Use and Occupancy Classification Chapter 3

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Questions and Answers

An institutional occupancy is typically considered Group ____

I

A Group ______ occupancy is the general classification for miscellaneous and utility structures.

U

Accessory religious educational rooms need not be considered separate occupancies where the occupant load is less than ______ occupants.

100

An accessory assembly area may be classified as a Group B occupancy where the floor area is a maximum of ______ square feet.

<p>749</p> Signup and view all the answers

In a Group E middle school, an assembly area associated with the Group E shall be separated at what minimum level from the remainder of the school building?

<p>no separation is required (considered same occupancy)</p> Signup and view all the answers

Which of the following uses is typically considered a Group A-4 occupancy?

<p>indoor hockey arena</p> Signup and view all the answers

Which of the following uses is not considered a Group B occupancy?

<p>convenience store</p> Signup and view all the answers

The gaming floor of a casino shall be classified as a Group _____ occupancy.

<p>A-2</p> Signup and view all the answers

Group ______ occupancy classification is to be assigned to a facility where combustible dusts are generated in a manner that creates a fire explosion hazard.

<p>H-2</p> Signup and view all the answers

A foster-care facility providing care on a 24-hour basis to six or more infants/toddlers (2½ years of or less) is classified as a Group _______ occupancy.

<p>E</p> Signup and view all the answers

Prior to any permitted increases, the maximum allowable quantity per control area of Class IB flammable liquid permitted in a storage condition in a one-story Group F-1 occupancy is ____ gallons.

<p>120</p> Signup and view all the answers

A facility used for supervised custodial care and housing more than 16 persons is classified as a Group _____ occupancy.

<p>I-1</p> Signup and view all the answers

Which one of the following uses is not considered a Group M occupancy?

<p>motor vehicle showroom</p> Signup and view all the answers

A fraternity house with 40 occupants is considered a Group ______ occupancy.

<p>R-2</p> Signup and view all the answers

Which one of the following facilities with 12 residents living in a supervised environment and receiving custodial would not be considered a Group R-4 occupancy?

<p>detoxification facility</p> Signup and view all the answers

Which of the following uses is not considered a Group S-2 occupancy?

<p>stable</p> Signup and view all the answers

A food processing establishment not associated with a restaurant or similar dining facility is classified as a Group B occupancy where it is a maximum of ______ square feet in floor area.

<p>2500</p> Signup and view all the answers

A manufacturing facility utilizing highly toxic materials exceeding the maximum allowable quantities set forth in Table 307.1(2) is considered a _____ occupancy.

<p>H-4</p> Signup and view all the answers

Aerosol storage buildings shall be classified as Group _____ occupancy when constructed in accordance with the International Fire Code.

<p>S-1</p> Signup and view all the answers

Owner-occupied lodging houses are permitted to be constructed in accordance with the International Residential Code where there are a maximum of ______ guest rooms.

<p>5</p> Signup and view all the answers

Where training and skill development use occurs in other than school or academic program, it is classified as a(n) Group ____ occupancy.

<p>B</p> Signup and view all the answers

A congregate living facility (transient) with an occupant load of 8 persons is to be classified as a Group _____ occupancy.

<p>R-3</p> Signup and view all the answers

By definition, a transient dwelling unit or sleeping unit has a maximum occupancy period of _____ days.

<p>30</p> Signup and view all the answers

Unless protected by an automatic sprinkler system, what is the minimum required fire separation between a 350-square-foot laundry room and the manufacturing building it is incidental to?

<p>1-hour fire barrier and/or horizontal assembly</p> Signup and view all the answers

What minimum level of incidental use protection is required for an incinerator room located in a manufacturing facility?

<p>separation of two hours and an automatic sprinkler system</p> Signup and view all the answers

What minimum level of incidental use protection is required for a chemistry laboratory/classroom in a high school?

<p>either a 1-hour fire barrier/horizontal assembly or an automatic sprinkler system</p> Signup and view all the answers

Where an automatic sprinkler system without a fire barrier is utilized for the protection of incidental use areas, what minimum level of separation is required?

<p>construction capable of resisting the passage of smoke</p> Signup and view all the answers

Aggregate accessory occupancies are limited to a maximum floor area of _____ of area of the story in which they are located.

<p>10 percent</p> Signup and view all the answers

Any accessory occupancy area classified as a Group ______ occupancy must always be separated by a fire barrier and/or horizontal assembly from other occupancy buildings.

