POWER OF ATTORNEY

Know all by these presents, that the undersigned hereby constitutes and
appoints each of Austin K. So and Alan M. Kidd of Armstrong World Industries,
Inc., or any of them signing singly, and with full power of substitution, the
undersigned's true and lawful attorney-in-fact to:

1.  execute for and on behalf of the undersigned, in the undersigned's capacity
    as an  officer and/or director of Armstrong World Industries, Inc. (the
    "Company"), Forms 3, 4 and 5 (including amendments thereto) in accordance
    with  Section I6(a) of the Securities Exchange Act of 1934 and the rules
    and regulations thereunder and a Form ID, Uniform Application for Access
    Codes to  File on Edgar;

2.  do and perform any and all acts for and on behalf of the undersigned which
    may be necessary or desirable to complete and execute any such Forms 3, 4
    or 5 or Form fD and timely file such forms (including amendments thereto)
    and application with the United States Securities and Exchange Commission
    and any stock exchange or similar authority; and

3.  take any other action of any type whatsoever in connection with the
    foregoing which, in the opinion of such attorney-in-fact, may be of benefit
    to, in the best interest of, or legally required by, the undersigned, it
    being understood that the documents executed by such attorney-in-fact on
    behalf of the undersigned pursuant to this Power of Attorney shall be in
    such form and shall contain such terms and conditions as such
    attorney-in-fact may approve in such attorney-in? fact's discretion.

The undersigned hereby grants to each such attorney-in-fact full power and
authority to do and perform any and every act and thing whatsoever requisite,
necessary, or proper to be done in the exercise of any of the rights and powers
herein granted, as fully to all intents and purposes as the undersigned might
or could do if personally present, with full power of substitution or
revocation, hereby ratifying and confirming all that such attorney-in-fact, or
such attorney-in?fact's substitute or substitutes, shall lawfully do or cause
to be done by virtue of this power of attorney and the rights and powers herein
granted. The undersigned acknowledges that the foregoing attorneys-in-fact,
in serving in such capacity at the request of the undersigned, are not assuming
any of the undersigned's responsibilities to comply with Section 16 of the
Securities Exchange Act of 1934.

This Power of Attorney supersedes any power of attorney previously executed by
the undersigned regarding the purposes outlined in the first paragraph hereof
("Prior Powers of Attorney"), and the authority of the attorneys-in-fact named
in any Prior Powers of Attorney is hereby revoked.

This Power of Attorney shall remain in full force and effect until the
undersigned is no longer required to file Forms 3, 4 or 5 with respect to the
undersigned's holdings of and transactions in securities issued by the Company,
unless earlier (a) revoked by the undersigned in a signed writing delivered
to the foregoing attorneys-in-fact or (b) superseded by a new power of attorney
regarding the purposes outlined in the first paragraph hereof dated as of a
later date.

IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be
executed as of this 20th day of July, 2022.


/s/ Jill A. Crager
Name:  Jill A. Crager