Summary of LOUISIANA-PACIFIC CORP

Item 2.02 Results of Operations and Financial Condition.

The information in this Form 8-K and Exhibit 99.1, attached hereto, is being furnished to the Securities and Exchange Commission and shall not be deemed "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, except as shall be expressly set forth by specific reference in such filing.

On November 3, 2009 Louisiana - Pacific Corporation issued a press release announcing financial results for the quarter ended September 30, 2009, a copy of which is attached hereto as Exhibit 99.1 and incorporated herein by reference.

In addition to disclosing financial results calculated in accordance with U.S. generally accepted accounting principles ("GAAP"), the attached press release discloses (1) continuing earnings (losses) before interest, taxes and depreciation and amortization ("EBITDA from continuing operations"); (2) income
(loss) from continuing operations excluding (gain) loss on sale or impairment of long-lived assets and other operating credits and charges, net, early debt extinguishment and other than temporary investment impairment and (3) continuing earnings (losses) before interest, taxes, depreciation and amortization adjusted for (gain) loss on sale or impairment of long-lived assets, other operating credits and charges, net, gain (loss) on early debt extinguishment, stock based compensation and other than temporary investment impairment ( "Adjusted EBITDA from continuing operations") each of which is a non-GAAP financial measure. None of these non-GAAP financial measures are a substitute for the GAAP measure of net income from continuing operations or operating cash flows or any other GAAP financial measures.

We have EBITDA from continuing operations and Adjusted EBITDA from continuing operations in the press release because we use them as important supplemental measures of our performance and believe that similar measures are frequently used by securities analysts, investors and other interested persons in the evaluation of companies in our industry, some of which present similar titled measures when reporting their results. We use EBITDA from continuing operations and Adjusted EBITDA from continuing operations to evaluate our performance as compared to other companies in our industry that have different financing and capital structures and/or tax rates. It should be noted that companies calculate similar titled measures differently and, therefore, as presented for us may not be comparable to similar titled measures reported by other companies. In addition, EBITDA from continuing operations has material limitations as a performance measure because it excludes interest, income tax (benefit) expense, depreciation and amortization which are necessary to operate our business or which we otherwise incurred or experienced in connection with the operation of our business.

We believe that income (loss) from continuing operations excluding (gain) loss on sale or impairment of long lived assets and other operating credits and charges, net early debt extinguishment and other than temporary investment impairment is a useful measure for evaluating our ability to generate earnings from continuing

operations and that providing this measure will allow investors to more readily compare the earnings referred to in the press release to our earnings for past and future periods. We believe that this measure is particularly useful where the amounts of the excluded items are not consistent between the periods presented. It should be noted that other companies may present similarly-titled measures differently and, therefore, as presented by us may not be comparable to similarly-titled measures reported by other companies. In addition, income
(loss) from continuing operations excluding (gain) loss on sale or impairment of long-lived assets and other operating credits and charges, net, early debt extinguishment and other than temporary investment impairment, has material limitations as a performance measure because it excludes items that are actually incurred or experienced in connection with the operations of our business.