I am working on a large jail project where the architect has asked me to provide value engineering ideas. One of the things that I am considering bringing to his attention is the possibility of turning their upper cell walkway into an open grate flooring of 4' or less. I was pretty sure that this would eliminate the need for sprinklers under these walkways but I wanted to substantiate it before I presented it. NFPA 13 02 edition 8.5.5.3.1 states " Sprinklers shall be installed under fixed obstructions over 4ft wide such as ducts, decks, open grate flooring, cutting tables, and overhead doors". Am I correct in assuming that if these "floors" are 4' or less that sprinks will not be required? I thought that I remembered that there were other requirements such as percentage or size of openings similiar to the meshing in nursing home curtains but I can't find it anywhere. Any help is appreciated. Thanks, Rod DiBona Rapid Fire Protection _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum
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