SGH was designer of record for the restoration of the exterior walls, roofs, tower, and cupola. Highlights of our design include the following:
Repairing and repointing existing brick and limestone masonry
Replacing copper and slate roofing
Rehabilitating the bell tower and cupola, including wood restoration and dome regilding
Rebuilding or repairing the building’s fifty-six brick masonry chimneys
Restoring sheet metal balustrades and cornices, and carved wood cartouches
We assisted the architect with their design for restoring original wood windows, helped them establish performance testing requirements for new windows, and conducted hygrothermal analysis to evaluate the effects of adding insulation.
SGH was designer or record for structural modifications related to a major reconfiguration of interior spaces, including changes to vertical and horizontal circulation throughout the building. We designed the following:
New floor openings to accommodate elevator and stair openings
Overframing and ramps to transition between changes in elevations
Infill framing for floor openings that were no longer needed
Support for new mechanical systems and equipment
Improved detailing to connect the floor diaphragms to the walls
