Transcription of Chapter 3: Occupancy Classification and Use
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2018 IBC CODE and COMMENTARY3-1 Chapter 3: Occupancy Classification and UseGeneral CommentsChapter 3 provides for the Classification of buildings,structures and parts thereof into Occupancy groupsbased on the purpose or purposes for which they 302 identifies the Occupancy groups intowhich all buildings, structures and parts thereof must 303 through 312 identify the occupancycharacteristics of each group Classification . In somesections, specific group classifications having require-ments in common are collectively organized such thatone term applies to all. For example, Groups A-1, A-2,A-3, A-4 and A-5 are individual groups. The generalterm Group A, however, includes each of these individ-ual groups.
tion, allowable heights, and areas and types of construc-tion becomes apparent. Respective to each occupancy classification, the greater the fire-resistance rating of structural elements, as represented by the type of con-struction, the greater the floor area and height allow-ances. The greater the potential fire hazards indicated
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