Harmon Ahead of Schedule in Renovating Chicago's Lakeshore Condo Towers

Harmon Inc.'s Service Glass based in Chicago is currently in the process of renovating the window system of the city's 3550 North Lakeshore Drive's two 28-story condominium towers. The project is in its second year, and, according to Harmon, is ahead of schedule.

The towers, which included non-thermal, continuous strip windows with monolithic glass, were nearly 30 years old when renovations began. Veneer masonry was not only failing due to the stress of the old windows, but the windows were leaking air and water, and provided no insulating capacity.

In renovating the towers, Harmon's Service Glass recommended an access system in which the windows would be demolished and installed from the outside of the building. This, according to Harmon, not only helped improve the schedule, but also minimized the disruption that would have been caused by doing the work from inside.

Harmon's renovation team has installed more than 7,000 steel brackets and more than five miles of structural steel sill, as well as having removed 6,904 windows and doors. The new windows feature high-performance, argon gas-filled insulating glass with heat-absorbing tint and low-E coatings. They also have thermally broken frames that are finished with a custom champagne color, high Kynar® paint.


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