Armstrong World Industries Inc. announced that it has entered into an agreement to acquire the business and assets of Steel Ceilings Inc., a manufacturer of standard and custom aluminum and stainless metal ceilings, including architectural, radiant heating and cooling, and security solutions, with annual revenues of approximately $10 million. The acquisition will advance AWI’s strategy to aggressively penetrate the architectural specialties segment and provide additional capabilities to sell into more spaces and sell more into every space. SCI is located in greater Columbus, Ohio, near two other existing AWI manufacturing plants. The transaction is expected to close in the third quarter of this year.