color temperature enhances the oak furniture and detailing.
The most dramatic lighting element in the library are the custom cylinder pendants (Visa Lighting), which offer independently controlled downlight and ambient illumination, and provide 75 footcandles (task) and 50 fc ambient illumination with all lamps at full output. GE 39-W ceramic metal halide downlights and 39-W fluorescent lamps form the tandem. Aesthetically, the detailing of the luminaires underscores the building’s original neoclassical architecture.
Next, the design team was intent on integrating lighting with the architecture. A cavity hidden behind the perimeter stacks on facing walls houses cove fixtures (Day-o-Lite) with two independently controlled (54-W and 80-W) GE T5HO lamps. These fixtures wash light across the ceiling to emphasize the architecture, while strategically reducing contrast ratios. Light levels may be manually adjusted based on available daylight.
Last, the stacks are grazed by adjustable fixtures (Architectural Lighting Works) mounted to the front of each bookcase, providing 90-20 fc vertically from top to bottom.
Goldstick says the layered lighting scheme is not “an over-engineered solution [i.e., requiring myriad automated lighting controls] . . . . I’m from the KISS school of design.” The lighting in the library is manually operated, because “librarians like to control their space without a lot going on around them.” Hackley officials, however, may need to remind the librarians to exercise that control and dim the electric lights, since the space can seem overlighted on a sunny day when most of the electric lighting is on.
Also on the second floor, newly constructed wings on the sides of the library house small study areas. Here, daylight entering through generously sized windows is supplemented by fluorescent wall sconces (Visa) and pendants (Borden). Unlike the main library, automated controls were installed here; the daylight and occupancy sensors were supplied by Sensor Switch.
Classrooms were also added to Goodhue Hall. Each has two rows of indirect/direct linear fluorescent pendant fixtures (Finelite) with multi-level switching controlled by the teachers. Occupancy sensors were also used.
Goodhue Hall reopened in September 2010—restored in some ways, but enhanced in many others.
Photos: Robert Mintzes