1120 North Lake Shore Drive is an 18-story residential building constructed in the mid-1920s.

The project consisted of phased facade repairs and a comprehensive window replacement program, including:

Masonry and Stone Repairs

• Brick masonry and limestone repairs, including replacement of deteriorated steel shelf angles and lintels with installation of new concealed flashings

• Select brick and limestone replacement

• Grinding and tuckpointing of mortar joints

• Crack repairs, including rout and seal installation

• Limestone Dutchman and patch repairs

Sealant Replacement (100%)

• Removal and replacement of sealant at window and door perimeters

• Sealant replacement at metal fire escape penetrations

• Sealant installation at limestone sill ends, butt joints, quoin-to-brick joints, belt courses, and coping joints

• Miscellaneous joint sealant repairs, as needed

Window and Miscellaneous Repairs

• Full replacement of wood windows from the 2nd through 18th floors

• Repair and painting of wood windows at fire escape locations

• Painting repairs at existing steel fire windows and doors, as needed

• Concrete spall and crack repairs, as required