Willis Tower

Willis Tower

Previously, the Willis Tower (formerly Sears Tower) was the tallest building in the world, a title that it held for nearly 25 years. It was also the tallest building in the Western Hemisphere for 41 years, until the new One World Trade Center surpassed it in 2013. IR Analyzers is honored to have been chosen to provide the critical integrity testing for the signature green roof deck at Wacker & Jackson.