A light touch, in the form of a mason hammer, played a key role in the $2.5 million exterior restoration of the 107-year-old 36 Gramercy Park East residential tower in New York City, for which the final punch list was completed earlier this year.
Restorers used this hammer to assess each of the approximately 3,750 ornamental elements within the building’s 15,393-sf terracotta façade. Tapping each piece informed the architects, CTA Architects, by its sound which category the piece fell into: that it was in good condition, that it needed to be removed and reset, or that the piece was beyond repair and needed to be replaced.
The ornamental pieces ranged in size from several inches to several feet. About 1,500 pieces were removed, replicated, and replaced. (Boston Valley Terra Cotta, one of only two firms in the U.S. that make terracotta facades, recreated the damaged pieces.) Another 1,500 pieces were removed and reset with new stainless steel anchors or pins. There were also six winged grotesques overhanging the building by five feet, all of which were replaced.
The terracotta façade for this Gothic-Revival style building is on the street side facing west and in a U-shaped light shaft and entrance in the back. (The rest of the walls are brick masonry.) The terracotta inspection was done by boom, but the Building Team also used existing fire escapes and the building’s roof to inspect adjacent walls and the light shaft.
Some of the terracotta was anchored to the building’s steel frame and some connected to masonry wall behind them. Consequently, inspecting the various connection types presented additional technical challenges. The backup masonry and steel were waterproofed.
The U-shaped building, located in Manhattan's Gramercy Park Historic District, stayed open during its facade restoration. Image: Ola Wilk/Wilk Marketing Communications.
The Building Team—which included Total Structure Concepts (GC) and Robert Silman Associates Structural Engineers (SE)—replaced the parapets around the perimeter of the building’s roof. However, over three-fifths of the cornice band at the main roof level remains as original material.
The New York City Landmarks Preservation Commission wanted a new handrail around the roof that would be visually unobtrusive. CTA specified a wire rope handrail for low visibility. Other preservation agencies were involved in a four-week-long color selection for the terracotta façade (its original color was bone), and also weighed in on mortar color, and brick shape and color.
Other ornamental details that this restoration addressed included oriels, Gothic arches, sculpted faces, bay windows, colonnettes, corner rope moldings, shields, more than 120 putti, and oversized statues of soldiers crown the top of the building.
“CTA has performed a great number of complex historic exterior renovations, but the 36 Gramercy Park East project was the most challenging to date, due to the historical character and great ornamental detail of the building,” said CTA partner Daniel Allen, AIA.
This project recently received the New York Landmarks Conservancy’s Lucy G. Moses Preservation Award and the Victorian Society in America’s Preservation Award.
Related Stories
| Oct 1, 2013
Renovation of historic Winchester, Va., buildings uncovers Civil War cannonball, bullets
The renovation of a set of historic downtown Winchester, Va., buildings led to the discovery of several historic artifacts including a Civil War cannonball and bullets, a variety of old baseball cards, and a 1940s-era newspaper embedded in the drywall.
| Sep 24, 2013
Hersheypark Arena ceiling renovation brightens interior, improves acoustics
Hersheypark Arena in Hershey, Pa., unveiled a new look following a $500,000 ceiling renovation.
| Sep 17, 2013
Complex stained glass restoration under way on Wisconsin Capitol Building
Work is under way at the Wisconsin State Capitol on an extensive $2.7 million, 14-month renovation to the skylights above the House and Senate chambers, along with the barrel vault skyline above the grand staircase and the panels in the rotunda dome.
| Sep 10, 2013
Melbourne, Australia’s ambitious retrofit program earns climate leadership award
The 1200 Buildings program in Melbourne, Australia was designed to encourage the retrofitting of 1,200 commercial buildings, or about 70% of the city’s commercial buildings stock.
| Sep 4, 2013
Twenty-nine-acre brick building complex in Watertown, Mass., to be renovated as innovation hub
The owner of a 29-acre cluster of brick buildings in Watertown, Mass., wants to reinvent the site as a 21st-century innovation hub.
| Aug 26, 2013
2013 will be record year for hotel renovations
The U.S. hotel industry is expected to spend $5.6 billion on capital expenditures this year, exceeding the most recent record of $5.5 billion set in 2008.
| Aug 19, 2013
Discovery of hidden asbestos complicates DFW terminal renovations
The finding of more asbestos in Terminal B than expected, and the pending merger of US Airways and the airport’s largest tenant, American Airlines, is causing construction delays on a $2.3 billion Dallas/Fort Worth Airport terminal renovation.
| Aug 13, 2013
Wausau acquires Custom Window in Colorado
Apogee Wausau Group, Inc., doing business as Wausau Window and Wall Systems, has acquired the assets of Benchmark Sales Agency, Inc., doing business as Custom Window Company, Inc., to expand Wausau’s product offering and U.S. geographic reach. Terms of the purchase were not disclosed.
| Aug 12, 2013
Decade-long renovation of Kansas Capitol Building expected to be complete by year end
A $300 million-plus, decade-long renovation of the Kansas Capitol Building in Topeka is expected to be complete by the end of the year. The exterior refurbishing of copper over the four imposing wings and around the dome should be complete by late November.
| Aug 6, 2013
Renovation of Radcliffe Institute for Advanced Study yields oldest LEED-certified building in U.S.
The Radcliffe Institute for Advanced Study recently achieved LEED-NC v3 Gold certification for its renovation of the historic Fay House, making it the oldest LEED-certified building in the United States.
