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Exit stairs in aircraft hangars

Question asked by minawadie on Aug 14, 2018
Latest reply on Aug 14, 2018 by milt.werner


iam working on an aircraft hangar design , iam asking about exit stairs required by NFPA 101 (40.6) or 409, Are they should be enclosed or it may be open stair specially they are only between ground and mezzanine floors