Fire In Buildings - Module 4 & 5 (Building Features / Fires In Roofs) Flashcards
What are the hazards commonly associated leith tunnels?
Access routes are likely to be the same as the smoke egress
Lack of ventilation or natural light
Radiated heat intensifies
Tunnels are highly insulated spaces allowing the possibility of more rapid fire growth
Increased chance of structural damage or spalling
Excessive travel distance may be encountered limiting work duration for FF’s
Arduous working conditions
Communication difficulties
Roof ladders are recommended for use on thatched roofs true or false?
False
What are the hazards associated with thatched roofs?
Floor joists may be irregular spaced due to age of building
Old thatched roofs could contain spores that are hazardous to health
Thatch has excess holes to allow oxygen to enrich fires
What are the hazards associated with Atriums?
Atriums may allow faster more extensive smoke and fire spread between floors, and may allow smoke to spread into escape routes of upper floors
There is the potential for smoke stratification/cold smoke build up in atriums
Failure of glazing around the edge of atriums may cause issues with firefighters working at height
Is a roof classed as a structural element
False
What are the commonly associated hazards of roofs?
Less ventilation
Roofs may contain within the construction or be covered with flammable materials
Limited access for FF’s
FF’s should be aware of temporary and loose flooring within the roof space
What percentage of a maximum floor space is not exceeded to be classed as a mezzanine floor?
50%
What are common causes of fire in thatched roofs?
Garden bonfires, BBQs and fireworks
Lightening
Caused by careless workers
Chimney related
Galleries - a floor that extends across the footprint of the building and is open to the floor below. True or false?
True
Fixed ventilation systems will be provided to supply fresh air for people and vehicles, which can also take smoke out of a tunnel. True or false?
True
What action should crews ensure takes place when tackling basement fires?
Confirm location of fire
Confirm contents of the basement
Check upper floor and adjacent buildings for fire spread
Use TIC to location of flow path
What are the types of thatched roof?
Long straw - shaggy appearance
Water reed - most common the UK
Combed wheat reed - widely found in the West Country
