Exhibit No. 31.2
I, Brian L. MacNeal, certify that:
1) | I have reviewed this report on Amendment No. 2 to Form 10-K/A of Armstrong World Industries, Inc.; and |
2) | Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report. |
Date:April 30, 2019
/s/ Brian L. MacNeal
Brian L. MacNeal
Senior Vice President and Chief Financial Officer