Exhibit 99.1

       Dayton Superior Increases Credit Facility to $95 Million

    DAYTON, Ohio--(BUSINESS WIRE)--July 7, 2004--Dayton Superior
Corporation reported today that it has increased its existing $80
million senior secured revolving credit facility with General Electric
Capital Corporation (GE Capital) and General Motors Acceptance
Corporation (GMAC) to $95 million effective July 2, 2004. The $15
million increase in credit availability will provide the Company with
additional liquidity capacity to effectively manage its business.
Availability of borrowings continues to be subject to a borrowing base
calculation.
    Stephen R. Morrey, Dayton Superior's President and Chief Executive
Officer stated, "The additional liquidity capacity under the credit
facility provides us with the flexibility to pursue opportunities to
enhance our business performance as they come available. At this time
there are no immediate intentions to utilize any portion of the
additional credit availability."
    Dayton Superior is the largest North American manufacturer and
distributor of metal accessories and forms used in concrete
construction, and a leading manufacturer of metal accessories used in
masonry construction in terms of revenues. The company's products are
used in two segments of the construction industry: infrastructure
construction, such as highways, bridges, utilities, water and waste
treatment facilities and airport runways, and non-residential
building, such as schools, stadiums, prisons, retail sites, commercial
offices, hotels and manufacturing facilities. The company sells most
products under the registered trade names Dayton Superior(R),
Dayton/Richmond(R), Symons(R), Aztec(R), BarLock(R), Conspec(R),
Edoco(R), Dur-O-Wal(R) and American Highway Technology(R).

    CONTACT: Dayton Superior Corporation
             Edward J. Puisis, 937-428-7172
             Fax: 937-428-9115