AMENDMENT NO. 1 DATED AS OF FEBRUARY 27, 1998 TO CREDIT AGREEMENT DATED AS OF JUNE 26, 1997 This Amendment No. 1 dated as of February 27, 1998 (the "Amendment") is to the Credit Agreement dated as of June 26, 1997 (the "Credit Agreement") among Owens Corning, the other Borrowers and Guarantors parties thereto, the Banks parties thereto and Credit Suisse First Boston, as Agent. Terms defined in the Credit Agreement will have the same meanings when used in this Amendment. Owens Corning, the other Loan Parties, the Banks, and the Agent hereby agree as follows: 1. Reduction of Commitments. (a) Effective as of the date hereof, the total amount of the Commitments is reduced from $2,000,000,000 to $1,800,000,000. (b) The $200,000,000 reduction of the Commitments pursuant to the preceding paragraph (a) constitutes a reduction of the Commitments of $200,000,000 as referred to in Section 5.01(b)(iii) of the Agreement and, therefore, the Commitments shall not hereafter be required to be further reduced pursuant to either Section 5.01(b)(i) or Section 5.01(b)(ii) of the Agreement. 2. Interest Coverage Ratio. Section 8.15 of the Agreement is hereby amended to read as follows: "Section 8.15 Interest Coverage Ratio. Commencing with the fiscal quarter ending September 30, 1997, permit the ratio of Consolidated Adjusted EBITDA to Consolidated Interest Expense as of the last day of any fiscal quarter to be less than the following respective amounts for the period of four consecutive fiscal quarters of the Company ending on the last day of the respective fiscal quarters ending on the following dates (treating those four consecutive fiscal quarters as a single period for the purpose of determining such ratio): Fiscal Quarter Ending Ratio March 31, 1998 2.5 to 1.0 June 30, 1998 and September 30, 1998 2.25 to 1.0 Each other March 31, June 30, September 30 and December 31 3.0 to 1.0" 3. Leverage Ratio. Section 8.16 of the Agreement is hereby amended to delete the date "June 30, 1998" and to insert in lieu thereof the date "December 31, 1998" and to delete the date "July 1, 1998" and to insert in lieu thereof the date "January 1, 1999". 4. Guaranteed Receivables. In Section 15.01(a) of the Agreement, clause (C) of the definition of "Debt" is hereby amended to delete the words "Domestic Subsidiary" each time that such words appear and to insert in lieu thereof the words "Loan Party". 5. Designated Subsidiary Borrowers. Effective as of the date hereof, each of the following Subsidiaries of the Company shall become and be a Designated Subsidiary Borrower: Owens-Corning Fiberglas (U.K.) Ltd. Owens-Corning Building Products (U.K.) Ltd. Owens Corning Polyfoam UK Ltd. Owens-Corning Isolation France S.A. 6. Agreement Continues. Except as expressly amended hereby, the Agreement shall remain in full force and effect. Each reference in the Agreement and the other Loan Documents to the "Agreement" shall be a reference to the Agreement as amended hereby. The amendments set forth above shall not be deemed to be a consent to any other waiver or amendment in respect of the Agreement or any other Loan Document. 7. Representations and Warranties. In order to induce the Banks and the Agent to enter into this Amendment, the Company hereby represents and warrants to the Banks and the Agent that (a) it has full power, capacity, right and legal authority to execute, deliver and perform its obligations under this Amendment and the Agreement as amended hereby and has taken all action necessary to authorize the execution and delivery of, and the performance of its obligations under, this Amendment and the Agreement as amended hereby, (b) this Amendment and the Agreement as amended hereby constitute its legal, valid and binding obligations enforceable against it in accordance with their respective terms, subject to the effect of any applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting the rights of creditors generally, (c) the representations and warranties contained in the Agreement are true and correct on and as of the date hereof as though made on and as of the date hereof, and (d) n o Default or Event of Default has occurred and is continuing, or would result from the execution, delivery and performance by it of this Amendment or the Agreement as amended hereby. 8. Effectiveness. Pursuant to Section 13.05(a) of the Agreement, this Amendment shall become effective upon execution hereof by the Company and the Majority Banks. 9. Governing Law. Pursuant to New York General Obligations Law Section 5-1401, this Amendment shall be governed by the law of the State of New York. 10. Counterparts. This Amendment may be signed in any number of counterparts, each of which shall be an original, with the same effect as if the signatures thereto and hereto were upon the same instrument. 