The Atrium at Sumner, a transformative 11-story affordable senior housing development in New York City, exemplifies how bold design, energy efficiency, and innovative building systems can redefine public housing. As part of the Next Generation NYCHA initiative, the project was designed by renowned architecture firm Studio Libeskind and built to Passive House standards, reducing energy consumption by an impressive 60–70% compared to conventional NYC apartment buildings.

At the heart of this high-performance building is EIFS, which provided not only the superior thermal performance required for Passive House certification but also a striking aesthetic that aligns with the project’s geometric architectural expression.

The Atrium’s dynamic façade, with its angled lines and deeply recessed windows, demanded a cladding system that could both complement the design and meet rigorous energy performance requirements. EIFS was the perfect fit, offering:

• Continuous insulation for optimized thermal performance
• A signature Limestone finish that mimics natural stone, adding a sleek, contemporary appearance
• Five planes of control—vapor, air, water, thermal, and durable water-shedding—for long-term building protection

This combination enabled the design team to maintain the building’s bold architectural vision without compromising on efficiency or durability.

The project’s dramatic forms introduced several design challenges, particularly around water management. Recessed windows and flat ledges presented potential points for water intrusion—an especially critical concern given New York’s variable climate. To resolve this, a flexible, acrylic-based waterproof basecoat was expertly applied to the window ledges, creating subtle slopes that channel water away from the building. This innovative application ensured that the architectural intent was preserved while safeguarding the structure from moisture-related damage.

Designed to Passive House standards, The Atrium at Sumner showcases how advanced materials and systems can drastically reduce a building’s environmental impact. Key sustainability outcomes include:

• Sixty to 70 percent reduction in energy consumption compared to typical NYC buildings (source: Studio Libeskind)
• Enhanced airtightness and thermal insulation
• Support for NYC’s broader climate and sustainability goals

The EIF system played a central role in achieving these benchmarks by delivering high R-values, minimizing thermal bridging, and contributing to the airtight envelope required for Passive House certification.

With 190 new units—providing housing for seniors and formerly homeless individuals—The Atrium at Sumner is more than a building; it’s a thriving, resilient community. Through close collaboration among NYCHA, Studio Libeskind, and Sto Corp., the project demonstrates how public housing can be reimagined as sustainable, beautiful, and deeply functional. This case sets a powerful precedent for how Exterior Insulation and Finish Systems can contribute to transformative, energy-efficient design—especially in the realm of affordable housing.

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