350 QUESTIONS AND ANSWERS
1. Q: What is the primary purpose of building codes? ANSWER To
establish minimum requirements to safeguard the public health, safety, and
general welfare through structural strength, means of egress facilities, stability,
sanitation, adequate light and ventilation, energy conservation, and safety to life
and property from fire and other hazards.
2. Q: Which organization publishes the International Building Code (IBC)?
ANSWER The International Code Council (ICC).
3. Q: How often is the IBC typically updated? ANSWER Every three years.
4. Q: What is the difference between a building code and a building
standard? ANSWER A building code is a legally enforceable document
adopted by a jurisdiction, while a building standard is a technical document that
may be referenced by codes but is not legally enforceable on its own.
5. Q: What does "occupancy classification" determine? ANSWER It
determines the specific code requirements for a building based on its intended
use, including allowable building area, height, construction type, fire protection
systems, and means of egress.
6. Q: List the main occupancy groups in the IBC. ANSWER Assembly (A),
Business (B), Educational (E), Factory and Industrial (F), High Hazard (H),
Institutional (I), Mercantile (M), Residential (R), Storage (S), and Utility and
Miscellaneous (U).
7. Q: What is a "mixed occupancy" building? ANSWER A building that
contains two or more different occupancy classifications in the same structure.
8. Q: What are the two methods for designing mixed occupancy buildings?
ANSWER Separated uses (each occupancy is separated by fire-resistance-rated
assemblies) and non-separated uses (the entire building complies with the most
restrictive requirements).
,9. Q: What is "construction type" in building codes? ANSWER A
classification system that describes the fire-resistance rating requirements for
the structural elements of a building.
10. Q: List the five construction types in the IBC. ANSWER Type I (fire-
resistive), Type II (non-combustible), Type III (combustible/ordinary masonry),
Type IV (heavy timber), and Type V (wood frame).
11. Q: What is the most fire-resistive construction type? ANSWER Type I
construction.
12. Q: What construction type allows for unlimited building area and
height? ANSWER Type I construction (when fully sprinklered).
13. Q: What is "allowable building area"? ANSWER The maximum floor
area permitted by code for a building of a specific occupancy and construction
type.
14. Q: How do automatic sprinkler systems affect allowable building area?
ANSWER They typically allow for increases in allowable area, often doubling
or tripling the base allowable area depending on the occupancy.
15. Q: What is "building height" as defined by codes? ANSWER The
vertical distance from grade plane to the average height of the highest roof
surface.
16. Q: What is "grade plane"? ANSWER A reference plane representing the
average of finished ground level adjoining the building at exterior walls.
17. Q: What is a "story"? ANSWER That portion of a building included
between the upper surface of a floor and the upper surface of the floor or roof
next above.
18. Q: What is a "mezzanine"? ANSWER An intermediate level between the
floor and ceiling of any story with an aggregate floor area of not more than one-
third of the floor area of the room in which it is located.
19. Q: What is "floor area ratio" (FAR)? ANSWER The numerical value
obtained by dividing the total covered floor area of a building by the area of the
lot on which it is situated.
20. Q: What is "fire separation distance"? ANSWER The distance
measured from the building face to the closest interior lot line, to the centerline
of a street or public way, or to an imaginary line between two buildings on the
same lot.
, 21. Q: How does fire separation distance affect exterior wall requirements?
ANSWER Buildings with greater fire separation distances have fewer
restrictions on openings and combustible materials in exterior walls.
22. Q: What is a "fire wall"? ANSWER A fire-resistance-rated wall having
protected openings that restricts the spread of fire and extends continuously
from the foundation to or through the roof.
23. Q: What is the minimum fire-resistance rating for fire walls?
ANSWER Typically 3 hours, but may vary based on occupancy and
construction type.
24. Q: What is a "fire barrier"? ANSWER A fire-resistance-rated wall
assembly designed to restrict the spread of fire in which openings are protected
by fire doors, fire shutters, or fire windows.
25. Q: What is a "fire partition"? ANSWER A vertical assembly of
materials designed to restrict the spread of fire, typically with a 1-hour fire-
resistance rating.
26. Q: What is "passive fire protection"? ANSWER Fire protection features
that are built into the structure and do not require activation, such as fire-
resistance-rated assemblies and fire-stopping materials.
27. Q: What is "active fire protection"? ANSWER Fire protection systems
that require activation to operate, such as sprinkler systems, fire alarms, and
smoke control systems.
28. Q: What is a "fire-resistance rating"? ANSWER The time, in hours or
fractions thereof, that materials or assemblies have withstood a fire exposure as
established in accordance with test procedures.
29. Q: What test standard is commonly used to determine fire-resistance
ratings? ANSWER ASTM E119 or UL 263 "Fire Tests of Building
Construction and Materials."
30. Q: What is "flame spread rating"? ANSWER A comparative measure of
the ability of a material to resist flame spread over its surface.
31. Q: What test determines flame spread and smoke developed ratings?
ANSWER ASTM E84 "Surface Burning Characteristics of Building Materials"
(Steiner Tunnel Test).
32. Q: What are the flame spread classifications for interior finishes?
ANSWER Class A (0-25), Class B (26-75), and Class C (76-200).
