New York's second tallest sustainable skyscraper,Bank of America Tower.

TechNews Writer
Mon Oct 04, 2021

A recent addition to New York City's iconic skyline, the Bank of America Tower, near Times Square, is an excellent example of cutting-edge green construction technology. It is New York's second tallest skyscraper, just behind the well-known Empire State Building, having been completed in 2009. 

The development team wanted to show that ecological and economic concepts may be made to work together in this project. Only those green elements that would pay for themselves (in decreased operating costs) within five years were considered. As a consequence, an exceptional landmark built on sustainable principles has been created.

Cook + Fox Architects designed the Bank of America Tower at One Bryant Park in midtown New York, which is the first commercial high-rise to earn LEED Platinum certification. This building's design and excellent performance are designed to create a new benchmark for commercial construction and the workplace. The architects reimagine the skyscraper as more than a glass box by concentrating on ways to highlight sunshine, fresh air, and a connection to the outdoors.

The 55-story, 2.2 million square foot building is a fresh addition to the midtown rising blocks around Bryant Park, and its dense setting already challenges the architecture's function. Cook+Fox create a very transparent corner entrance that blends the public street with the private office building. It floods the foyer with natural light and serves as a gentle transition between city life and the workday. Green roofs and an Urban Garden Room incorporate the neighboring park into the building, emphasizing the natural characteristics that may be found in city living when coupled with natural lobby materials. 

The building's shape deviates from its footprint, allowing more surface area to be exposed to daylight and providing oriented views of Bryant Park. The building is effectively insulated and shielded from excessive heat gain thanks to sustainable methods. Low-e glass and heat-reflecting ceramic frit make up the curtain wall. Water-saving features such as waterless urinals, greywater recycling, and rainwater harvesting systems are also included in the structure. The air that is provided to the workplaces is likewise filtered and may be adjusted individually. In order to decrease peak demand on the city's electric system, a thermal ice-storage tank in the cellar generates ice overnight. A 4.6 megawatt cogeneration facility provides clean and efficient power for 70% of the building's yearly energy usage.

The skyscraper is built using ecologically friendly materials; 87 percent of the structure is made of recycled materials, and even the concrete is made with 45 percent recycled material, in this instance blast furnace slag. The structure is surrounded by floor-to-ceiling windows that maximize natural light. In addition to the wastewater recycling system, the tower features its own rainwater collection system. 

The glass, steel, and aluminum skyscraper is influenced in part by the specific site of its immediate location as well as the larger metropolitan setting. Its construction required 25,000 tons of structural steel from eight different firms, as well as meticulous column design. The low density glass curtain wall that covers the tower from the floor to the ceiling minimizes the increase of solar heat through the low emissivity glass and special ceramic pieces reflect the heat while providing particular views.

The low density glass curtain wall that runs the length of the tower from floor to ceiling reduces solar heat gain thanks to low emissivity glass and specific ceramic pieces that reflect heat while giving unique vistas. 

Water conservation techniques such as gray water recycling, rainwater collecting systems, and waterless urinals save millions of liters of drinking water and cut the building's water usage by nearly half. Fresh air delivered to workplaces may be regulated individually and is cleaner when it is evacuated from the building thanks to an under-floor air system with 95 percent filtering.

The Bank of America Tower at One Bryant Park may illustrate how efficient high-rise structures can be, even in crowded metropolitan areas like New York, with such thorough design considerations regarding the quality of the work environment and the building's influence on the natural environment.



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