MANAGEMENT ACHIEVEMENT PLAN

                    PLAN TEXT AND ADMINISTRATIVE GUIDELINES


                         ADOPTED BY BOARD OF DIRECTORS

                               NOVEMBER 28, 1983



                         AS AMENDED FEBRUARY 25, 1985

                         AS AMENDED FEBRUARY 23, 1987

                         AS AMENDED NOVEMBER 30, 1987

                         AS AMENDED NOVEMBER 28, 1988

                         AS AMENDED FEBRUARY 25, 1991

                         AS AMENDED NOVEMBER 25, 1991

                         AS AMENDED NOVEMBER 30, 1992

                         AS AMENDED SEPTEMBER 27, 1993

                         AS AMENDED NOVEMBER 24, 1993

                         AS AMENDED FEBRUARY 22, 1994

                         AS AMENDED NOVEMBER 21, 1994

                         AS AMENDED DECEMBER 17, 1995

                         AS AMENDED FEBRUARY 25, 1996

                         AS AMENDED DECEMBER 16, 1996

                         AS AMENDED DECEMBER 14, 1997

                         AS AMENDED DECEMBER 14, 1998

 
                       ARMSTRONG WORLD INDUSTRIES, INC.
                       --------------------------------

                MANAGEMENT ACHIEVEMENT PLAN FOR KEY EXECUTIVES
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                                  (PLAN TEXT)
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1. Purpose
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   The Armstrong World Industries, Inc. (the "Company") Management Achievement
   Plan (the "Plan") is designed to promote the financial success of the Company
   by recognizing the significant contributions individual employees can make to
   the achievement of Company goals. Its objectives are to motivate key Company
   and subsidiary employees to produce outstanding results by providing the
   opportunity to earn financial rewards in relation to the attainment of
   corporate and business unit goals.

   The Plan is based on the concept that the Company establishes for each
   participant at the beginning of the year a target incentive award based on
   the achievement of specific corporate and business unit goals. When the year
   is over, the results actually achieved will be evaluated against these goals
   to determine the amount, if any, of additional compensation earned by
   individuals participating in the Plan.

2. Administration
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   The Plan shall be administered by the Management Development and Compensation
   Committee (the "Committee") of the Board of Directors with the advice and
   counsel of the Chief Executive Officer of the Company. Designated subsidiary
   companies may adopt this Plan.

3. Eligibility
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   The intent of the Plan is to extend participation only to those key employees
   whose duties and responsibilities give them the opportunity to make a
   continuing material and substantial impact on the achievement of organization
   goals. The Chief Executive Officer will annually determine the non-officer
   participants and recommend officer participants to the Committee.

 
4.   Incentive Awards
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     A)   At the beginning of each year, the Chief Executive Officer shall
          present to the Committee criteria for evaluating performance against
          corporate and business unit goals for the purposes of determining the
          incentive awards which shall be paid for the year.

     B)   At the same time, the Chief Executive Officer shall recommend to the
          Committee a target award expressed as a percentage of salary for each
          participant.

     C)   As soon as practical following the close of each year, the Chief
          Executive Officer shall evaluate the levels of corporate and business
          unit achievement and recommend to the Committee the incentive amount
          earned by the participants.

     D)   Absent specific Board authorization to the contrary, no awards under
          the corporate achievement segment of the Plan shall be authorized as
          to any year in which the consolidated Company results fail to achieve
          a minimum return on stockholders' equity of 8.5%.

     E)   The incentive award determined in accordance with the provisions of
          Paragraphs A through D of this Section 4 shall be reduced for such
          year as follows for Plan participants who are eligible to participate
          in the Bonus Replacement Retirement Plan of Armstrong World
          Industries, Inc.:

            (1)  If a Plan participant's grade level is at least 1200 but not
                 higher than 1459 as of January 1 of the calendar year for which
                 the incentive award is determined, the incentive award
                 otherwise payable shall be reduced by the lesser of (i) 50% of
                 the amount determined under Paragraphs A through D, (ii) $7,500
                 or (iii) the authorized contribution to the Bonus Replacement
                 Retirement Plan.

            (2)  If a Plan participant's grade level is at least 1460 but not
                 higher than 1929 as of January 1 of the calendar year for which
                 the incentive award is determined, the

 
                                      -2-

          incentive award otherwise payable shall be reduced by the lesser of
          (i) 50% of the amount determined under Paragraphs A through D, (ii)
          $15,000 or (iii) the authorized contribution to the Bonus Replacement
          Retirement Plan.

     (3)  If a Plan participant's grade level is at least 1930 as of January 1
          of the calendar year for which the incentive award is determined, the
          incentive award otherwise payable shall be reduced by the lesser of
          (i) 50% of the amount determined under Paragraphs A through D, (ii)
          $20,000 or (iii) the authorized contribution to the Bonus Replacement
          Retirement Plan.

5. Time of Payment
   ---------------
   Awards under this Plan shall be paid as soon as practicable after the yearly
   financial results have been determined.

6. Miscellaneous Provisions
   ------------------------

   A)  Condition of Award - Plan participants who terminate employment for
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       reasons other than retirement, disability, death or involuntary
       termination not for cause prior to the completion of the Plan year are
       not entitled to receive any awards under this Plan. Plan participants who
       retire, become disabled, die or are involuntarily terminated for reasons
       other than cause on or after the last workday of March may be eligible
       for awards on a prorated basis.

 
                                      -3-

     B)   No Assignment or Transfer - Awards are payable only to the
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          participant, except in the case of death or legal incapacity at the
          time of payment, award may be paid to his heirs, estate or legal
          guardian. No awards under the Plan or any rights or interests therein
          shall be assignable or transferable by a participant.

     C)   No Rights to Awards - No employee or other person shall have any claim
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          or right to be granted an award under the Plan. Neither the Plan nor
          any action taken hereunder shall be construed as giving any employee
          any right to be retained in the employ of the Company or any of its
          subsidiaries.

     D)   Withholding Taxes - The Company shall have the right to deduct from
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          all awards hereunder paid all taxes required by law to be withheld
          with respect to such awards.

     E)   Funding of Plan - The Company shall not be required to establish any
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          special or separate fund or to make any other segregation of assets to
          assure the payment of any award under the Plan.

7.   Effective Date of the Plan
     --------------------------

     The effective date of the Plan shall be November 28, 1983.