The Stephen A. Schwarzman Building of the New York Public Library, occupying the full block between 40th and 42nd Streets on Fifth Avenue, is among the most visited and recognizable Beaux-Arts structures in the United States. Designed by Carrere and Hastings and completed in 1911, the building is a New York City interior landmark and is listed on the National Register of Historic Places. Its colonnaded marble facade and elaborately carved stone ornamentation represent some of the finest Beaux-Arts stonework in the country.
Graciano Corporation performed historic stone and masonry restoration at the New York Public Library, contributing to the ongoing preservation of this civic landmark. The project reflects Graciano's long track record of institutional restoration work in Manhattan and our experience with the material and oversight requirements of nationally significant buildings.
The Building
The library's exterior is characterized by its large carved marble columns, ornate stone balustrades, monumental staircase, and refined Beaux-Arts detailing. The marble and stone surfaces have been exposed to more than a century of New York City weather, vehicle exhaust, and environmental loading, all of which contribute to surface deterioration, joint erosion, and the gradual loss of carved detail if left unaddressed.
As a New York City interior landmark and National Register property, work at the New York Public Library requires coordination with the Landmarks Preservation Commission and adherence to the Secretary of the Interior's Standards for the Treatment of Historic Properties. Graciano understands these requirements and plans its work to satisfy both preservation standards and the practical needs of an active public institution.
Scope of Work
Services Performed
- Historic stone cleaning using gentle, preservation-appropriate methods
- Mortar analysis and compatible repointing
- Stone repair and consolidation at deteriorated locations
- Carved ornamental stone repair
- Caulking and joint sealant replacement
- Waterproofing treatment compatible with historic marble
Preserving Carved Stone Detail
The New York Public Library's facades include extensive carved ornamentation, including figurative sculpture, decorative moldings, and refined architectural details. Preserving this carved work requires skill and restraint: the goal is to stabilize what remains rather than to recreate or overly repair, so that the authentic historic character of the stone is maintained. Graciano's historic restoration crews are experienced in the difference between stabilization and reconstruction, and apply that judgment throughout projects of this type.
Mortar selection on a marble structure like the library demands careful attention to hardness and composition. Portland cement mortars that are harder than the surrounding stone will direct stress into the stone faces and cause spalling and edge loss over time. Graciano uses mortar analysis and matching to select compatible materials that perform well without damaging adjacent historic fabric.
About Graciano Corporation
Founded in 1916 and headquartered in Pittsburgh, Graciano Corporation is one of the oldest and most experienced masonry and concrete restoration firms in the United States. With offices in Pittsburgh, PA, New York, NY, and Florida, we perform 90% of all work in-house with our own skilled journeymen. Our New York operations have a deep portfolio of landmark and institutional work across all five boroughs. Graciano is a WBENC-certified Woman Business Enterprise.