Study Session 17 (Chapters 8, 12, 25, 30)
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Where classified in accordance with ASTM E 84, Class B interior wall and ceiling finishes have a flame spread index of ___ and a smoke-developed index of 0-450.

26-75

Unless a noncombustible material or qualified by tests, an interior wall or ceiling finish that is a max. of ___ inch thick shall be applied directly against a noncombustible backing.

1/4

The wall finish in a dining room classified as Group A-2 in a sprinklered building shall have a min. flame spread index of Class ___.

C

The wall finish in an interior exit stairway of a four story nonsprinklered Group B office building shall have a min. FSI classification of Class ___.

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

In a patient room of a fully sprinklered Group I-2 occupancy, the interior finish materials are permitted to be a max. of Class C when the room has a max. capacity of __ persons.

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

Unless in compliance with the Method B test protocol, textile wall coverings shall have a min. Class ___ FSI where installed in a fully-sprinklered art gallery.

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

In a fully sprinklered Group I-1 occupancy, carpet installed as an interior floor finish in an exit passageway shall be a min. ____.

<p>Class II</p> Signup and view all the answers

Combustible trim, excluding handrails and guardrails, shall be limited to a max. of ___ percent of the aggregate wall or ceiling area in which it is attached.

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

In a fully sprinklered Group A auditorium, complying flame-resistant decorative material shall be limited to a max. of __ percent of the aggregate area of walls and ceilings.

<p>75</p> Signup and view all the answers

What is the min. required flame spread index and smoke-developed index for materials, other than foam plastic, used as interior trim?

<p>Class C</p> Signup and view all the answers

Within a sleeping unit of a Group R-1 hotel, a space-heating system shall be provided that is capable of maintaining a min. indoor temperature of ___ at a point 3 feet above the floor on the design heating day.

<p>68 F</p> Signup and view all the answers

Where natural light by means of exterior glazed openings is utilized as the required lighting for an occupied space, the min. net glazed area shall not be less than __ percent of the floor area of the room served.

<p>8</p> Signup and view all the answers

A stairway within a dwelling unit in a Group R-2 apartment building shall be provided with a min. illumination level on tread runs of __ foot candle(s).

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

A floor/ceiling assembly between a dwelling unit and a public area within the same building shall have a min. impact insulation class (IIC) rating of ____.

<p>45</p> Signup and view all the answers

Occupied spaces in an office building shall have a min. ceiling height of ___.

<p>7' 6&quot;</p> Signup and view all the answers

Every dwelling unit shall have at least one room with a min. floor area of ___ s.f.

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

The min. size of the required access opening to a crawl space shall be:

<p>18&quot; by 24&quot;</p> Signup and view all the answers

The min. size of the required access opening to an attic area over 30 inches in clear height shall be ____.

<p>20&quot; by 30&quot;</p> Signup and view all the answers

Where urinal partitions are required, the partitions shall begin at a max. height of ___ inches above the finished floor and extend to a min. height of ___ inches above the floor surface.

<p>12, 60</p> Signup and view all the answers

Roof soffits are considered weather-exposed surfaces except for those portions located a min. horizontal distance of __ feet from the outer edges of the soffit.

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

Which of the following locations is the use of water-resistant gypsum backing board permitted?

<p>As a base for tile in WC compartment walls</p> Signup and view all the answers

For exterior plastering, the second coat shall have a max. variation of ___ inch in any direction under a 5-foot straight edge.

<p>1/4</p> Signup and view all the answers

A fire service access elevator shall be provided with an enclosed lobby a min. of ___ s.f.

<p>150</p> Signup and view all the answers

Where elevators are provided in buildings with four or more stories above grade plane,...

<p>24-inch by 84 inch</p> Signup and view all the answers

Study Notes

Fire and Building Safety Guidelines

  • ASTM E 84 Class B Finishes: Flame spread index between 26-75; smoke-developed index of 0-450.
  • Interior Wall/Ceiling Thickness: Maximum thickness of 1/4 inch for finishes directly against noncombustible backing unless using noncombustible material.
  • Dining Room Wall Finish: Minimum flame spread index of Class A required for Group A-2 dining room finishes in sprinklered buildings.
  • Exit Stairway Finish: Minimum flame spread index of Class A needed for wall finish in interior exit stairways of four-story nonsprinklered Group B office buildings.

Occupancy Specific Regulations

  • Patient Room Capacity: In fully sprinklered Group I-2 occupancy, interior finish materials can be a maximum of Class C for rooms with a maximum capacity of 4 persons.
  • Textile Wall Coverings: Minimum Class A flame spread index required in fully-sprinklered art galleries unless compliant with Method B test protocol.
  • Carpet in Exit Passageways: Carpeting in fully sprinklered Group I-1 occupancy should have a minimum Class II rating.

Decorative and Trim Regulations

  • Combustible Trim Limits: Maximum of 10% of aggregate wall/ceiling area for decorative combustible trim in buildings.
  • Flame-Resistant Materials in Auditories: Maximum of 75% of aggregate area for flame-resistant decorative materials in fully sprinklered Group A auditoriums.
  • Interior Trim Requirements: Minimum Class C for flame spread index and smoke-developed index for materials other than foam plastic.

Heating and Lighting Specifications

  • Minimum Indoor Temperature: Space-heating systems must maintain at least 68°F in sleeping units of Group R-1 hotels.
  • Natural Light Requirements: Minimum net glazed area for natural light should be no less than 8% of the floor area.
  • Stairway Illumination: Minimum illumination of 1 foot candle required on tread runs of stairways in Group R-2 buildings.

Acoustics and Space Regulations

  • Impact Insulation Class (IIC): Minimum rating of 45 required for floor/ceiling assemblies between dwelling units and public areas.
  • Minimum Ceiling Height: Occupied spaces in office buildings must have at least 7 feet 6 inches ceiling height.
  • Minimum Floor Area for Dwelling Units: At least one room must have a minimum floor area of 120 square feet.

Access and Utility Specifications

  • Crawl Space Access Size: Minimum access opening dimensions of 18 inches by 24 inches required for crawl spaces.
  • Attic Access Requirements: Minimum access opening size of 20 inches by 30 inches needed for attic areas over 30 inches in height.

Washroom and Construction Standards

  • Urinal Partition Heights: Maximum height at which partitions begin is 12 inches; minimum height is 60 inches from finished floor.
  • Roof Soffit Regulations: Considered weather-exposed surfaces unless at least 10 feet horizontal distance from outer edges.
  • Water-Resistant Gypsum Board Usage: Permitted as tile base in water closet compartments, over vapor retarders in shower compartments, and in areas with high humidity.

Plastering and Elevator Standards

  • Plastering Variation Tolerance: Maximum variation of 1/4 inch under a 5-foot straight edge for second coat of exterior plastering.
  • Fire Service Access Elevator: Minimum lobby area of 150 square feet required for a fire service access elevator.
  • Elevator Opening Dimensions: Required size for elevator access in buildings with four or more stories is 24 inches by 84 inches.

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Description

This quiz consists of flashcards covering critical concepts from Chapters 8, 12, 25, and 30. Each card provides definitions and classifications related to flame spread indices and wall finishes as per ASTM standards. Perfect for students looking to reinforce their knowledge on fire safety and building codes.

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