UPDATE: Eagle Materials Offering 3M Shares

Eagle Materials Inc.

(the Company) today announced the commencement of an underwritten public offering of 3,000,000 shares of its common stock. The Company will grant to the underwriters a 30-day option to purchase up to an additional 450,000 shares of its common stock to cover overallotments, if any. The Company intends to use the net proceeds from this offering, together with borrowings under its bank credit facility, to fund its previously announced and pending acquisition of certain assets from Lafarge North America Inc. and certain of its subsidiaries. The Company expects to close such acquisition in November or December 2012, subject to customary closing conditions.