Remote Area Reduction with Vertical Openings
“The issue is if vertical openings are not protected per 8.15.4. Can you apply section 11.2.3.2.3.1?” We have reviewed NFPA 13, 2007 edition as the applicable standard. Our informal interpretation is the vertical opening will affect the design requirements. The opening will allow the heat plume to escape to the upper ceiling and the height of the vertical opening will have to be used for the quick-response reduction in Section 11.2.3.2.3.1(3). It should be noted that multiple design bases, each with their own remote area, can be utilized. Thus, the area directly beneath the vertical opening will have a larger remote area and all of the surrounding areas with lower ceilings can have a smaller remote area. Technical Update is prepared by the Technical Services Dept. of the AFSA: Roland Huggins, a PE registered in fire protection engineering, Vice President of Engineering and Technical Services; Tom Wellen, a PE registered in fire protection engineering; Jason Williams, CET, Manager of ITM Technical Training; and Tom Noble, E.T., Technical Programs Specialist. This is provided with the understanding that the AFSA assumes no liability for this opinion or actions taken on it and they are not to be considered the official position of the NFPA or its technical committees. Copyright 2017, American Fire Sprinkler Association. All Rights Reserved -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.firesprinkler.org/private.cgi/sprinklernotes-firesprinkler.org/attachments/20170612/657876a5/attachment.htm>
