Window boxes at the front of the structure play several roles: to block the sun, to add plants to the facade, and to emphasize the rich palette of materials used in the construction. Overall, the design beautifully balances a fresh, modern aesthetic with Cobble Hill’s traditional brownstone and brick vernacular.
Not only a beautiful construction outside and in, the design of 253 Pacific is sustainable to boot. From the offset the building’s environmental footprint was placed at the heart of the design, and upping the green aspects was very important to both the developer and the architect.
To keep the building’s HVAC energy consumption to a minimum the structure is tightly buttoned up with plenty of insulation employed throughout. The front and rear walls are steel stud walls designed and built to avoid thermal bridging — the walls use both rigid and spray in insulation and have an R value of 47.5. The long side walls of the building are poured concrete, and insulating concrete forms (ICF’s) is used to obtain an R value of 20 in these areas. In addition to a green roof, the roof has 6″ of rigid insulation and R values of 32. Windows and doors that penetrate these walls all have thermally broken frames and high performance glazing. Overall the building is estimated to be a considerable 35-50% more efficient than a comparative structure of its size!
Recycled materials are used wherever possible and include 800 cubic yards of structural concrete that contains 24% fly ash, rebar (all 135 tons of it) of 98% recycled content, countertops fabricated using recycled glass, and the zinc facade requires very little energy to produce, is recyclable, and has an extremely long life span. Energy efficient appliances and fixtures are also installed to reduce energy and water usage. The building is LEED Gold rated.
Photos: © James Cleary