Client:  Chicago  Housing Authority

Location: Cook County, IL

Margaret Day Blake Apartment is a eight-story building built in 1966. It is 68’-3” from grade to top of the main roof. The building was constructed with exterior walls and enclosures that are primarily reinforced with, or are in direct contact with, corrodible metal. The main entrance to the building is located at the east elevation of the accessed via a sidewalk from Clark Street. Five bays project from the rectangular plan on the east and west elevations. Two stair towers are located at the center of the north and south elevations. There is a two-story penthouse that sits along the center of the west elevations. One parking lots service the building, located to the south of the building. The first floor of the building is raised approximately 7” above grade.

The work for this project included improvements of the following:
• Remove areas of spalled and cracked concrete or previous concrete patches at exposed structural members throughout the facade. Clean, prep, and paint exposed rebar.
• Grind and repoint deteriorated mortar joints.
• Remove spalled brick and provide new at locations.
• Remove deteriorated cast stone window sills and provide new limestone sills.
• Rout and seal vertical control joints at brick masonry joints provide backer rod.
• Rout and seal perimeter window sealant.
• Replace sealant at roof flashing at the penthouse.
• Grind mortar at perimeter of air conditioner sleeves and provide new sealant and backer rod.
• Grind mortar and provide new sealant and backer rod at head joint of window sills at brick jambs.