Armstrong World Industries Announces Closing of the Secondary Public Offering of Common Shares

Armstrong World Industries Announces Closing of the Secondary Public Offering
                               of Common Shares

PR Newswire

LANCASTER, Pa., Nov. 14, 2012

LANCASTER, Pa., Nov. 14, 2012 /PRNewswire/ -- Armstrong World Industries, Inc.
(NYSE: AWI) (the "Company") announced today the closing of a secondary public
offering of 5,200,000 common shares held by The Armstrong World Industries,
Inc. Asbestos Personal Injury Settlement Trust and Armor TPG Holdings, L.P.
(together, the "Selling Shareholders") at a price of $51.00 per share. The
underwriters will have a 30-day option to purchase up to an additional 780,000
common shares from the Selling Shareholders.The Company itself has not sold
any shares and has not received any proceeds from the offering.

BofA Merrill Lynch, Barclays, Citigroup, Deutsche Bank Securities, Goldman,
Sachs & Co. and J.P. Morgan were the joint book-running managers of the
offering. RBC Capital Markets, Scotiabank and SunTrust Robinson Humphrey acted
as co-managers.

The shares were offered pursuant to the Company's effective registration
statement on Form S-3 previously filed with the U.S. Securities and Exchange
Commission (the "SEC"). The Company has also filed with the SEC a final
prospectus with respect to this offering. This press release shall not
constitute an offer to sell or a solicitation of an offer to buy, nor shall
there be any sale of these securities in any state or jurisdiction in which
such an offer, solicitation or sale would be unlawful prior to registration or
qualification under the securities laws of any such state or jurisdiction.

The offering was made only by means of a prospectus. Copies of the final
prospectus relating to the offering may be obtained from: BofA Merrill Lynch,
222 Broadway, New York, NY 10038, Attn: Prospectus Department or e-mail
dg.prospectus_requests@baml.com; Barclays, c/o Broadridge Financial Solutions,
1155 Long Island Avenue, Edgewood, New York 11717, or by e-mail at
barclaysprospectus@broadridge.com or by phone at (888) 603-5847.

About Armstrong

Armstrong World Industries, Inc. is a global leader in the design and
manufacture of floors and ceilings. Based in Lancaster, Pa., Armstrong
operates 32 plants in eight countries and has approximately 8,500 employees
worldwide.

SOURCE Armstrong World Industries, Inc.

Website: www.armstrong.com
Contact: Investor Relations: Tom Waters, +1-717-396-6354, or Media Relations:
Jennifer Johnson, 1 (866) 321-6677 (US media)