Building Construction Related to the Fire Service.

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Author:
ryan.preast
ID:
171795
Filename:
Building Construction Related to the Fire Service.
Updated:
2012-10-15 16:01:19
Tags:
structural fire resistance building classification
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Building classes
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  1. Fire Resistance Rating
    How long a material can resist typical fire as measured on a time-temperature curve.
  2. Fire Stop 
    Solid material used to prevent or limit vertical and horizontal spread of fire and products of combustion.
  3. Fire Resistance Directory
    List of buildings tested and given a fire rating.
  4. Non-combustible Materials
    Not capable of supporting combustion under normal circumstances.
  5. Type I construction
    Fire-resistive.

    Protected steel frame construction 

    Reinforced concrete and pre cast concrete

    Steel beams covered with spray on fireproofing or fully encased in underwriters lab designed system.
  6. Type II construction
    Non-combustible or protected non-combustible.

    Materials will not contribute to fire spread or growth

    May have combustibles on exterior (balconies, wall coverings)
  7. Type III construction
    Exterior protected (masonry)

    Churches, schools, apartment dwellings, mercantile shops.
  8. Type IV construction
    Heavy Timber

    Lumber great than 4" in diameter

    Perminant partitions and structural members must have minimum 1-hour rating.
  9. Type V construction
    Wood Frame.

    Materials dimensions must be smaller than type IV construction.

    Most residential homes.
  10. Masonry
    Bricks, blocks, stones, and unreinforced and reinforeced concrete products.
  11. NFPA 220 Three digit classification
    • Digit one-
    • Fire rating in hours for exterior walls

    • Digit two- 
    • Fire rating in hours for structural frames or columns that support loads of more than one floor.

    • Digit three-
    • Fire rating in hours for floor condtruction.

    EXAMPLE: Type I classification 4-4-3 or 3-3-2
  12. Fire/Fuel Load
    Potential heat release of a fire within a compartment.
  13. International Building Code Classifications
    • Group A- Assembly
    • Group B- Business
    • Group E- Education
    • Group F- Factories
    • Group H- High Hazard
    • Group I- Institutional
    • Group M- Mercantile
    • Group R- Residential 
    • Group S- Storage
    • Group U- Utility and Miscelaneous
  14. Group R
    • R1- Hotels and motels
    • R2- Apartments, dorms
    • R3-Permanent Occupancies not more than two dwelling units
    • R4-Assisted living facilities 5-16 occupants
  15. Group A
    • A1-Fixed seating theatre
    • A2-Nightclubs, restaurants
    • A3-Bowling alleys, Churches, exhibition halls
    • A4- Sports arenas
    • A5- Outdooe arenas, Grand stands

    • Class A 1,000 people or more
    • Class B 301-1,000 persons
    • Class C 50- 300 persons
  16. Group F
    • F-1 Moderate Hazard (aircraft, furniture, metals, millwork)
    • F-2 Low Hazard (brick, masonry, glass products and gypsum)
  17. Group H 
    • H-1 Detonation hazard
    • H-2 Deflagration hazard
    • H-3 Materials readily support combustion or pose physical hazard
    • H-4 Health hazard
    • H-5 Hazardous production
  18. Group I
    • I-1 Assisted living holding more than 16 persons on 24-hour basis. (capable of self rescue)
    • I-2 Medical, surgical , psychiatric, or nursing care more than 5 people not capable of self rescue or need assistance
    • I-3 Prisons, detention facilities more than 5 people under restraint.
    • I-4 Child and adult care facilities
  19. Group R
    • R-1 Sleeping units containing mostly transients (boarding houses, hotel, motels)
    • R-2 More than two dwelling units with permant residency (apartment, non transient hotel)
    • R-3 Permant occupancy and not classifie in R1,R2, R$ or I
    • R-4 Residential/assisted living facilities with more than 5 but less than 16 occupants.
  20. Group S
    • S-1 Moderate Hazard Storage (books, bags, linoleum, lumber)
    • S-2 Low Hazard Storage (asbestos, bagged cemetn, electric motors, glass and metal parts.)

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