Intent 1:
To supersede the requirements of Subsections 3.1.8., 3.1.9. and 3.2.8., and require scissors stairs and other contiguous
exit stairways to be separated from each other by smoke-tight fire
separations.
This is to limit the probability
that fire will spread from one exit to another exit, which could lead
to:
- delays in the evacuation or movement of persons to a
safe place, which could lead to harm to persons, and
- delays or ineffectiveness in fire emergency response
operations, which could lead to:
- delays in the evacuation or movement of persons to a
safe place, which could lead to harm to persons, including emergency
responders, and
- the spread of fire to other parts of the building, which
could lead to harm to persons.