Ch. 8 Means of egress Flashcards
Continuous unobstructed path of vertical Robbie Santo egress travel from any point in a building or structure to a public way
Means of egress
Any street, alley, or similar parcel of land essentially unobstructed from the ground to the sky that is permanently appropriated to the public for public use in his clear width of not less than 10 feet
Public way
The portion of the egress system that provides a protective had an egress between the exit access in the exit discharge
Exit
The portion of the ecosystem between the termination of an exit in a public way. These are typically included portions outside the exterior walls, such as exterior exit balconies, exterior exit stairways, and exit courts
Exit discharge
The number of people that are building code assumes will occupy given building or portion of a building
Occupant load
The amount of floor area presume to be occupied by one person
Occupant load factor
The space actually used
Net floor Area
What is the formula to find the occupant load
Square footage divided by occupant load factor
The portion of the exit access travel distance measured from the most remote point of each room, area, or space to the point where the occupants of separate or distinct access to two or exits or exit access doorways and can choose which direction to go
Common path of egress travel
The distance that an occupant would have to travel to get from the most remote point of each room, area, or space along the natural in an obstructed path of horizontal and vertical travel, to the entrance to the nearest exit
Exit Access travel distance
What are the conditions in which the IVC allows egress to pass through stockroom that serves a group m occupancy
The stock in the stock room must be of the same hazard classification is that found in the main retail area, not more than 50% of the exit access can be through the stockroom, the stockroom cannot be subject to locking from the egress side, and there must be a demarcated aisle with a minimum width of 44 inches defined by full or partial highlight fix walls or similar construction that will maintain the required with and leave directly from the Retail area to the exit without obstruction
How do you find the required minimum width of exits
Multiplying the occupant load served by a factor of 0.3 for stairways and 0.2 for egress components other than stairways
A portion of an exit access leading to an exit
Corridor
For educational and institutional what is the required Corredor width
72 inches when serving an occupant load of 100 or more
What is the maximum width of a swinging egress door
48 inches
What is the minimum height of an egress door
80 inches
A material that swells and chores when exposed to heat to form a barrier to smoke and fire
Intumescent material
A change in elevation consisting of one or more risers
Stair
One or more flights of stairs
Stairway
A vertical component that connects to treads
Riser
What is the minimum width of a stairway serving an occupant load of 50 or more
44 inches
What is the minimum stair width with an occupant load of 49 or less
36 inches
How far can handrails project into the stairway
4 1/2 inches on each side
What is the minimum height of a riser on a stair
4 inches
what is the maximum height on a riser
7 inches
What is the minimum tread width
11 inches
Residential occupancy is serving a load of less than 10 what is the maximum riser height
Seven and three-quarter inch
In residential occupancies in private stairway serving an occupant load of less than 10 what is the minimum tread width
10 inches
An exit component that serves to meet one or more means of egress requirements
Interior exit stairway
An interior stairway that is not required interior exit stairway, such as a monumental stair serving two floors of a retail store
Exit access stairway
What type of walls mustine clothes into your exit stairways
2hr rated
What type of wall is missing close into your exit stairways less than four stories high
One hour rated
How high is the top of a handrail be above the nosing of the treads
34 to 38 inches
These are windows that must meet certain size and location requirements
Emergency escape and rescue openings
An area where a persons unable to use stay awake and remain temporarily to await instructions or assistance during emergency evacuation
Area of refuge
An enclosed exit access component that defines and provides a path of egress travel to an exit. The Corredor may or may not be protected depending on the particular requirements of the code
Corredor
Adore her access point along the path of egress travel from an occupied room, area 👑, or space where the path of egress enters an intervening room, corridor, unenclosed exit access stair, or unenclosed exit access ramp
Exit access door way
A quart or a yard that provides access to the public way for one or more required exit. This was formally called an exit court
Egress court
It’s fully enclosed portion of an exit that is only used as a means of egress and provides for a protected path of egress either in a vertical or horizontal direction. And most instances, however, exit enclosures mean protected stairways. Depending on the construction of the building type, and exit enclosure must have either a one hour or two hour waiting, and all openings must be predicted. And exit enclosure must lead to an exit discharger public way
Exit enclosure
A horizontal, fully enclosed portion of an exit that is only used as a means of egress. An exit passageway leads from an exit door way to an exit destroyed your public way. A common example of this is an exit door at the ground level of an interior stairway that leads to the building to the outside of the building
Exit passageway
An exit through a minimum to our rated wall that divides a building into two or more separate exit access areas to afford safety from fire and smoke
Horizontal exit
A change in elevation, consisting of one or more risers
Stair
One or more flights of stairs, either exterior or interior, with the necessary landings and platforms connecting them, to form a continuous and uninterrupted passage from one level to another
Stairway
The measurement of the distance between the most remote occupied of a point of an area or a room to the entrance of the nearest exit that it serves. It is part of the exit access and is measured in a straight line along the path of exit travel
Travel distance