<p>H</p> Signup and view all the answers

Where the provisions for nonseparated occupancies are used for a mixed-occupancy building, the most restrictive ____ requirements shall apply to the nonseparated uses.

<p>Chapter 9 (fire protection)</p> Signup and view all the answers

Where the provisions for separated occupancies are used for a nonsprinklered mixed-occupancy building, the minimum separation between a Group A-2 and Group B occupancy shall be a ____.

<p>2-hour fire barrier/horizontal assembly</p> Signup and view all the answers

Where the provisions for separated occupancies are used for a sprinklered mixed-occupancy building, the minimum separation between a Group H-2 and Group F-1 occupancy shall be a ____.

<p>2-hour fire barrier/horizontal assembly</p> Signup and view all the answers

Where the provisions for separated occupancies are utilized for a fully sprinklered building housing both a Group A-2 occupancy and a Group R-1 occupancy, the minimum required separation between the two occupancies shall be a ____.

<p>1-hour fire barrier/horizontal assembly</p> Signup and view all the answers

Under the provisions for separated occupancies, what is the minimum hourly fire-resistance-rated separation required between Group F-1 occupancy and a Group S-1 occupancy where located in a nonsprinklered building?

<p>0 hours (no separation requirement)</p> Signup and view all the answers

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Study Notes

Institutional and Miscellaneous Occupancies

  • Institutional occupancy corresponds to Group I.
  • Group U occupancy is designated for miscellaneous and utility structures.

Accessory Occupancies and Assembly Areas

  • Accessory religious educational rooms can remain as one occupancy if the load is below 100 occupants.
  • Accessory assembly areas may be classified as Group B if the maximum floor area does not exceed 749 square feet.

Educational and Recreational Facilities

  • In a Group E middle school, assembly areas don't require separation from the main building.
  • Indoor hockey arenas fit under Group A-4 occupancy classification.

Commercial and Mixed Occupancies

  • A convenience store is not classified as Group B occupancy.
  • The gaming floor of a casino is categorized as Group A-2 occupancy.

Special Occupancy Classifications

  • Facilities generating combustible dusts create a fire hazard and fall under Group H-2.
  • A foster-care facility caring for six or more infants/toddlers fits into Group E occupancy.

Storage and Manufacturing Classifications

  • The maximum allowable quantity of Class IB flammable liquid in a one-story Group F-1 occupancy is 120 gallons.
  • Custodial care facilities for more than 16 persons are classified as Group I-1 occupancy.
  • Highly toxic material manufacturing facilities exceeding limits are classified as Group H-4.

Temporary and Accessory Occupancies

  • Fraternity houses with 40 occupants are designated as Group R-2 occupancy.
  • A detoxification facility with 12 residents is not classified as Group R-4.
  • Stables do not classify as Group S-2 occupancy.

Food Processing and Lodging

  • Food processing establishments not associated with dining are classified as Group B if floor area is up to 2500 square feet.
  • Owner-occupied lodging houses can build under the International Residential Code with a maximum of 5 guest rooms.

Training and Living Facilities

  • Training or skill development areas outside a school context are classified as Group B occupancy.
  • A transient living facility with 8 persons is categorized as Group R-3 occupancy.

Fire Separation and Protection

  • Transient dwelling units have a maximum occupancy period of 30 days.
  • Minimum fire separation for a 350-square-foot laundry room and an incidental manufacturing building is a 1-hour fire barrier.
  • An incinerator room needs a two-hour separation plus an automatic sprinkler system for protection.

Laboratories and Incidental Use Areas

  • Chemistry laboratories/classrooms require either a 1-hour fire barrier or an automatic sprinkler system.
  • Automatic sprinkler use without a fire barrier mandates construction that resists smoke passage.

Accessory Occupancy Limitations

  • Aggregate accessory occupancies can occupy up to 10% of the area's story.
  • Group H accessory areas must always be separated from other occupancies by a fire barrier.

Mixed Occupancy Separations

  • Non-separated occupancies follow the most restrictive Chapter 9 fire protection requirements.
  • Mixed-occupancy buildings must maintain a 2-hour fire barrier between Group A-2 and Group B when nonsprinklered.
  • A fully sprinklered building requires a 1-hour fire barrier between Group A-2 and Group R-1 occupancies.

Fire Resistance Ratings

  • Nonsprinklered buildings have no separation requirement between Group F-1 and Group S-1 occupancies, reflecting a zero-hour fire resistance rating.

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