Regional Enterprise TowerEdit profile
The Regional Enterprise Tower is a 410ft (125m) tall skyscraper in Downtown Pittsburgh, Pennsylvania, formerly known as the Alcoa Building. It was completed in 1953 and has 30 floors. It is the 15th tallest building in the city and is adjacent to Mellon Square. A unique radiant heating and cooling system is contained in the ceiling: since there are no pipes, radiators, or air conditinoning units along the extior walls, an additional 15,000 square feet (1,400 m 2) of rentable space was gained. Also, the windows rotate 360 degrees so they can be washed from the inside. Originally the headquarters for the Aluminum Company of America (ALCOA), the unique aluminum walls of the building are 1/8 inch thick, which gives the building a very light weight and economical design. It was the first skyscraper with an all-aluminum facade. Upon ALCOA's late 1990s relocation to a new headquarters building on Pittsburgh's North Shore near PNC Park, the old ALCOA building became a home to regional nonprofits and small start-up companies.