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Armstrong Inspiring WORLD INDUSTRIES Great Spaces ™ Armstrong World Industries Reports Second Quarter 2021 Results July 27 , 2021 Key Highlights • Net sales up 38 % versus the prior - year quarter • Operating income up 26 % versus the prior - year quarter • Adjusted EBITDA up 44 % versus the prior - year quarter • Increased full - year 2021 sales and earnings guidance LANCASTER , Pa . , July 27 , 2021 ( GLOBE NEWSWIRE ) -- Armstrong World Industries , Inc. ( NYSE : AWI ) , a leader in the design , innovation and manufacture of commercial and residential ceiling , wall and suspension system solutions , today reported strong year - over - year sales and earnings growth for the second quarter 2021 as market conditions continued to rebound from the impact of COVID - 19 . " Our strong second quarter results demonstrate a continued recovery in many of our key markets from COVID - 19 challenges , as well as operational excellence and best - in - class service and distribution models that continue to distinguish Armstrong within the industry , " said Vic Grizzle , President and CEO of AWI . " While the recovery remains uneven and choppy , our actions and investments in support of our digital initiatives , Healthy Spaces products and Architectural Specialties portfolio have enhanced our growth potential . The momentum in our business fuels our confidence to increase our full - year 2021 guidance . " Second Quarter Results from Continuing Operations ( Dollar amounts in millions except per - share data ) Net sales Operating income Earnings from continuing operations Diluted earnings per share Additional Non - GAAP * Measures Adjusted EBITDA Adjusted net income Adjusted diluted earnings per share Adjusted free cash flow For the Three Months Ended June 30 , 2021 2020 Change EA EA EA EA $ 280.0 $ 203.2 37.8 % $ 78.3 $ 62.4 25.5 % $ 55.1 $ 49.5 11.3 % $ 1.14 $ 1.03 10.7 % $ $ SA SASA 6A $ 100 $ 56 1.16 $ 64 $ SA SASA SA $ 69 44 % $ 35 62 % 0.72 ៨ 61 % 63 1 % * The Company uses non - GAAP adjusted measures in managing the business and believes the adjustments provide meaningful comparisons of operating performance between periods and are useful alternative measures of performance . Reconciliations of the most comparable GAAP measure are found in the tables at the end of this press release . Non - GAAP figures are rounded to the nearest million and corresponding percentages are rounded to the nearest percent based on unrounded figures . Consolidated net sales for the 2021 second quarter increased 37.8 % from prior - year results , driven primarily by higher Mineral Fiber sales volumes , incremental sales from the acquisition of Turf , Moz and Arktura in 2020 ( " 2020 Acquisitions " ) and favorable Average Unit Value ( " AUV " ) . Volumes for both segments were driven higher by an increase in demand amid improving economic conditions and lesser COVID - 19 impact when compared with the prior - year quarter . Operating income increased 25.5 % from second - quarter 2020 results , primarily driven by higher sales volumes in both the Mineral Fiber and Architectural Specialties segments , favorable AUV in the Mineral Fiber segment and an increase in WAVE equity earnings . The company also reported a $ 10 million reduction in the fair value contingent consideration related to Turf and Moz . These benefits were partially offset by higher SG & A costs attributable to the 2020 Acquisitions , a resumption in discretionary spending and variable compensation , both of which had been curtailed at the height of the COVID - 19 pandemic in the prior year , and investments for future growth . Second Quarter Segment Highlights Mineral Fiber ( Dollar amounts in millions ) For the Three Months Ended