What is an occupancy classification in the IBC

A designation of how a building or portion is used or occupied (e.g. A = assembly, B = business, E = educational, etc.).

Name three common occupancy groups.

Examples: Assembly (A), Residential (R), Business (B), Educational (E), Industrial (I), Storage (S), Mercantile (M), etc.

What is meant by mixed occupancy

A building or portion having two or more different occupancy groups, either separated or non-separated.

What is type of construction (in code context)

Classification of a building’s structural elements, exterior walls, and fire-resistive ratings (e.g. Type I, II, III, IV, V).

List the five basic types of construction under the IBC.

Type I, Type II, Type III, Type IV (heavy timber), and Type V.

What is the key difference between Type I and Type V construction

Type I is the most fire-resistive (steel/concrete with high fire ratings); Type V is the least fire-resistive (often wood-frame).

What is a fire-resistance rating

The time (in hours or minutes) that a building element can withstand fire exposure per test standards before failure.

How does occupant load factor into building design

It’s the number of people expected in a space, which impacts egress, exit width, exit capacity, and safety calculations.

What is the concept of allowable floor area under a particular occupancy and construction type

The maximum permitted floor area for a building or portion based on occupancy, construction type, fire protection features, and frontage.

What is fire separation distance

The distance between a building (or portion) and lot lines, or between buildings, affecting wall ratings and opening limitations.

What are fire partitions and fire barriers

Fire partitions: walls that separate certain spaces (e.g. in hotels). Fire barriers: more robust walls creating compartments to limit spread of fire.

A continuous area bounded by fire barriers, exterior walls, or other demarcations, within which fire can spread without crossing boundaries.

What is incidental use in a building

A use (or room) that presents a greater hazard than the main occupancy and thus has special fire protection requirements.

How are hazardous materials handled in relation to occupancy classification

Hazardous materials (e.g. flammable, combustible, corrosive) may require special classification or exclusions and additional safeguards.

What is the importance for a permit technician to understand Chapter 3 topics

To correctly identify occupancy, check that construction type is appropriate, compute allowable areas, ensure required fire ratings, and flag mixed or incidental uses.

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PT Ch. 3 Review

Question	Answer
What is an occupancy classification in the IBC	A designation of how a building or portion is used or occupied (e.g. A = assembly, B = business, E = educational, etc.).
Name three common occupancy groups.	Examples: Assembly (A), Residential (R), Business (B), Educational (E), Industrial (I), Storage (S), Mercantile (M), etc.
What is meant by mixed occupancy	A building or portion having two or more different occupancy groups, either separated or non-separated.
What is type of construction (in code context)	Classification of a building’s structural elements, exterior walls, and fire-resistive ratings (e.g. Type I, II, III, IV, V).
List the five basic types of construction under the IBC.	Type I, Type II, Type III, Type IV (heavy timber), and Type V.
What is the key difference between Type I and Type V construction	Type I is the most fire-resistive (steel/concrete with high fire ratings); Type V is the least fire-resistive (often wood-frame).
What is a fire-resistance rating	The time (in hours or minutes) that a building element can withstand fire exposure per test standards before failure.
How does occupant load factor into building design	It’s the number of people expected in a space, which impacts egress, exit width, exit capacity, and safety calculations.
What is the concept of allowable floor area under a particular occupancy and construction type	The maximum permitted floor area for a building or portion based on occupancy, construction type, fire protection features, and frontage.
What is fire separation distance	The distance between a building (or portion) and lot lines, or between buildings, affecting wall ratings and opening limitations.
What are fire partitions and fire barriers	Fire partitions: walls that separate certain spaces (e.g. in hotels). Fire barriers: more robust walls creating compartments to limit spread of fire.
What is a fire area	A continuous area bounded by fire barriers, exterior walls, or other demarcations, within which fire can spread without crossing boundaries.
What is incidental use in a building	A use (or room) that presents a greater hazard than the main occupancy and thus has special fire protection requirements.
How are hazardous materials handled in relation to occupancy classification	Hazardous materials (e.g. flammable, combustible, corrosive) may require special classification or exclusions and additional safeguards.
What is the importance for a permit technician to understand Chapter 3 topics	To correctly identify occupancy, check that construction type is appropriate, compute allowable areas, ensure required fire ratings, and flag mixed or incidental uses.

Created by: user-1915758

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