Summary of NCI BUILDING SYSTEMS INC

Item 8.01. Other Events

On September 29, 2009, in conformity with the requirements of the New York Stock Exchange, NCI Building Systems, Inc. (the "Company") sent a letter to its stockholders notifying them of its intention to carry out the transactions contemplated by the Investment Agreement, dated as of August 14, 2009, by and between the Company and Clayton, Dubilier & Rice Fund VIII, L.P., which was subsequently amended on August 28, 2009 and on August 31, 2009, without seeking stockholder approval. On the same day, the Company issued a press release announcing the mailing of the letter. Copies of the letter and the press release are attached hereto as Exhibits 99.1 and 99.2 respectively and are incorporated by reference herein.

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Important Information About this Communication

This current report and its contents is not an offer to sell or purchase or an offer to exchange or a solicitation of acceptance of an offer to sell or purchase or offer to exchange. Any such offer or solicitation shall be made solely by means of the prospectus, related letter of transmittal and other offer documents, as described below.

In connection with the commencement of the exchange offer by the Company to acquire all of the Company's outstanding 2.125% Convertible Senior Subordinated Notes due 2024 (the "convertible notes"), issued under that indenture, dated as of November 16, 2004, between the Company and The Bank of New York, as trustee, in exchange for cash and shares of Company common stock, the Company has filed with the U.S. Securities and Exchange Commission (the "SEC") a registration statement on Form S-4 (which includes a prospectus) and amendment thereto, a tender offer statement on Schedule TO and amendment thereto and related documents and materials. Investors and security holders are strongly urged to carefully review the registration statement, the prospectus, the tender offer statement and any statements thereto and the other related documents and materials filed with the SEC, including the final prospectus described below, when available, as well as any amendments and supplements thereto, when available, because they will contain important information about the Company, the proposed exchange offer and related transactions and are the sole means by which any offer to exchange or sell, or any solicitation of any such offers, will be made.

The registration statement contains a prospectus and related transmittal materials that have been mailed to holders of the convertible notes. Investors and security holders may obtain a free copy of the registration statement, prospectus and transmittal materials, as well as amendments thereto and other documents filed by the Company with the SEC, at the SEC's web site, www.sec.gov. Prior to the completion of the exchange offer, the registration statement must become effective under the securities laws, and after effectiveness, the Company will file with the SEC the final prospectus. Investors and security holders are strongly urged to carefully review the final prospectus when it is available. Free copies of the Company's filings with the SEC may also be obtained from the Company's Investor Relations Department at P.O. Box 692055, Houston, Texas 77269-2055 or by phone at (281) 897-7788.