PS 277 Bronx is a wonderful example of C.B.J. Snyder’s English-Flemish renaissance revival style. Very few of his ornate schools remain today. This building is distinguishable by its light-colored face-brick, limestone masonry, terra cotta ornamentations, mansard roof, and central spire. The structural system of this building is an early example of a masonry and steel structure. This building experienced extensive water penetration over the years that resulted in problematic structural conditions. After years of corrosion and expansion, the resulting stress created enough tension to crack the exterior masonry.
The Nelligan White team conducted exploratory probes and material testing to investigate structural conditions and water infiltration points. We discovered water ingress around the windows to be a major source of water infiltration. The team removed and reinstalled all windows to create a watertight seal and installed further waterproofing components. Roofing ventilation proved to be another challenge as the building’s current condition exhibited a critical life safety issue. A full analysis concluded that restoration campaigns were necessary to upgrade the roof, exterior masonry, windows, parapets, and heating plant.