Armstrong Flooring (AFIIQ) 10-Q 2019 Q3 Quarterly report

Exhibit 32.2

Certification of CFO Pursuant to

18 U.S.C. Section 1350,

As Adopted Pursuant to

Section 906 of the Sarbanes-Oxley Act of 2002

In connection with the Quarterly Report on Form 10-Q for the period ended September 30, 2019 of Armstrong Flooring, Inc. (the “Company”) as filed with the Securities and Exchange Commission on the date hereof (the “Report”), Douglas B. Bingham, as Chief Financial Officer of the Company, hereby certifies, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to his knowledge:

(1) The Report fully complies with the requirements of Section 13(a) or Section 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the

Company.

/s/ Douglas B. Bingham

Douglas B. Bingham

Senior Vice President, Chief Financial Officer and Treasurer

(Principal Financial Officer)

November 5, 2019