Fire Tactics Flashcards
Class 2: noncombustible
The walls, partitions, columns, floors, and roofs in these buildings are noncombustible, but they provide less fire resistance then Class 1 buildings.
They’re don’t withstand the effects of fire nor prevent its spread. Noncombustible refers to the fuel contributed by the structural components, not its resistance to fire spread.
Usually have exposed floors and roof systems.
Least stable in terms of collapse
Ex. Stores and warehouses
Class 1 (Type 1): fire resistive
The walls, partitions, columns, floors, and roof of fire-resistive buildings are noncombustible.
Designed to withstand the effects of fire for a limited time, also known as fireproof bldgs.
Buildings of poured or precast concrete and steel framed buildings with an applied fireproofing meet these requirements.
Ex. High-rises
Class 3: Ordinary construction (brick and wood joist)
Masonry and other noncombustible walls with a 2 hour fire resistive rating. The floors, roofs, and interior partitions are made of wood.
Can be found in anything from residential to commercial to manufacturing properties.
Class 4: Heavy timber
Exterior walls are made of masonry or noncombustible with a 2 hour fire resistive rating. The interior is made of heavy timber min. 8x8 columns, 3 inch roofing planks
Heavy fire load, excellent in terms of collapse resistance;
Class 5: wood frame
Walls, floors, and roofs are made wholly or in part of wood or some other combustible material.
Wood frame pose less of a collapse hazard then does noncombustible one.
Houses
Ladder operations can use this acronym:
LOVERS U
Laddering Overhhaul Ventilation E-Forcible entry Rescue Search/Salvage Utilities
After ____ sec of being disoriented or lost, call a mayday.
30 seconds
After ______ seconds of a member missing or unaccounted for IC should call a mayday.
60
What is the collapse zone for end walls that have rafters resting on truss and bearing on a wall?
2 1/2 times height of wall
*stay in the flanking positions at the corners of the building.
P351
Construction has many implications:
- Degree of compartmentalization
- Degree to which the building itself contributed to fire load
- Number of hidden voids
- The ability of a building to resist collapse
Most residential rooms have a fire load of __lb of fuel per sq foot.
5
p30
Each gallon of water absorbs about _______,btu when heated from 70 to turning to steam.
9,275
p30
