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Safety Considerations 4322.1. Dangerous Building ConditionsPersonnel ProtectionLogisticsPulling walls and ceilings. Dangerous Building Conditions. Weakened floors and stairwaysWeakened steel structural members (500 degrees)Decomposed mortar / ChimneysGussets pulled out of wooden truss system
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1. Salvage and Overhaul4322.1 through 4322.4
Bob Kernaghan
2. Safety Considerations 4322.1 Dangerous Building Conditions
Personnel Protection
Logistics
Pulling walls and ceilings
3. Dangerous Building Conditions Weakened floors and stairways
Weakened steel structural members (500 degrees)
Decomposed mortar / Chimneys
Gussets pulled out of wooden truss system
Roof mounted equipment
4. Personnel Protection Full PPE
Use SCBA - Higher levels of toxic gasses than during fire
Pace yourself
Use fresh crew if possible
5. Logistics Bring in Lighting
Holes
Tripping Hazards
Stairways
Any other danger areas
R & R station
6. Pulling walls and ceilings Make sure area is clear of other people
Do not pull too much at one time
Do not pull structural members without coordinating with command
Beware of energized electrical lines and water lines in concealed spaces
7. Overhaul Making buildings and areas safe
Searching for hidden fires
Extinguishing hidden fires
8. Making Buildings and Areas Safe4322.2 Carefully inspect for:
Sagging floors or ceilings
Bulging or cracked walls
Weakened roofs
Loose cornices and overhangs
9. Securing the Structure Weak areas should be put off limits
Shore or brace unstable walls or ceilings
Holes in floors or stairways should be barricaded
Utilities shut off
Sharp objects – mitigate, barricade, warning tape (Yellow and Black)
10. Securing the Contents Stock on weakened shelving
Overhead hazards
Weatherproof the structure / contents
Turn structure over to owners or law enforcement
11. Securing the Exterior Possible building collapse
Isolate and deny entry at least 1 ˝ times the height.
Remove valuable property within potential collapse area.
Downed Electric Lines
Minimum 25’ exclusion area
Yellow and Black tape
12. Quiz 4322.2 What must be done before allowing
occupants to take possession of the
building?
Make sure building is safe. Repair or
mark any hazards at the site.
13. What should you do about an unsafe
area?
Make off-limits to personnel
What should be done with holes in
floors and stairways?
Hazard tape and barricade
14. What should you do if you suspect
damage to utilities?
Turn off / notify utility companies
On suspicious fire, what should you do
before turning the building back to the
occupants?
Call for an investigator
15. Searching for Hidden Fire4322.3 Sight
Peeling paint
Discoloration
Smoke from cracks
Hearing
Popping or crackling
Hissing of steam
16. Touch – feel with back of hand
Walls
Ceilings
Floors
Doors
Instruments
Heat detectors
TIC
Wear SCBA
Toxic gasses
Oxygen deficiency
17. Common concealed spaces
Walls
Partitions
Attics
Cocklofts
Basements
False ceilings
Below floors
Air shafts
Elevator shafts
Pipe chases
Ducts
Around merchandise
Under debris
In appliances and machinery
18. If a Hidden Fire is Suspected You must gain entry
Pulling walls and ceilings
Resulting damage is minor compared to a rekindle
Do not cut structural members
If a burned member extends into an adjacent occupancy, check next door
Remove covering over burned structural members until unburned portion is reached
19. Quiz 4322.3 Three senses used to detect hidden fire?
Sight, Hearing, Touch
Why wear SCBA
Toxic gasses, Oxygen deficiency
What part of hand feels for heat?
Back of hand
Give three examples of hidden spaces.
(Look ‘em up!)
20. Extinguishing Hidden Fires4322.4 Full PPE & SCBA
Hoselines – smaller lines OK
Burning debris
Dunk smaller items in sink/tub
Take larger items (mattresses) outside
Inform investigator before moving
Take care in dusty environements
Hay/cotton bales
Wettng agents
Heavy equipment to separate
21. Quiz 4322.4 Do not remove SCBA until …
Clear of combustion by-products
Use _______ handlines in overhaul.
Smaller
Before moving items, notify …
Fire investigation
Upolstered furniture is more easily
extinguished if you add a …
Wetting agent
Stirring up a lot of of dust can cause an …
Explosion
22. Salvage and overhaul are important responsibilities of the fire service Minimize property loss
Prevent rekindle
Mitigate hazards
Public Relations
Be safe!
Tired firefighters get hurt
Mark and barricade hazards
Wear PPE
SCBA
23. Material based on the CDF 4300 training manual.
The authors of this power point grant permission for use in training.