FIRST AMENDMENT TO SECOND AMENDED AND RESTATED CREDIT AGREEMENT This First Amendment dated as of November 1, 1999 to Second Amended and Restated Credit Agreement dated as of August 16, 1999 by and among GIBRALTAR STEEL CORPORATION OF NEW YORK ("Borrower"), GIBRALTAR STEEL CORPORATION ("Company") and THE CHASE MANHATTAN BANK, as administrative agent ("Administrative Agent") for THE CHASE MANHATTAN BANK, FLEET NATIONAL BANK (formerly known as Fleet Bank), MELLON BANK, N.A., BANK OF AMERICA, N.A. (successor by merger to NATIONSBANK, NA.), KEYBANK NATIONAL ASSOCIATION, and HSBC BANK USA (formerly known as MARINE MIDLAND BANK) (collectively, "Existing Banks"). A. Preliminary Statement WHEREAS, the Borrower, the Company, the Administrative Agent and the Existing Banks are parties to a Second Amended and Restated Credit Agreement dated as of August 16, 1999 pursuant to which the Banks have agreed to extend credit to the Borrower ("Credit Agreement"); and WHEREAS, the Borrower, the Company and the Banks wish to (i) increase the maximum amount of the Revolving Credit, (ii) add PNC Bank, N.A. as a Bank under the Credit Agreement and (iii) amend certain other terms of the Credit Agreement; WHEREAS, unless otherwise defined herein, terms used in the Credit Agreement shall have such defined meanings when used herein; NOW, THEREFORE, in consideration of the premises and for other good and valuable consideration, receipt of which is hereby acknowledged, and upon satisfaction of the conditions set forth in Section C, below, the Banks, the Borrower, the Company, and the Administrative Agent, hereby agree as follows: B. Amendment 1. Section 1.1 of the Credit Agreement is amended so that the definition of "Bank" and "Banks" are amended to include PNC Bank, N.A. 2. Section 2.1 of the Credit Agreement is amended so that the phrase "Two Hundred Sixty Million Dollars ($260,000,000.00)" is deleted and the phrase "Two Hundred Eighty Million Dollars ($280,000,000.00)" is substituted in its place, each time it appears. 3. Section 2.2(a) of the Credit Agreement is amended so that "$260,000,000" is deleted and "$280,000,000" is substituted in its place. 4. The following are added as new subsections (e) and (f) to Section 10.1 of the Credit Agreement: "(e) which would release any material portion of the collateral described in the Security Agreements shall be made without the consent of each Bank; or (f) which would increase the total Commitments above $280,000,000." 5. Schedule 1 of the Credit Agreement is deleted in its entirety and replaced by Schedule 1 attached hereto. 6. Schedule 3.1(d) and Schedule 4.11 to the Credit Agreement are each amended to add the following: "Brazing Concepts Company, a Michigan corporation" 7. The Schedule attached hereto as Schedule 4.17 is attached to the Agreement as a new Schedule 4.17. C. Conditions. The effectiveness of this Agreement shall be conditioned upon the satisfaction of the following conditions: 1. The Borrower shall have executed and delivered to PNC Bank, N.A. a Revolving Note in the maximum principal amount of $20,000,000. 2. Brazing Concepts Company shall have executed and delivered to the Administrative Agent, for the benefit of the Banks, an unlimited continuing guaranty in form acceptable to the Administrative Agent and the Banks, guarantying payment of any and all indebtedness and obligations of the Borrower and/or the Company to the Banks. 3. The Borrower and/or the Company shall have paid all costs and expenses incurred by the Administrative Agent and the Banks in connection with the transactions contemplated by this Agreement including, without limitation, reasonable attorney's fees. D. Other Provisions 1. By execution of this Agreement, each of the Banks consents to the acquisition by Gibraltar of the stock of Brazing Concepts Company and waives any default under Section 6.7 of the Credit Agreement resulting from such acquisition. 