Openings in exterior walls in adjacent stories require a vertical separation when openings are within what horizontal distance from each other?

The requirement for vertical separation of openings in exterior walls of adjacent stories is critically important for fire safety and structural integrity. When openings are within 5 feet of each other horizontally, the risk of fire spreading between floors increases. This criterion is established to ensure that potential fires do not easily jump from one floor to the adjacent floor through these openings. The 5-foot rule helps maintain a buffer zone that minimizes the likelihood of flame or smoke migration, thereby contributing to a safer building environment.

This requirement is particularly relevant in multi-story commercial buildings where fire safety standards are crucial. By adhering to this guideline, building inspectors can enforce regulations that protect both occupants and the structural framework of the building. The other distances mentioned do not align with established fire safety criteria in this context, where 5 feet has been identified as a critical threshold.