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Fire Rated door openings

Question asked by jwalker7 on Jan 10, 2019
Latest reply on Jan 11, 2019 by milt.werner

Good morning,

Some seals on rated openings, are they required? I know say a rated door with a S in a square but not smoke seal . The inspector fail that opening or a rating door frame label that has UL63, UL 10B  and no smoke seal  opening was FAILED. This hospital is 30+ years old and ive been here for 5 and this has never been brought to my attention. Are theses true facts? Can anyone point this in NFPA 101?