Armstrong World Industries(AWI) - 2024 Q1 - Quarterly Results

Armstrong Exhibit 99.1 Armstrong World Industries Reports Record-Setting First-Quarter 2024 Results • Net sales up 5% with mid-single digit growth in both Mineral Fiber and Architectural Specialties segments versus the prior-year period • Operating income increased 23% and diluted net earnings per share increased 31% versus the prior-year period • Adjusted EBITDA up 16% and adjusted diluted net earnings per share up 23% versus the prioryear period • Recently announced acquisition of 3form, LLC to expand Arc ...