Major Factors to Consider in any Occupancy Classification See Occupancy Classification

Below are the six most important factors to consider in occupancy classifications. However other minor factors which not listed may also need to be considered.

  1. The amount of combustible materials in the structure (building). This includes the building content such as furniture, interior finishes, storage and other materials.
     
  2. High flammability, explosive or health hazard contents. The more dangerous the contents the more protection for the building and occupants that are needed.
     
  3. Occupant Load (Density). The occupant load of the building is determined by section 1004 (Table 1004.1.2) and section 1004.7. The more people occupy the building the more time it will take to evacuate in the case of an emergency.
     
  4. Familiarity of the building. All of the following factors play a role in establishing the occupancy classification and the degree of protection required:
    Do occupants of the building know where the exits are?
    Are occupants familiar with the evacuation alarms?
    Do occupant know the procedures established to evacuate the building in an emergency?
     
  5. Mobility of the occupants. When an emergency alarm goes off:
    Can the persons in the building evacuate?
    Will staff assistance be required? The extended time to evacuate will play a role in the level of protection required.
     
  6. The alertness of the occupants. The ability to notice and determine emergency situations quickly will change the occupancy protection required.
    Are the occupants sleeping?
    Are occupants engaged in work in special atmospheres, which will reduce their awareness of an emergency?   

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