Podcast
Questions and Answers
What class has a flame spread index of 0-25?
What class has a flame spread index of 0-25?
- Class A (correct)
- Class B
- Class C
What class has a flame spread index of 26-75?
What class has a flame spread index of 26-75?
- Class A
- Class B (correct)
- Class C
Which class has a smoke development index of 0-450?
Which class has a smoke development index of 0-450?
- Class C (correct)
- Class B
- Class A
Which table gives the interior wall and ceiling finish requirements by occupancy?
Which table gives the interior wall and ceiling finish requirements by occupancy?
Curtains in a Group R-2 dwelling unit shall not take up more than how much space?
Curtains in a Group R-2 dwelling unit shall not take up more than how much space?
When interior finishes are attached to furring strips attached directly to a fire resistance rated structure, the furring strips shall not exceed how much?
When interior finishes are attached to furring strips attached directly to a fire resistance rated structure, the furring strips shall not exceed how much?
An interior finish in a non-sprinklered Group I-2 occupancy shall be of what class in a room?
An interior finish in a non-sprinklered Group I-2 occupancy shall be of what class in a room?
An interior finish in a sprinklered Group F occupancy shall be of what class in an exit stairway?
An interior finish in a sprinklered Group F occupancy shall be of what class in an exit stairway?
An interior finish in a sprinklered Group I-3 occupancy shall be of what class in an exit stairway?
An interior finish in a sprinklered Group I-3 occupancy shall be of what class in an exit stairway?
An interior finish in a non-sprinklered Group F occupancy shall be of what class in an exit stairway?
An interior finish in a non-sprinklered Group F occupancy shall be of what class in an exit stairway?
Flashcards
Class A Interior Finish
Class A Interior Finish
Materials with a flame spread index (FSI) of 0-25.
Class B Interior Finish
Class B Interior Finish
Materials with a flame spread index (FSI) of 26-75.
Class C Interior Finish
Class C Interior Finish
Materials with a smoke development index (SDI) of 0-450.
Table 803.9
Table 803.9
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Curtain Area Limit in Group R-2
Curtain Area Limit in Group R-2
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Maximum Furring Strip Thickness
Maximum Furring Strip Thickness
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Interior Finish in Non-Sprinklered Group I-2
Interior Finish in Non-Sprinklered Group I-2
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Interior Finish in Sprinklered Group F - Exit Stairway
Interior Finish in Sprinklered Group F - Exit Stairway
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Interior Finish in Sprinklered Group I-3 - Exit Stairway
Interior Finish in Sprinklered Group I-3 - Exit Stairway
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Interior Finish in Non-Sprinklered Group F - Exit Stairway
Interior Finish in Non-Sprinklered Group F - Exit Stairway
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Study Notes
Flame Spread Classification
- Class A: Flame spread index of 0-25 indicates high resistance to fire spread.
- Class B: Flame spread index of 26-75 denotes moderate fire resistance.
- Class C: Flame spread index of 76-200 is less resistant, typically specified for certain applications.
Smoke Development Index
- Class C: Smoke development index ranges from 0-450, indicating potential smoke production.
Interior Finish Requirements
- Table 803.9 outlines the interior wall and ceiling finish requirements by occupancy type, ensuring safety standards are met.
Space Considerations
- In Group R-2 dwelling units, curtains must not occupy more than 10% of the wall space to avoid excessive fire risk.
Furring Strips Regulations
- Furring strips that are attached directly to a fire-resistance rated structure must not exceed a thickness of 1 3/4 inches to maintain structural integrity in fire situations.
Occupancy-Specific Requirements
- Group I-2 occupancy: Interior finishes must comply with Class B standards if non-sprinklered.
- Group F occupancy:
- In a sprinklered environment, exit stairway finishes must be Class C.
- In a non-sprinklered environment, exit stairway finishes must meet Class B standards.
- Group I-3 occupancy: Requires Class A finishes in exit stairways, reflecting higher safety expectations.
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