Term
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Definition
| Continuous and unobstructed path of vertical and horizontal egress travel from any point in a building or structure to a public way. |
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Term
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Definition
| Portion of the means of egress that leads to the entrance of an exit. |
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Term
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Definition
Portion of the means of egress that provides a protected path of egress between the exit access and the exit discharge.
(Fully enclosed and protected by fire-resistance rated construction with protected openings) |
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Term
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Definition
| Portion of the means of egress between the termination of exit and public way. |
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Term
| According to the CBC, which part of the means of egress is an exterior exit stairway or ramp? |
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Definition
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Term
| What are 3 factors that determine the 1- or 2-hour rating for an exit? |
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Definition
1. building height
2. construction type
3. passageway length |
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Term
| What must be added to the number of fixed seats in a fixed seating assembly to determine the occupant load? |
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Definition
| The occupant load of areas where fixed seating is not installed (waiting and wheelchair spaces). |
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Term
| In the CBC, what type of space requires two exits if > 500 sq. ft. and containing hazardous materials. |
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Definition
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Term
| What condition will require two exits even if the occupant load is less than indicated in the CBC Table 1015.1 Spaces with One Means of Egress? |
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Definition
The common path of egress travel exceeds the limits given in the code:
a. 75 ft. for all but H-1, H-2, H-3
b. 100 ft. for B, F, S if sprinklered |
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Term
| How many exits are required if the O.L is between 501 - 1000? |
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Definition
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Term
| How many exits are required if the OL > 1000? |
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Definition
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Term
What is the typical egress width per occupant for a non-sprinklered building (except H and I-2)
a. for stairways
b. for other egress components? |
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Definition
a. 0.3 in. / occupant
b. 0.2 in. / occupant |
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Term
What is the typical egress width per occupant for in a sprinklered building (except H and I-2)
a. for stairways
b. for other egress components? |
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Definition
a. 0.2 in. / occupant
b. 0.15in. / occupant |
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Term
| If there are multiple means of egress and one means of egress becomes blocked, what is the minimum capacity that the other means of egress must handle? |
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Definition
| 50% of the required total capacity |
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Term
| What types of door opening mechanism are allowed for egress doors serving hazardous areas or OL >= 50? |
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Definition
| Pivoted or side-hinged - swing in direction of travel |
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Term
| How many inches can a fully open door project into the required width of the path of egress? |
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Definition
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Term
| If a building is fully sprinklered, what is the minimum separation distance of exits for a space that requires two exits? |
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Definition
1/3 the maximum diagonal dimension
(1/2 if not sprinklered) |
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Term
| What is the minimum clear width for an egress door (except I-2, I-3, R-1 or closets)? |
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Definition
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Term
| What is the maximum width of swinging egress doors? |
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Definition
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Term
| What is the minimum height of an egress door? |
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Definition
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Term
| What is the minimum clear width of an egress door for Group I-2? |
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Definition
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Term
| What is the minimum clear width of an egress door for Group I-3? |
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Definition
| 28 in. (unless accessible) |
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Term
| Is glass permitted in egress doors? |
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Definition
| Yes, but it must be wired glass or fire-resistance-rated glazing. |
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Term
| What is the minimum and maximum size of risers for public stairs? |
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Definition
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Term
| What is the minimum tread for public stairs? |
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Definition
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Term
| What is the maximum riser for residential occupancies or private stairways with OL < 10? |
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Definition
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Term
| What is the minimum tread for residential occupancies or private stairways with OL < 10? |
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Definition
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Term
| What is the minimum dimension of a stairway landing in the direction of travel? |
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Definition
| No less than the width of the stair, but need not be more than 48 in. |
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Term
| When is an intermediate handrail required for a stairway? |
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Definition
| For stairways wider than 5 ft. (Handrail access must be within 30 in.) |
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Term
| The top of the handrail must be between what height above the nosing of treads? |
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Definition
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Term
| How far past the top riser must the handrail extend? |
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Definition
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Term
| How far beyond the bottom riser must the handrail extend? |
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Definition
| At least the depth of one tread. |
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Term
| What is the cross-sectional dimension of the gripping portion of the handrail? |
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Definition
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Term
| What is the minimum space between the handrail and the wall? |
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Definition
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Term
| What is a common formula for determining an appropriate riser to tread ratio? |
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Definition
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