*RETIREMENT BENEFIT EQUITY PLAN*
                                      OF
                       ARMSTRONG WORLD INDUSTRIES, INC.


     This Retirement Benefit Equity Plan has been authorized by the Board of
Directors of Armstrong World Industries, Inc. to be applicable effective on and
after January 1, 1976 to pay supplemental retirement benefits to certain
employees of the Company who have qualified or may qualify for benefits under
the Retirement Income Plan for Employees of Armstrong World Industries, Inc.

     All benefits payable under this Plan shall be paid out of the general
assets of the Company, or from a trust, if any, established by the Company for
the purpose of paying benefits under the Plan, the assets of which shall remain
subject to the claims of judgment creditors of the Company in accordance with
the provisions of any such trust.


Article 1.  Definitions

     1.01 "Board of Directors" shall mean the Board of Directors of the Company.

     1.02 "Committee" shall mean the Retirement Committee as provided for in
          Article 4.

     1.03 "Company" shall mean Armstrong World Industries, Inc. or any successor
          by merger, purchase or otherwise, with respect to its employees.  The
          term Company shall also mean any other company participating in the
          Retirement Income Plan with respect to its employees if such Company
          adopts this Plan.

     1.04 "Compensation" shall mean "compensation" as determined under the
          Retirement Income Plan without regard to limitations under Section
          401(a)(17) of the Internal Revenue Code plus amounts deferred under
          the Armstrong Deferred Compensation Plan, if any and amounts
          contributed by the Company to the Bonus Replacement Retirement Plan of
          Armstrong World Industries, Inc. (the "Bonus Replacement Plan") on
          behalf of a Member in the year in which such contribution is made.

     1.05 Effective Date" shall mean January 1, 1976.

     1.06 "Member" shall mean any person included in the membership of the Plan
          as provided in Article 2.

     1.07 "Plan" shall mean the Retirement Benefit Equity Plan of Armstrong
          World Industries, Inc. as described herein or as hereafter amended.

     1.08 "Retirement Income Plan" shall mean the Retirement Income Plan for
          Employees of Armstrong World Industries, Inc.

Article 2.  Membership

     2.01 Every person who was a member of the Plan as in effect on December 31,
          1982 shall remain a Member of the Plan on or after January 1, 1983.

     2.02 Every other employee of the Company shall become a Member of the Plan
          on the first day of the calendar year in which:

          (a)  his benefit calculated under the Retirement Income Plan exceeds
               the allowed benefit under Section 415 of the Internal Revenue
               Code,

          (b)  his compensation exceeds the maximum allowed under Section
               401(a)(17) of the Internal Revenue Code,

          (c)  he has compensation deferred under the terms of the Armstrong
               Deferred Compensation Plan,

* AMENDED THROUGH FEBRUARY 28, 1999

 
          (d)  he is a key executive designated by the Board of Directors, or
               its delegate, to receive credit for employment prior to his
               Company employment for purposes of calculating his Retirement
               Income Plan benefit, as provided under Section 3.01(a)(iii) of
               this Plan, or

          (e)  he has a contribution made on his behalf to the Bonus Replacement
               Plan.

     2.03 Membership under the Plan shall terminate if a Member's employment
          with the Company terminates unless at that time the Member is entitled
          to retirement income payments pursuant to the Retirement Income Plan.


Article 3.  Amount and Payment of Supplemental Benefits


     3.01 The supplemental benefits under this Plan shall be payable by the
          Company only with respect to a Member who has retired, died or
          otherwise terminated his employment with the Company and is entitled
          to benefits under the Retirement Income Plan; provided, however, that
          the benefit under Section 3.01(a)(iii) hereof shall not be payable
          (and the offset under Section 3.01(c) hereof shall not be applied)
          with respect to a Member described in Section 2.02(d) unless following
          his date of hire with the Company the Member remains employed by the
          Company for a period of at least 5 full years.  Any such supplemental
          benefits shall be payable from the general assets of the Company or
          from a trust, if any, established by the Company for the purpose of
          paying benefits under the Plan, the assets of which shall remain
          subject to the claims of judgment creditors of the Company in
          accordance with the provisions of any such trust.  The supplemental
          benefits under this Plan shall be payable under the same terms and
          conditions, including the same time, and to the same person as the
          benefits payable to or on account of a Member under the Retirement
          Income Plan.