11. Entire Agreement. This Amendment embodies the entire agreement among the Company, each other Loan Party, the Banks and the Agent with respect to the subject matter hereof and supercedes all prior agreements, representations and understandings, if any, relating to the subject matter hereof. IN WITNESS WHEREOF, the parties hereto have caused this Amendment No. 1 to be executed by their duly authorized officers as of the day and year first written above. OWENS CORNING By___________________________ Name: Title: By___________________________ Name: Title: CREDIT SUISSE FIRST BOSTON, as Agent and as a Bank By___________________________ Name: Title: By___________________________ Name: Title: ARAB BANK PLC By:_________________________________ Name: Title: By:_________________________________ Name: Title: BANK OF AMERICA ILLINOIS By:_________________________________ Name: Title: By:_________________________________ Name: Title: THE BANK OF NEW YORK By:_________________________________ Name: Title: By:_________________________________ Name: Title: THE BANK OF NOVA SCOTIA By:_________________________________ Name: Title: By:_________________________________ Name: Title: THE BANK OF TOKYO-MITSUBISHI, LTD. CHICAGO BRANCH By:_________________________________ Name: Title: By:_________________________________ Name: Title: BANQUE FRANCAISE DU COMMERCE EXTERIEUR By:_________________________________ Name: Title: By:_________________________________ Name: Title: BANQUE NATIONALE DE PARIS By:_________________________________ Name: Title: By:_________________________________ Name: Title: BARCLAYS BANK PLC By:_________________________________ Name: Title: By:_________________________________ Name: Title: CREDIT AGRICOLE INDOSUEZ By:_________________________________ Name: Title: By:_________________________________ Name: Title: THE CHASE MANHATTAN BANK By:_________________________________ Name: Title: By:_________________________________ Name: Title: CIBC, INC. By:_________________________________ Name: Title: By:_________________________________ Name: Title: CITIBANK N.A. By:_________________________________ Name: Title: By:_________________________________ Name: Title: COMPAGNIE FINANCIERE DE CIC ET DE L'UNION EUROPEENNE By:_________________________________ Name: Title: By:_________________________________ Name: Title: CREDIT COMMUNAL DE BELGIQUE S.A. By:_________________________________ Name: Title: By:_________________________________ Name: Title: CREDIT LYONNAIS CHICAGO BRANCH By:_________________________________ Name: Title: By:_________________________________ Name: Title: DAI-ICHI KANGYO BANK, LTD. CHICAGO BRANCH By:_________________________________ Name: Title: By:_________________________________ Name: Title: DRESDNER BANK AG NEW YORK AND GRAND CAYMAN BRANCHES By:_________________________________ Name: Title: By:_________________________________ Name: Title: THE FIRST NATIONAL BANK OF CHICAGO By:_________________________________ Name: Title: By:_________________________________ Name: Title: FLEET NATIONAL BANK By:_________________________________ Name: Title: By:_________________________________ Name: Title: THE FUJI BANK, LIMITED By:_________________________________ Name: Title: By:_________________________________ Name: Title: GENERALE BANK NEW YORK BRANCH By:_________________________________ Name: Title: By:_________________________________ Name: Title: THE INDUSTRIAL BANK OF JAPAN, LIMITED By:_________________________________ Name: Title: By:_________________________________ Name: Title: ISTITUTO BANCARIO SAN PAOLO DI TORINO, S.P.A., NEW YORK BRANCH By:_________________________________ Name: Title: By:_________________________________ Name: Title: KEYBANK NATIONAL ASSOCIATION By:_________________________________ Name: Title: By:_________________________________ Name: Title: KREDIETBANK N.V., GRAND CAYMAN BRANCH By:_________________________________ Name: Title: By:_________________________________ Name: Title: THE LONG-TERM CREDIT BANK OF JAPAN, LTD. By:_________________________________ Name: Title: MELLON BANK, N.A. By:_________________________________ Name: Title: By:_________________________________ Name: Title: MERCANTILE BANK N.A. By:_________________________________ Name: Title: By:_________________________________ Name: Title: THE MITSUBISHI TRUST AND BANKING CORPORATION, CHICAGO BRANCH By:_________________________________ Name: Title: By:_________________________________ Name: Title: THE MITSUI TRUST AND BANKING COMPANY, LIMITED, NEW YORK BRANCH By__________________________________ Name: Title: MORGAN GUARANTY TRUST COMPANY OF NEW YORK By:_________________________________ Name: Title: By:_________________________________ Name: Title: NATIONSBANK, N.A. By:_________________________________ Name: Title: By:_________________________________ Name: Title: THE NORTHERN TRUST COMPANY By:_________________________________ Name: Title: By:_________________________________ Name: Title: PNC BANK, NATIONAL ASSOCIATION By:_________________________________ Name: Title: By:_________________________________ Name: Title: ROYAL BANK OF CANADA By:_________________________________ Name: Title: By:_________________________________ Name: Title: THE SAKURA BANK, LIMITED