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Atlanta, GA 2016

Three Alliance Center

Harmon manufactured and installed 246,000 square feet of unitized curtain wall, which contained 605 unique faceted units that project off of the building in different directions. The lobby is framed in with a 6,000 square foot structural glass wall which has a 41’3” vertical span and a 12’ deep glass roof. The scope also included the doors, entrances, interior glass and mirrors. Harmon was recognized by Turner Construction as ‘Subcontractor of the Year’ for its work on this project.

Project Size

246,000 sq. ft.

Building Type

Commercial Office

Curtain Wall Product

Single stack custom curtainwall

Project Features

Structural Glass Wall

Owner / Developer

Tishman Speyer


Mack Scogin Merrill Elam Architects

General Contractor



© Viracon, Raphael Pantin

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