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Hazardous Area Protection

Question asked by j.berry on Aug 3, 2017
Latest reply on Aug 7, 2017 by milt.werner

We are seeking to comply with NFPA 101 18.3.2.1 Hazardous Area Protection for a new health care occupancy.  There is a particular ceiling assembly we would like to use in order to stop the fire rated walls at the ceiling level.  This assembly involves intumescent paint on 5/8" Type-X gypsum board and wood trusses at 24" O.C.  Guardian Fire Testing Laboratories provided an Engineering Evaluation Report (EER) which states that this particular assembly qualifies as a 1-hour ceiling assembly.  However, the EER references a fire test report for a similar (not identical) floor/ceiling assembly tested in accordance with ASTM E-119 and NFPA 251.  In other words, the testing agency used a fire test for one assembly to interpolate a fire rating for the assembly in question.  Is there any way to determine if NFPA 101 recognizes an EER from an accredited fire testing laboratory?    

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