          The amount of any supplemental benefits payable to or on account of a
          Member pursuant to this Plan shall be equal to (a) minus (b) minus
          (c), where:

          (a)  is the benefit calculated under the provisions of the Retirement
               Income Plan, but:

               (i)   disregarding any reduction in the amount of benefits under
                     the Retirement Income Plan attributable to any provision
                     therein incorporating limitations imposed by Section 415 of
                     the Internal Revenue Code or Section 401(a)(17) of the
                     Internal Revenue Code;

               (ii)  disregarding any reduction due to compensation deferred
                     under the Armstrong Deferred Compensation Plan;

               (iii) including, for purposes of calculating Total Service under
                     the Retirement Income Plan, years of employment for a
                     Member described in Section 2.02(d) which precede his
                     Company employment to the extent so designated by the Board
                     of Directors, or its delegate, at the time such individual
                     is designated as eligible for membership in the Plan;


               (iv)  including, for purposes of determining compensation, any
                     amounts contributed on a Member's behalf to the Bonus
                     Replacement Plan.

          (b)  is the actual amount of benefits payable to or on account of the
               Member as calculated under the Retirement Income Plan; and

          (c)  is the value of the benefit (excluding the portion of such
               benefit attributable to employee contributions) which is payable,
               which has been paid or which will become payable to a Member
               described in Section 2.02(d) from a qualified defined benefit
               plan to the extent such plan takes into account the period of
               employment described in Section 3.01(a)(iii).  In the event the
               Member has received, is receiving, or is scheduled to receive
               benefits from another such plan in any form other than a single
               life annuity or at a time other than when benefits commence under
               this Plan, the benefit to be taken into account under this

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               paragraph (c) shall be determined by the Company based on
               actuarial assumptions and factors reasonably utilized under the
               Retirement Income Plan as of the date of determination, or to the
               extent such factors or assumptions do not contemplate a
               particular situation which arises under this Plan, based upon the
               factors applied by the Pension Benefit Guaranty Corporation for
               purposes of determining the present value of benefit upon
               termination of a plan with insufficient assets.

          Notwithstanding the preceding provisions of this Section 3.01, in the
          event a retired or terminated Member's benefit calculated under the
          Retirement Income Plan is increased for any reason after the Member's
          supplemental benefit payments have commenced, the amount of any
          supplemental benefits payable to or on account of such Member under
          this Plan shall be reduced correspondingly on a prospective basis, and
          in the event such increase is made retroactively resulting in
          overpayments of the Member's supplemental benefits, future benefit
          payments under this Plan shall be reduced to reflect such prior
          overpayments in any manner determined by the Committee, in its
          discretion, and applied on a consistent basis to all similarly
          situated Members, until an amount equal to the total overpayments in
          the Member's supplemental benefit payments are recovered.

     3.02 If a Member described in Section 2.02 (d) is involuntarily terminated
          after completing one year of service but prior to becoming vested in
          the Retirement Income Plan and who receives severance pay benefits
          under the Severance Pay Plan for Salaried Employees of Armstrong World
          Industries, Inc. or any individual severance agreement, or who is
          eligible for severance pay benefits under the Employment Protection
          Plan for Salaried Employees of Armstrong World Industries, Inc., a
          supplemental benefit will be paid under this Plan.  The benefit will
          be calculated using the guaranteed pension schedule for Salaried
          Employees of Armstrong World Industries, Inc., from the Retirement
          Income Plan multiplied by the total years of service credited for
          employment prior to his Company employment, as determined in Section
          2.02(d) and his years of Company employment.  This benefit is payable
          at age 62 or the Member's termination date, whichever is later, as a
          single life annuity.

