Dayton Superior to Broadcast Second Quarter 2006 Earnings Release.

DAYTON, Ohio -- Dayton Superior will broadcast a conference call to discuss its second quarter 2006 earnings on Tuesday, August 8, 2006, at 11:00 a.m. ET. The call will be conducted by Rick Zimmerman, President and CEO, and Ed Puisis, Executive Vice President and CFO. E[acute accent]Interested parties may participate in the call by telephone. Please call [phone] at least 10 minutes before the start of the call to register. E[acute accent]A replay of the call will be available from 5:00 p.m. ET, Tuesday, August 8, 2006, until 11:59 p.m. ET, Tuesday, August 22, 2006. Please call 1-888-266-2081 and enter reservation #946799.

E[acute accent]IMPORTANT NOTICE: To remain on or be added to our distribution list, please send your email address and contact information to the address listed below:

E[acute accent][e-mail]

E[acute accent]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. E[acute accent]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).