Armstrong Flooring (AFIIQ) 10-Q 2017 Q2 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 June 30, 2017 of Armstrong Flooring, Inc. (the “Company”) as filed with the Securities and Exchange Commission on the date hereof (the “Report”), Kimberly Z. Boscan, as Interim 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/ Kimberly Z. Boscan

Kimberly Z. Boscan

Interim Chief Financial Officer, Vice President and Controller

(Principal Financial Officer and Principal Accounting Officer)

August 7, 2017