Ch 28 Exiting Flashcards
continuous and unobstructed path of vertical and/or horizontal egress travel form any point in a building to a public way
means of egress
street, alley or land essentially unobsructed to the sky with a clear width of 10’ min permantly appropriated to public
public way
leads to entrance of an exit, may not be protected
exit access
portion of a building where travel distance is measured
exit access
provides a protected path of egress travel, enclosed with 1 or 2 hr fire-rated assemblies
exit
travel distance (is/is not) an issue once exit is reached
not
portion between termination of an exit and a public way
exit discharge
all spaces included in total SF
gross floor area
only space acutally used included in SF
net floor area
___” per person in fixed seating without arms
18”
___” per person in booth seating
24”
portion of exit access that occupant required to travel to reach 2 seperate and distinct paths of egress travel to two exits
common path of travel
max common path of travel in unsprinklered building
75’
max common path of travel in sprinklered building
100’
arrangement of exits determined by 1/2 diagonal rule
1/2 diagonal
distance that occupant must travel from most remote point in an occupied space to the entrance of an exit
maximum travel distance
max travel distance in an unsprinklered building
200’
max travel distance in a sprinklered building
250’-300’
OL x factor of width= width of exits in (feet, inches)
inches
max length of dead end corridor in unsprinklered building
20’
max length of dead end corridor in sprinklered building
50’
doors must swing indirection of travel when serving ___ occupants
50 or more
normal exit door must be within ___’ of a revolving door
10’
minimum width for stairways
44”
stairways greater than ___’ wide must have an intermediate handrail
5’
handrail height above nosing
34’-38
diameter for handrail
1 1/4-2
handrail can protrude____max into stair
4.5”
minimum riser height in commercial
4”
max riser, min tread depth in residential
7 3/4”, 10”
how far must handrail continue at top of stair
12”
how far must handrail continue at bottom of stair
depth of tread
minimum height and width of operable window in a basement and bedroom
24” height, 20” width
max sill height for an operable window
44”