     3.03 If a Member is restored to employment with the Company after having
          retired, any monthly payments under the Plan shall be discontinued
          and, upon subsequent retirement or termination of employment with the
          Company, the Member's benefits under the Plan shall be recomputed in
          accordance with Section 3.01 and shall again become payable to such
          Member in accordance with the provisions of the Plan.

Article 4.  Administration

     4.01 The administration of the Plan and the responsibility for carrying out
          its provisions are vested in a Retirement Committee which shall be
          composed of the members of the Retirement Committee provided for under
          Article X of the Retirement Income Plan.  The provisions of Article X
          of the Retirement Income Plan concerning powers of the Committee shall
          apply under this Plan.  The Retirement Committee shall have the full
          and exclusive discretion and authority to interpret the Plan and to
          determine all benefits and to resolve all questions arising from the
          administration, interpretation, and application of Plan provisions,
          either by general rules or by particular decisions, including
          determinations as to whether a claimant is eligible for benefits, the
          amount, form and timing of benefits, and any other matter (including
          any question of fact) raised by a claimant or identified by the
          Retirement Committee.  All decisions of the Committee shall be
          conclusive and binding upon all affected persons.  The expenses of the
          Committee shall be paid directly by the Company.

Article 5.  General Provisions

     5.01 The establishment of the Plan shall not be construed as conferring any
          legal rights upon any person for a continuation of employment, nor
          shall it interfere with the rights of the Company to discharge any
          employee and to treat him without regard to the effect which such
          treatment might have upon him as a Member of the Plan.  No legal or
          beneficial interest in any of the Company's assets is intended to be
          conferred by the terms of the Plan.

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     5.02 In the event that the Committee shall find that a Member or other
          person entitled to benefits hereunder is unable to care for his
          affairs because of illness or accident, the Committee may direct that
          any benefit payment due him, unless claim shall have been made
          therefor by a duly appointed legal representative, be paid to his
          spouse, a child, a parent or other blood relative, or to a person with
          whom he resides, and any such payment so made shall be a complete
          discharge of the liabilities of the Company and the Plan therefor.

     5.03 The Company shall have the right to deduct from each payment to be
          made under the Plan any required withholding taxes.

     5.04 Subject to any applicable law, no benefit under the Plan shall be
          subject in any manner to anticipation, alienation, sale, transfer,
          assignment, pledge, encumbrance or charge, any attempt so to do shall
          be void, nor shall any such benefit be in any manner liable for or
          subject to garnishment, attachment, execution or levy, or liable for
          or subject to the debts, contracts, liabilities, engagements or torts
          of the Member.  In the event that the Committee shall find that any
          Member or other person entitled to benefits hereunder has become
          bankrupt or has made any such attempt with respect to any such
          benefit, such benefit shall cease and terminate, and in that event the
          Board shall hold or apply the same to or for the benefit of such
          Member or other person entitled to benefits.

     5.05 (a)  In the event that a Member shall at any time be convicted of a
               crime involving dishonesty or fraud on the part of such Member in
               his relationship with the Company, all benefits which would
               otherwise be payable to him under the Plan shall be forfeited.
               Notwithstanding the foregoing, if the Company's Board of
               Directors or a duly constituted Committee thereof, in its
               discretion, shall determine that the Member had no reasonable
               cause to believe his conduct was unlawful, then the Board of
               Directors may determine that such benefits shall not be
               forfeited.

