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Garden Street Lofts, Hoboken, N.J.

This project brings together green design and living in an environmentally friendly urban redevelopment project on a historically significant site. With LEED certification pending, the $16.8 million redevelopment project will be the city's only LEED certified residential building.

At the heart of the new luxury residential space is a five-story former Hostess snack cake factory and warehouse built in 1919 for processing and storing coconuts. New construction added seven floors of living space, with five floors adjacent to the original building and two cantilevered above.

The original concrete and masonry building totaled 42,888 square feet (3,984 m2), and the new zinc-clad structure adds 35,054 square feet (3,257 m2). Maloya Laser Inc. supplied 11,900 square feet (1,106 m2) of VM Zinc panels. Umicore Building Products USA Inc. supplied the VM Zinc for the project. Along with prime retail space at street level, 30 luxury apartments and penthouse suites were developed.

Wausau Window and Wall Systems supplied169 window units for the new construction and 64 double-hung windows to retrofit the existing building.

"What we wanted to do with the Garden Street Lofts is keep the existing features of the older building, but introduce a modern feel, in effect bridging old and new while maintaining the historic integrity of the area," said Colleen O'Keefe, project architect at SHoP Architects PC. "The neighborhood is a mix of industrial and residential, and our intention was to mirror the aesthetic."

"The project was an urban infill, which meant the orientation of the building was already established. High ceilings and larger windows, however, particularly in the newer portions of the building, help achieve a 15- to20-foot [5- to 6-m] daylighting perimeter within most of the apartments. The goal is to strike a balance between daylight penetration an energy use," said Sarah Sachs, associate at Buro Happold Consulting Engineers PC, the engineer and LEED consultant.

"The windows protect the interior space and help lower utility costs. Darker windows minimize heat gain in the summer. Operable units take advantage of temperate mid-season conditions. Insulated windows minimize heat loss in the winter. Windows are one of the wayswe help optimize energy use for each housing unit," Sachs said. "Overall, we're looking at a19 percent reduction in energy consumption compared to a conventional structure."

Acoustical performance was also a consideration, particularly on the south side of the building, which points toward a freeway overpass to Jersey City.

Wausau provided two kinds of windows for the project. To retrofit the existing structure and maintain the historic look and feel, Wausau supplied double-hung windows from its 3100 DH Series. The units are 4 1/2 inches (114 mm) deep with a polyurethane thermal barrier and Ultra-Lift balances, black sweep locks and half screens. The windows are AAMA AW-70 rated.

 

For the new structure, Wausau provided its 4250iV Visuline Series windows, which are AAMA AW-90 rated. The frame is 4 1/2 inches deep, providing uniform sightlines between the new and old exteriors. The high-performance insulated windows are engineered with a structurally glazed sash and a single handle, multipoint lock. More than 100 of the units are project-in hoppers, which allow residents to take advantage of natural ventilation.

Wausau also supplied 24 leafs of its 4 1/2-inch-deep, 4250i-TD Series terrace doors that were installed on the residences' balconies. The door's polyamide nylon barrier enhances thermal and condensation performance, while a single, European styled handle actuates multipoint locks.The doors also meet or exceed Architectural Performance Class requirements for forced entry, air infiltration and structural integrity.

Linetec supplied its durable 70 percent Kynar two-coat paint in Hoboken Gray for the finishing on the window units' aluminum framing. Viracon Inc. fabricated the clear glass for the windows and doors, including the low-E (VE1-42) with high-performance coatings.

Developer: Bijou Properties, Teaneck, N.J.

Architect: SHoP Architects PC, New York

Engineer and LEED consultant: Buro Happold Consulting Engineers PC, New York

General contractor: Del-Sano Contracting Corp., Union, N.J.

Glazing contractor: United Metal and Glass Co. Inc., Jersey City, N.J.

Zinc panel fabricator: Maloya Laser Inc., Commack, N.Y.

Windows/glazing: Wausau Window and Wall Systems, Wausau, Wis.

Glass fabricator: Viracon Inc., Owatonna, Minn.

Paint finisher: Linetec, Wausau

Zinc: Umicore Building Products USA Inc., Raleigh, N.C.