Armstrong World Industries Reports Record-Setting First-Quarter 2025 Results Exhibit 99.1 (Comparisons above are versus the prior-year period unless otherwise stated) LANCASTER, Pa., April 29, 2025 -- Armstrong World Industries, Inc. (NYSE:AWI), an Americas leader in the design and manufacture of innovative interior and exterior architectural applications including ceilings, specialty walls and exterior metal solutions, today reported first-quarter 2025 financial results highlighted by strong net sales and ...