Owens Corning (the "Company") is filing this Current Report on Form 8-K to update portions of its Annual Report on Form 10-K for the fiscal year ended December 31, 2008, filed on February 18, 2009 (the "2008 Form 10-K"), to reflect the following for all periods presented therein:

• A change in the method of accounting for inventories in the United States from the last-in, first-out ("LIFO") cost method to the first-in, first-out ("FIFO") cost method, which was effective during the first quarter 2009.

• The application of Statement of Financial Accounting Standards No. 160, "Noncontrolling Interests in Consolidated Financial Statements an Amendment of ARB 51," which was adopted by the Company effective January 1, 2009.

• The application of Statement of Financial Accounting Standards No. 161, "Disclosures about Derivative Instruments and Hedging Activities an amendment of FASB Statement No. 133," which was adopted by the Company effective January 1, 2009.

• A change in reportable segments, which was effective during the first quarter 2009.

The following updated Items of the 2008 Form 10-K are attached as exhibits hereto and incorporated herein by reference:

• Item 1 - Business

• Item 2 - Properties

• Item 6 - Selected Financial Data

• Item 7 - Management's Discussion and Analysis of Financial Condition and Results of Operations

• Item 8 - Financial Statements and Supplementary Data

• Item 15 - The following Financial Statement Schedules and Exhibits:

• Schedule II - Valuation and Qualifying Accounts

• Ratio of Earnings to Fixed Charges

No Items of the 2008 Form 10-K other than those identified above are being updated by this filing. Information in the 2008 Form 10-K is generally stated as of December 31, 2008 and this filing does not reflect any subsequent information or events other than the updates described above. More current information is contained in the Company's Quarterly Report on Form 10-Q for the quarterly period ended March 31, 2009 and other filings with the Securities and Exchange Commission. This Current Report on Form 8-K should be read in conjunction with the 2008 Form 10-K and such Quarterly Report on Form 10-Q and other filings. The Form 10-Q and other filings contain important information regarding events, developments and updates to certain expectations of the Company that have occurred since the filing of the 2008 Form 10-K.

(d) Exhibits.

Exhibit No.       Description
23.1              Consent of PricewaterhouseCoopers LLP

99.1              Item 1 - Business

99.2              Item 2 - Properties

99.3              Item 6 - Selected Financial Data

99.4              Item 7 - Management's Discussion and Analysis of Financial
                  Condition and Results of Operations

99.5              Item 8 - Financial Statements and Supplementary Data

99.6              Item 15 - Schedule II - Valuation and Qualifying Accounts

99.7              Item 15 - Ratio of Earnings to Fixed Charges