SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of the

Securities Exchange Act of 1934

Filed by the Registrant ☒       

Filed by a Party other than the Registrant ☐

Check the appropriate box:

☐	Preliminary Proxy Statement
☐	Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))
☐	Definitive Proxy Statement
☒	Definitive Additional Materials
☐	Soliciting Material Pursuant to §240.14a-12

ARMSTRONG WORLD INDUSTRIES, INC.

(Name of Registrant as Specified In Its Charter)

(Name of Person(s) Filing Proxy Statement, if other than Registrant)

Payment of Filing Fee (check the appropriate box):

☒	No fee required.
☐	Fee paid previously with preliminary materials.
☐	Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11.

	Your Vote Counts!
	ARMSTRONG WORLD INDUSTRIES, INC. 2024 Annual Meeting Vote by June 12, 2024 11:59 PM ET
ARMSTRONG WORLD INDUSTRIES, INC.      AUSTIN K. SO      2500 COLUMBIA AVENUE      LANCASTER, PA 17603
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You invested in ARMSTRONG WORLD INDUSTRIES, INC. and it’s time to vote!

You have the right to vote on proposals being presented at the Annual Meeting. This is an important notice regarding the availability of proxy materials for the shareholder meeting to be held on June 13, 2024.

Get informed before you vote

View the Annual Report and Notice and Proxy Statement online OR you can receive a free paper or email copy of the material(s) by requesting prior to May 30, 2024. If you would like to request a copy of the material(s) for this and/or future shareholder meetings, you may (1) visit www.ProxyVote.com, (2) call 1-800-579-1639 or (3) send an email to sendmaterial@proxyvote.com. If sending an email, please include your control number (indicated below) in the subject line. Unless requested, you will not otherwise receive a paper or email copy.

  

*Please check the meeting materials for any special requirements for meeting attendance.

Vote at www.ProxyVote.com

THIS IS NOT A VOTABLE BALLOT

This is an overview of the proposals being presented at the

upcoming shareholder meeting. Please follow the instructions on

the reverse side to vote these important matters.

Voting Items				Board Recommends
1.	Election of Directors Nominees:
	01)	Victor D. Grizzle	05)  Wayne R. Shurts	For
	02)	Richard D. Holder	06)  Roy W. Templin
	03)	Barbara L. Loughran	07)  Cherryl T. Thomas
	04)	William H. Osborne
2.	To ratify the selection of KPMG LLP as our independent registered public accounting firm for 2024.			For
3.	To approve, on an advisory basis, our executive compensation program.			For
NOTE: Such other business as may properly come before the meeting or any adjournment thereof. In their discretion, the proxy holders are authorized to vote such other business as may properly come before the meeting or any postponement or adjournment thereof.

Prefer to receive an email instead? While voting on www.ProxyVote.com, be sure to click “Delivery Settings”.

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