Building Construction Types
This type of construction can be expected to remain structurally stable longer than other types during a fire.
Type I
This roof style commonly has an elevated center along a ridge line and a roof deck that slopes down to the eaves.
Pitched
Fires involve a heat-producing chemical reaction between fuel and this element.
Oxidizer
This mechanism is the transfer of heat through and between solids.
Conduction
These conditions, often found in type III construction buildings, are likely to negatively influence fire behavior.
These buildings are composed fo noncombustible materials taht do not add to the fuel load.
Type II
This piece of metal is used as a connection point for wood trusses.
Gusset plate
This element of the fire tetrahedron is included specifically to explain flaming (gas-phase) combustion.
Chemical chain reaction
This mechanism usually involves the transfer of heat through the movement of hot smoke and fire gases.
Convection
This type of phenomenon occurs when the fire rapidly transitions from the growth stage to the fully developed stage.
Flashover
This classification includes buildings with exterior load-bearing walls composed entirely of wood and is commonly referred to as wood frame construction.
Type V
This type of door is usually required as and exit door in a means of egress.
Swinging door
This is the minimum temperature at which a fuel in the air must be heated in order to start self-sustaining combustion.
Autoignition temperature (AIT)
Radiation
Pulsing smoke movement around openings in the building is an indicator for this proitential event.
Backdraft
In this construction type, interior walls, columns, beams, floors and roofs are completely or partially constructed of wood.
Type III
These are often used as dividers in large meeting rooms.
Folding doors
This product of combustion acts as a chemical asphyxiant by excluding oxygen from the blood, leading to hypoxia.
Carbon Monoxide (CO)
The four stages of fire development include incipient, growth, decay and this stage.
Fully-developed
These roof-mounted units add substanctial load to the roof and increase the probabiltiy of collapse.
HVAC units
These buildings are resistant to structural collapse because of the mass of heavy timber structural members.
Type IV
This window component consists of members that form a perimeter of the window.
Frame
This is the most common source of heat in combustion reactions.
Chemical energy
In a compartment fire, the interface between the hot gas layers and cooler air is commonly referred to as this.
Neutral Plane
These truss systems pose a danger to firefighters because they can fail after only 5-10 minutes of exposure to fire.