2. Except as specifically set forth herein, the Credit Agreement shall remain in full force and effect and is hereby reaffirmed. The Borrower and the Company acknowledge that they are bound by all of the terms, covenants and conditions set forth in the Credit Agreement, and that, if there has occurred any Default or Event of Default, the Agent and the Banks shall have no obligation to make any Advances or Swingloans or to issue any Letters of Credit. If there has occurred a Default or an Event of Default, Agent and the Banks may condition the making of any subsequent Advances or Swingloans or the issuance of any Letters of Credit upon the execution and delivery by Borrower and Company of an amendment to the Credit Agreement which may include, without limitation, additional or revised covenants, an increased rate of interest on the Revolving Credit, increased Letter of Credit or other fees and such other terms, conditions and covenants as the Agent and the Banks may require. 3. The terms "Administrative Agent" and "Banks" as used herein shall include the successors and assigns of those parties and shall include PNC Bank, N.A. 4. This Agreement shall be construed under, and governed by, the internal laws of the State of New York without regard to its conflict of laws and rules which would make the laws of another jurisdiction applicable. 5. This Agreement may be executed in any number of counterparts, each of which when so executed and delivered shall be an original, but all such counterparts shall together constitute one and the same Agreement. [This space intentionally left blank] IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be signed by their duly authorized officers, all on the date hereof. Borrower: GIBRALTAR STEEL CORPORATION OF NEW YORK By: /s/ John E. Flint John E. Flint Vice President Company: GIBRALTAR STEEL CORPORATION By: /s/ John E. Flint John E. Flint Vice President THE CHASE MANHATTAN BANK, as Administrative Agent By:/s/ Robert J. McCardle Robert J. McArdle Vice President Consented to this 1st day of November, 1999 FLEET NATIONAL BANK (formerly known as Fleet Bank) By:/s/ John C. Wright Name: John C. Wright Title: Vice President Consented to this 1st day of November, 1999 MELLON BANK, N.A. By: /s/ Edward T. Kloeskery Name: Edward T. Kloeskery Title: Vice President Consented to this 1st day of November, 1999 BANK OF AMERICA, N.A (successor by Merger to NATIONSBANK, N.A.) By: /s/ Thomas Blake Name: Thomas Blake Title: Managing Director Consented to this 1 day of November, 1999 KEYBANK NATIONAL ASSOCIATION By: /s/ Mark F. Wachowiak Name: Mark F. Wachowiak Title: Assistant Vice President Consented to this 1st day of November, 1999 HSBC BANK USA (formerly known as MARINE MIDLAND BANK) By: /s/ William H. Graser Name: William H. Graser Title: Vice President Consented to this 1st day of November, 1999 PNC BANK, N.A. By: David B. Gookin Name: David B. Gookin Title: Vice President SCHEDULE 1 BANKS Name; Notice Address; Percentage Commitment LIBOR Lending Office 23.21429% $65,000,000.00 THE CHASE MANHATTAN BANK Notice Address: 2300 Main Place Tower Buffalo, New York 14202 Facsimile No. (716) 843-4939 Telephone No. (716) 858-1418 LIBOR Lending Office: Same as above. 17.85714% $50,000,000.00 FLEET BANK Notice Address: 10 Fountain Plaza, 9th Fl. Buffalo, New York 14202 Facsimile No. (716) 847-4491 Telephone No. (716) 847-7332 LIBOR Lending Office: Same as above. 14.28571% $40,000,000.00 MELLON BANK, N.A. Notice Addresses: Two Mellon Bank Center Pittsburgh, Pennsylvania 15259 Facsimile No. (412) 234-9010 Telephone No. (412) 234-1098 and 1128 State Street Erie, Pennsylvania 16501 Facsimile No. (814) 453-7273 Telephone No. (814) 453-7275 LIBOR Lending Office: Same as above. 8.92857% $25,000,000.00 BANK OF AMERICA, N.A. Notice Addresses: Bank of America Plaza Mail Code TX1-492-67-01 901 Main Street, 67th Floor Dallas, TX 75202 Facsimile: (214) 209-0980 Telephone: (214) 209-0193 LIBOR Lending Office: (Same as above) 14.28571% $40,000,000 KEYBANK NATIONAL ASSOCIATION Notice Address: 50 Fountain Plaza, 5th Floor Buffalo, New York 14202 Facsimile No. (716) 847-7897 Telephone No. (716) 847-2314 Libor Lending Office: 50 Fountain Plaza, 5th Floor Buffalo, New York 14202 Facsimile No. (716) 847-7897 Telephone No. (716) 847-2314 14.28571% $40,000,000 HSBC BANK USA Notice Address: One HSBC Center, Lobby Level Buffalo, New York 14203 Facsimile No. (716) 855-0384 Telephone No. (716) 841-2556 Libor Lending Office: Same as above 7.14286% $20,000,000 PNC BANK, N.A. Notice Address: 249 Fifth Avenue Pittsburgh, PA 15222-2707 Facsimile No. (412) 705-3232 Telephone No. (412) 762-6278 Schedule 4.17 To be Produced by Borrower; may include Liens on Real Estate and Equipment being assumed in connection with the acquisition.