1. Q: What is the primary purpose of building codes? ANSWER To
establish minimum requirements to safeguard the public health, safety, and
general welfare through structural strength, means of egress facilities, stability,
sanitation, adequate light and ventilation, energy conservation, and safety to life
and property from fire and other hazards.
2. Q: Which organization publishes the International Building Code (IBC)?
ANSWER The International Code Council (ICC).
3. Q: How often is the IBC typically updated? ANSWER Every three years.
4. Q: What is the difference between a building code and a building
standard? ANSWER A building code is a legally enforceable document
adopted by a jurisdiction, while a building standard is a technical document that
may be referenced by codes but is not legally enforceable on its own.
5. Q: What does "occupancy classification" determine? ANSWER It
determines the specific code requirements for a building based on its intended
use, including allowable building area, height, construction type, fire protection
systems, and means of egress.
6. Q: List the main occupancy groups in the IBC. ANSWER Assembly (A),
Business (B), Educational (E), Factory and Industrial (F), High Hazard (H),
Institutional (I), Mercantile (M), Residential (R), Storage (S), and Utility and
Miscellaneous (U).
7. Q: What is a "mixed occupancy" building? ANSWER A building that
contains two or more different occupancy classifications in the same structure.
8. Q: What are the two methods for designing mixed occupancy buildings?
ANSWER Separated uses (each occupancy is separated by fire-resistance-rated
assemblies) and non-separated uses (the entire building complies with the most
restrictive requirements).
,9. Q: What is "construction type" in building codes? ANSWER A
classification system that describes the fire-resistance rating requirements for
the structural elements of a building.
10. Q: List the five construction types in the IBC. ANSWER Type I (fire-
resistive), Type II (non-combustible), Type III (combustible/ordinary masonry),
Type IV (heavy timber), and Type V (wood frame).
11. Q: What is the most fire-resistive construction type? ANSWER Type I
construction.
12. Q: What construction type allows for unlimited building area and
height? ANSWER Type I construction (when fully sprinklered).
13. Q: What is "allowable building area"? ANSWER The maximum floor
area permitted by code for a building of a specific occupancy and construction
type.
14. Q: How do automatic sprinkler systems affect allowable building area?
ANSWER They typically allow for increases in allowable area, often doubling
or tripling the base allowable area depending on the occupancy.
15. Q: What is "building height" as defined by codes? ANSWER The
vertical distance from grade plane to the average height of the highest roof
surface.
16. Q: What is "grade plane"? ANSWER A reference plane representing the
average of finished ground level adjoining the building at exterior walls.
17. Q: What is a "story"? ANSWER That portion of a building included
between the upper surface of a floor and the upper surface of the floor or roof
next above.
18. Q: What is a "mezzanine"? ANSWER An intermediate level between the
floor and ceiling of any story with an aggregate floor area of not more than one-
third of the floor area of the room in which it is located.
19. Q: What is "floor area ratio" (FAR)? ANSWER The numerical value
obtained by dividing the total covered floor area of a building by the area of the
lot on which it is situated.
20. Q: What is "fire separation distance"? ANSWER The distance
measured from the building face to the closest interior lot line, to the centerline
of a street or public way, or to an imaginary line between two buildings on the
same lot.
, 21. Q: How does fire separation distance affect exterior wall requirements?
ANSWER Buildings with greater fire separation distances have fewer
restrictions on openings and combustible materials in exterior walls.
22. Q: What is a "fire wall"? ANSWER A fire-resistance-rated wall having
protected openings that restricts the spread of fire and extends continuously
from the foundation to or through the roof.
23. Q: What is the minimum fire-resistance rating for fire walls?
ANSWER Typically 3 hours, but may vary based on occupancy and
construction type.
24. Q: What is a "fire barrier"? ANSWER A fire-resistance-rated wall
assembly designed to restrict the spread of fire in which openings are protected
by fire doors, fire shutters, or fire windows.
25. Q: What is a "fire partition"? ANSWER A vertical assembly of
materials designed to restrict the spread of fire, typically with a 1-hour fire-
resistance rating.
26. Q: What is "passive fire protection"? ANSWER Fire protection features
that are built into the structure and do not require activation, such as fire-
resistance-rated assemblies and fire-stopping materials.
27. Q: What is "active fire protection"? ANSWER Fire protection systems
that require activation to operate, such as sprinkler systems, fire alarms, and
smoke control systems.
28. Q: What is a "fire-resistance rating"? ANSWER The time, in hours or
fractions thereof, that materials or assemblies have withstood a fire exposure as
established in accordance with test procedures.
29. Q: What test standard is commonly used to determine fire-resistance
ratings? ANSWER ASTM E119 or UL 263 "Fire Tests of Building
Construction and Materials."
30. Q: What is "flame spread rating"? ANSWER A comparative measure of
the ability of a material to resist flame spread over its surface.
31. Q: What test determines flame spread and smoke developed ratings?
ANSWER ASTM E84 "Surface Burning Characteristics of Building Materials"
(Steiner Tunnel Test).
32. Q: What are the flame spread classifications for interior finishes?
ANSWER Class A (0-25), Class B (26-75), and Class C (76-200).
