Bigger is better. That’s the thought behind a project in Erie, Pennsylvania, featuring North America’s tallest single-span glass fins. The 58-foot-long low-iron laminated glass fins were engineered by W&W Glass and installed by Imperial Glazing Concepts Inc. (IGC). The fins were made by Thiele Glass and the insulating glass units were made by Tvitec Glass. They adorn the new headquarters of Erie Insurance Group.