Acuity Brands to Discuss 2005 Third Quarter Results.

ATLANTA -- Acuity Brands, Inc. (NYSE: AYI) will host a conference call on Wednesday, July 6, 2005, at 4:00 p.m. ET to discuss the Company's performance for the third fiscal quarter ended May 31, 2005, following the announcement of those results earlier that day. Vernon J. Nagel, Chairman and Chief Executive Officer of Acuity Brands, will lead the call. A live Webcast of the discussion will be accessible at the Company's Web site: www.acuitybrands.com. A replay of the call will also be posted and archived to that site within two hours of the completion of the conference call.

Acuity Brands, Inc., with fiscal year 2004 net sales of over $2.1 billion, is comprised of Acuity Brands Lighting and Acuity Specialty Products. Acuity Brands Lighting is one of the world's leading providers of lighting fixtures and includes brands such as Lithonia Lighting(R), Holophane(R), Peerless(R), Hydrel(R), American Electric Lighting(R), and Gotham(R). Acuity Specialty Products is a leading provider of specialty chemicals and includes brands such as Zep(R), Zep Commercial(TM), Enforcer(R), and Selig(TM). Headquartered in Atlanta, Georgia, Acuity Brands employs approximately 10,000 people and has operations throughout North America and in Europe and Asia.