          (b)  In the event that a Member becomes associated in any capacity
               with a business which competes with the Company, all future
               benefit payments under the Plan shall cease and be forfeited.
               Notwithstanding the foregoing, benefits shall not cease or be
               forfeited merely because the Member (1) owns publicly traded
               shares of stock of a corporation which competes with the Company,
               or (2)(a) acts as a consultant for, (b) has an investment in, or
               (c) is a Board member of a business where (i) after the Member
               notifies the Company in writing in advance of his potential
               involvement under (2)(a), (b) or (c), the Company's Board of
               Directors or a duly constituted Committee thereof determines that
               the Member will not be in violation of the Company's Conflicts of
               Interest policy, or (3) becomes associated with a business which
               competes with the Company within two years following a "change in
               control" and is eligible for benefits under the Employment
               Protection Plan for Salaried Employees.

          (c)  A "change in control" shall occur if and when (i) any person
               acquires "beneficial ownership" of more than 28% of the then
               outstanding "voting stock" of the Company and within five years
               thereafter, "disinterested directors" no longer constitute at
               least a majority of the entire Board of Directors or (ii) there
               shall occur a "business combination" with an "interested
               shareholder."  For the purpose of this Section, the terms
               "person," "beneficial ownership," "voting stock," "disinterested
               director," "business combination," and "interested shareholder"
               shall have the meaning given to them in Article 7 of the
               Company's Articles of Incorporation as in effect on May 1, 1985.

     5.06 The Plan shall be constructed, regulated and administered under the
          laws of the Commonwealth of Pennsylvania.

     5.07 The masculine pronoun shall mean the feminine wherever appropriate.

     5.08 The Board of Directors may, through written resolutions adopted by the
          Board of Directors, amend or discontinue the Retirement Benefit Equity
          Plan at any time; provided, however, that if the Plan is 

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          amended to discontinue or reduce the amount of supplemental benefit
          payments (except as may be required pursuant to any plan arising from
          insolvency or bankruptcy proceedings) (1) Members who have retired
          under the Plan shall continue to be paid in the amount and manner (as
          provided under Article 3 hereof) as they were being paid at the time
          of amendment or discontinuance of the Plan, and (2) future retirees
          under the Plan for whom supplemental benefits have been pre-funded in
          a trust prior to any such discontinuance or reduction in benefits,
          shall notwithstanding the amendment be entitled upon retirement to
          receive such pre-funded supplemental benefits, subject, however, to
          any amendment or discontinuation of such pre-funded benefits made
          under a written employment agreement entered into between the
          Executive Committee and the future retiree.

          In addition, the Board of Directors may by written resolution delegate
          to the Executive Committee of the Board of Directors this authority to
          amend the Plan.  The Executive Committee shall amend the Plan by means
          of written resolution in accordance with the authorization of the
          Board of Directors, provided, however, that any such amendment by the
          Executive Committee also may be made through the terms of a written
          employment agreement entered into between a Member and the Executive
          Committee.

     5.09 (a)  Any person claiming a benefit, requesting an interpretation or
               ruling under the Plan, or requesting information under the Plan
               shall present the request in writing to the Committee which shall
               respond in writing as soon as practicable.

          (b)  If the claim or request is denied, the written notice of denial
               shall state:


               (i)   The reasons for denial, with specific reference to the Plan
                     provisions on which the denial is based.

               (ii)  A description of any additional material or information
                     required and an explanation of why it is necessary.

               (iii) An explanation of the Plan's claim review procedure.

          (c)  Any person whose claim or request is denied or who has not
               received a response within thirty (30) days may request review by
               notice given in writing to the Committee.  The claim or request
               shall be reviewed by the Committee who may, but shall not be
               required to, grant the claimant a hearing.  On review, the
               claimant may have representation, examine pertinent documents,
               and submit issues and comments in writing.

          (d)  The decision on review shall normally be made within sixty (60)
               days.  If an extension of time is required for a hearing or other
               special circumstances, the claimant shall be notified and the
               time limit shall be one hundred twenty (120) days.  The decision
               shall be in writing and shall state the reasons and the relevant
               Plan provisions.  All decisions on review shall be final and bind
               all parties concerned.

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