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Preliminary Proxy Statement

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Definitive Proxy Statement

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Definitive Additional Materials

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ARMSTRONG FLOORING, INC.

ARMSTRONG FLOORING, INC.

CHRISTOPHER S. PARISI

2500 COLUMBIA AVENUE

P.O. BOX 3025

LANCASTER, PA 17603

Meeting Information

Meeting Type:          Annual Meeting

For holders as of:     April 9, 2018

Date:   June 1, 2018   Time: 9:00 a.m.

Location: Meeting live via the Internet-please visit www.virtualshareholdermeeting.com/AFI2018.

The company will be hosting the meeting live via the Internet this year. To attend the meeting via the Internet please visit www.virtualshareholdermeeting.com/AFI2018 and be sure to have the information that is printed in the box marked by the arrow (located on the following page).

You are receiving this communication because you hold shares in the company named above.

This is not a ballot. You cannot use this notice to vote these shares. This communication presents only an overview of the more complete proxy materials that are available to you on the Internet. You may view the proxy materials online at www.proxyvote.com or easily request a paper copy (see reverse side).

We encourage you to access and review all of the important information contained in the proxy materials before voting.

See the reverse side of this notice to obtain proxy materials and voting instructions.

Proxy Materials Available to VIEW or RECEIVE:

NOTICE AND PROXY STATEMENT         ANNUAL REPORT

How to View Online:

Have the information that is printed in the box marked by the arrow   (located on the following page) and visit: www.proxyvote.com.

How to Request and Receive a PAPER or E-MAIL Copy:

If you want to receive a paper or e-mail copy of these documents, you must request one. There is NO charge for requesting a copy. Please choose one of the following methods to make your request:

1) BY INTERNET:           www.proxyvote.com

2) BY TELEPHONE:       1-800-579-1639

3) BY E-MAIL*:              sendmaterial@proxyvote.com

* If requesting materials by e-mail, please send a blank e-mail with the information that is printed in the box marked by the arrow (located on the following page) in the subject line.

Requests, instructions and other inquiries sent to this e-mail address will NOT be forwarded to your investment advisor.  Please make the request as instructed above on or before May 18, 2018 to facilitate timely delivery.

— How To Vote —

Please Choose One of the Following Voting Methods

Vote By Internet:

Before The Meeting:

Go to www.proxyvote.com. Have the information that is printed in the box marked by the arrow

(located on the following page) available and follow the instructions.

During The Meeting:

Go to www.virtualshareholdermeeting.com/AFI2018. Have the information that is printed in the box marked by the arrow (located on the following page) available and follow the instructions.

Vote By Mail: You can vote by mail by requesting a paper copy of the materials, which will include a proxy card.

Voting Items

The Board of Directors recommends you vote

FOR each of the nominees named in Proposal 1.

The Board of Directors recommends you vote

FOR Proposals 2 and 3.

1.    Election of Directors (nominees 1a, 1b, 1c, 1d, 1e, and 1f) to serve for a one-year term.

Nominees:

1a.    Kathleen S. Lane

1b.    Jeffrey Liaw

1c.    Donald R. Maier

1d.    Michael W. Malone

1e.    James J. O'Connor

1f.     Jacob H. Welch

2.    Advisory Vote to Approve Named Executive Officer Compensation.

3.    Ratification of election of KPMG LLP as the Company's Independent Registered Public Accounting Firm.

NOTE: To transact other business as may properly come before the meeting or any adjournment or postponement thereof.