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Smoke Detector Spacing on Level Ceilings with Beams and Joists
Recommendations
Based on these findings, the report authors proposed language for addition to the body and annex of NFPA 72.
The language clarifies how smoke detectors shall be placed on ceilings with beams and joists. These changes
are expected to be incorporated into the 2007 edition of NFPA 72, which will be released in late 2006, to quell
some of the debate surrounding the current requirements for smoke detectors on beam ceilings.
Conclusion
As a part of the National Fire Protection Association's mission to "reduce the worldwide burden of fire" by
continually updating their consensus codes based on the latest research available, NFPA commissioned this study
of smoke detector spacing. The results of this study and accompanying code changes are expected to reduce the
overall cost of fire protection systems in beam ceiling applications while not comprising occupant safety.
Acknowledgement
This document was written with guidance from Schirmer Engineering Corporation.
For more information regarding Smoke Detector Spacing, please contact:
System Sensor
3825 Ohio Avenue
St. Charles, Illinois 60174
1-800-sensor2
www.systemsensor.com
A05-0408-000 • 9/06 • #1703
System Sensor. Advanced Ideas. Advanced Solutions.
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©2006 System Sensor
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