NEW YORK BRANCH By:_________________________________ Name: Title: By:_________________________________ Name: Title: THE SANWA BANK, LIMITED, CHICAGO BRANCH By:_________________________________ Name: Title: By:_________________________________ Name: Title: SOCIETE GENERALE By:_________________________________ Name: Title: By:_________________________________ Name: Title: STANDARD CHARTERED BANK By:_________________________________ Name: Title: By:_________________________________ Name: Title: THE SUMITOMO BANK, LTD. By:_________________________________ Name: Title: By:_________________________________ Name: Title: SUMITOMO BANK OF CALIFORNIA By:_________________________________ Name: Title: By:_________________________________ Name: Title: THE SUMITOMO TRUST & BANKING CO., LTD. NEW YORK BRANCH By:_________________________________ Name: Title: By:_________________________________ Name: Title: SUNTRUST BANK, ATLANTA By:_________________________________ Name: Title: By:_________________________________ Name: Title: THE TORONTO DOMINION (TEXAS), INC. By:_________________________________ Name: Title: By:_________________________________ Name: Title: WACHOVIA BANK OF GEORGIA By:_________________________________ Name: Title: By:_________________________________ Name: Title: WELLS FARGO BANK (TEXAS), NATIONAL ASSOCIATION By:_________________________________ Name: Title: By:_________________________________ Name: Title: WESTDEUTSCHE LANDESBANK GIROZENTRALE NEW YORK BRANCH By:_________________________________ Name: Title: By:_________________________________ Name: Title: BANK OF TOKYO-MITSUBISHI (CANADA) By:_________________________________ Name: Title: By:_________________________________ Name: Title: FIRST CHICAGO NBD BANK CANADA By:_________________________________ Name: Title: By:_________________________________ Name: Title: THE BANK OF NOVA SCOTIA By:_________________________________ Name: Title: By:_________________________________ Name: Title: THE CHASE MANHATTAN BANK OF CANADA By:_________________________________ Name: Title: By:_________________________________ Name: Title: CANADIAN IMPERIAL BANK OF COMMERCE By:_________________________________ Name: Title: By:_________________________________ Name: Title: CREDIT SUISSE FIRST BOSTON CANADA By:_________________________________ Name: Title: By:_________________________________ Name: Title: MELLON BANK CANADA By:_________________________________ Name: Title: By:_________________________________ Name: Title: ROYAL BANK OF CANADA By:_________________________________ Name: Title: By:_________________________________ Name: Title: SOCIETE GENERALE (CANADA) By:_________________________________ Name: Title: By:_________________________________ Name: Title: EUROPEAN OWENS-CORNING FIBERGLAS S.A. By:_________________________________ Name: Michael I. Miller Title: Authorized Signatory N.V. OWENS-CORNING S.A. By:_________________________________ Name: Michael I. Miller Title: Authorized Signatory OWENS-CORNING CANADA INC. By:_________________________________ Name: Michael I. Miller Title: Authorized Signatory OWENS-CORNING UK HOLDINGS LTD. By:_________________________________ Name: Michael I. Miller Title: Authorized Signatory SIERRA CORP. By:_________________________________ Name: Michael I. Miller Title: Authorized Signatory FALCON FOAM CORPORATION, as Guarantor By:_________________________________ Name: Michael I. Miller Title: Authorized Signatory IPM INC., as Guarantor By:_________________________________ Name: Michael I. Miller Title: Authorized Signatory OWENS-CORNING FIBERGLAS SWEDEN INC., as Guarantor By:_________________________________ Name: Michael I. Miller Title: Authorized Signatory OWENS-CORNING FIBERGLAS TECHNOLOGY INC., as Guarantor By:_________________________________ Name: Michael I. Miller Title: Authorized Signatory SOLTECH, INC., as Guarantor By:_________________________________ Name: Michael I. Miller Title: Authorized Signatory UC INDUSTRIES, INC., as Guarantor By:_________________________________ Name: Michael I. Miller Title: Authorized Signatory WESTERN FIBERGLASS OF TEXAS, INC., as Guarantor By:_________________________________ Name: Michael I. Miller Title: Authorized Signatory Each of the undersigned Subsidiaries of Owens Corning hereby acknowledges that, pursuant to the Amendment No. 1 set forth above, it has become a "Designated Subsidiary Borrower" under the Credit Agreement referred to in such Amendment and hereby agrees to become and be a party to, and bound by, such Credit Agreement as a Designated Subsidiary Borrower on the terms and conditions thereof. OWENS-CORNING FIBERGLAS (U.K.) LTD. By___________________________ Michael I. Miller Authorized Signatory OWENS-CORNING BUILDING PRODUCTS (U.K.) LTD. By___________________________ Michael I. Miller Authorized Signatory OWENS CORNING POLYFOAM UK LTD. By___________________________ Michael I. Miller Authorized Signatory OWENS-CORNING ISOLATION FRANCE S.A. By___________________________ Michael I. Miller Authorized Signatory