135 East 57th Street | New York, New York | Projects

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New York, New York

135 East 57th Street
Waterproofing Repairs for Fountains, Plaza and Sub-grade Area

Post construction, sub-grade areas of the building experienced water leakage. Water entered from leaks in the plaza, predominantly from the fountains, and also from ground water infiltration. Budgetary constraints prohibited removal of the large stone units at the fountain to access and repair the underlying waterproofing.

CLIENT
GE Capital Investment Advisors

STRUCTURE
135 East 57th Street is an office building constructed circa 1985. The front of the building incorporates a large plaza containing several fountains, raised plant beds, seating areas, and a tempietto. The plaza surfacing, fountain walls, raised plant beds, and tempietto are a polished and thermally finished granite. The plaza is located directly above two sub-grade levels of retail space and mechanical space for the building. The Lexington Avenue Subway Line is directly east of the sub-grade areas of the building.

SCOPE OF SERVICE

Investigate source(s) of water infiltration

Create a design repair plan for the fountains, raised plant beds, and ground water, in order to correct the water infiltration of the sub-grade areas

Construction observation for the duration of the project

SOLUTION

Designed a new PVC waterproofing system which was loose-laid over the existing stone within the fountains, and covered the PVC membrane with pavers to minimize the aesthetic impact

Designed a cold applied, modified bitumen waterproofing system for the planters

Designed negative side waterproofing repairs, consisting of expanding polyurethane grout and cementitious grout for sub-grade areas of the building

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SERVICE
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