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Does my attic ladder need to be 20 minute fire rated if my house, attic and garage have an automated fire sprinkler system?

Question asked by mike VIERHUS on Mar 11, 2017
Latest reply on Mar 14, 2017 by Ray Norton

I'm building a small ADU with the heating system in the attic over the attached garage. I want to put a pull down attic ladder for access and storage. The ADU has an approve automatic sprinkler system.