LANCASTER – Armstrong World Industries held a groundbreaking this morning at its Lancaster plant on Dillerville Road. The company announced last year of a $41 million project to expand the floor plant in order to make luxury vinyl tile. This marks the company’s second investment in the Lancaster operation since 2008, when it added fiberglass-backed sheet vinyl manufacturing to that plant’s production portfolio. The new project is expected to be completed by early 2015 and result in 57 new jobs at the plant. Congressman Joe Pitts, PA U.S. Sen. Pat Toomey, and Lancaster Mayor Rick Gray were among the dignitaries who attended today’s groundbreaking.