Armstrong World Indus (NYSE:AWI) reported quarterly earnings of $1.50 per share which beat the analyst consensus estimate of $1.38 by 8.7 percent. This is a 22.95 percent increase over earnings of $1.22 per share from the same period last year. The company reported quarterly sales of $367.70 million which beat the analyst consensus estimate of $352.09 million by 4.43 percent. This is a 17.74 percent increase over sales of $312.30 million the same period last year.