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Presentation: Improving Fire Alarm Intelligibility Through Technology
Since the release of the 2010 Edition of NFPA 72 and recent changes in Model Building Codes, fire alarm systems have an increased use of audio loudspeakers which require intelligibility. This presentation will feature how a designer can use new technology in speaker design and placement to increase intelligibility. This will include information on newer loudspeaker options and practical suggestions on loudspeaker design. Special focus will be on difficult spaces that present intelligibility challenges due to highly reverberant surfaces.
Guest Presenter: Larry Rietz, SET - Jensen Hughes
Larry Rietz is a NICET Level IV-certified Fire Alarm designer with over 23 years of life safety industry experience. After working for a New York-based international engineering firm, and for 14 years with a large Fire Alarm manufacturer and service provider, he is has spent the last 6 years with Jensen Hughes in Denver, Colorado. While providing office leadership as the Director of the office, he has designed, analyzed, and commissioned several large emergency communication systems for transportation, entertainment, and higher education campuses and is the Project Manager for the Denver International Airport Public Safety Notification Upgrade and On-Call Life Safety projects. Larry currently serves on the Automatic Fire Alarm Association (AFAA) Board of Directors as Secretary, on the Technical Committee (Principal) for NFPA 1616 Standard on Mass Evacuation, Sheltering and Reentry, on the Technical Committee (Alternate) for NFPA 72 Chapter 24 (SIG-ECS), and on the Technical Committee (Alternate) for NFPA 101 – Educational and Day Care Occupancies.
