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.  prepare, execute in the undersigned?s name and on the undersigned?s behalf,
    and submit to the U.S. Securities and Exchange Commission (the ?SEC?) a
    Form ID, including amendments thereto, and any other documents necessary or
    appropriate to obtain codes and passwords enabling the undersigned to make
    electronic filings with the SEC of reports required by Section 16(a) of the
    Securities Exchange Act of 1934 or any rule or regulation of the SEC;

2.  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 shall remain in full force and effect unless revoked by
the undersigned in a signed writing delivered to the foregoing
attorneys-in-fact.

IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be
executed as of this 16th day of June 2022.


/s/ Richard D. Holder
Name:  Richard D. Holder