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7 Bryant Park in New York City

The most striking elements of the 29-story tower are two conical incisions carved from its northeast corner.

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October 20, 2017 |

Set in New York’s bustling Garment District and overlooking one of the city’s most cherished green spaces, 7 Bryant Park melds curved glass, stainless steel spandrels and highly transparent 10-by-10-foot openings glazed with Solarban 60® on Starphire Ultra-Clear® glass to create a statement befitting the neighborhood’s fashion-centered legacy.

The most striking elements of the 29-story tower are two conical incisions carved from its northeast corner, which architects Yvonne Szeto and Henry Cobb designed to interface with neighboring Bryant Park. Extending from two sharp points at the 10th floor, the cones widen symmetrically toward the top and bottom of the façade, creating two echoing hourglass shapes.

That distinct design gesture is complemented by extra-large panels of Solarban 60® on Starphire® low-iron glass, which the architects specified to provide unobstructed park views while mitigating the heating and cooling loads associated with glass-walled buildings. Horizontal spandrels finished with stainless steel add another element of texture, reflecting sunlight during the day and colored lights at night.

Jeff Heymann, vice president of business development for curtain wall contractor Benson Industries, Inc., said Solarban 60® was specified on Starphire Ultra-Clear® glass for 7 Bryant Park after it won a “beauty contest” between competing low-iron, low-e glass products displayed on a 40-foot-tall-by-15-foot-wide replica of the curtain wall.

“The fact that Solarban 60® on Starphire® glass glass let in so much light made it easier to harmonize with the conical elements of the facade, which were performance-tested separately, then assembled and installed in sequence with the rest of the curtain wall,” Heymann explained.



Solarban 60® on Starphire® glass also contributes to lower energy use in 7 Bryant Park, helping it to achieve LEED® certification at the Gold level. 

Despite its high levels of transparency, Solarban 60® on Starphire® glass delivers a solar heat gain coefficient (SHGC) of 0.41 via the 1¼-inch insulating glass units installed on the building. That means it blocks nearly 60 percent of the ambient solar energy from entering the building, while transmitting 74 percent of the available sunlight. This exceptional combination of solar control and daylighting lessens demand for cooling and lighting, strategically reducing the workload for three 65-kilowatt micro-turbines stored in the basement, which produce supplemental energy during peak periods of electricity use.

Benson Industries and glass fabricator J.E. Berkowitz (JEB) also helped fulfill the building developer’s quest for LEED certification. JEB packaged the glass units, each weighing more than 700 pounds, on returnable steel racks, which Benson assembled into aluminum frames at a nearby warehouse. Benson then used trucks and custom-built dollies to transport the finished units to their final installation point on the job site.

By using returnable steel racks and dollies instead of wooden-crate packaging for each curtain wall panel, general contractor Turner Construction says the companies created a zero-waste project from one that would typically have generated one 30-yard container of waste per building floor. 

To learn more about Solarban 60® glass, Starphire Ultra-Clear® glass and other high-performance glass products by Vitro Glass, visit www.vitroglazings.com or call 1-855-VTRO-GLS (887-6457).

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