CFD Overhaul and Conservation Flashcards
CFD salvage folds
Dry fold – accordion fold
o Finished side up, seam side down
o Folds are 25cm (9 inch)
Wet fold – roll
Purpose of salvage work
To reduce fire, water and smoke damage during and after fires
One-person throw
Should only be used when covering materials that cant be broken and when throwing action will not cause any damage
Rapid method, advantageous when personnel are limited
Counter pay-off – two person
Used when conditions require exact and careful placement of salvage cover
Two-person balloon
If there is sufficient vertical space
Quick to deploy
Sealing or joining salvage covers
Fold it 30cm (12ft) back, overlap then roll the overlap
Removing salvage cover
Santa clause carry
Overhaul
All operations conducted after the main body of the fire has been extinguished
Overhaul includes
Searching for and extinguishing hidden or remaining fire
Place building and its content in a safe condition
Determine cause of fire
Recognizing and preserving evidence of arson
Overhaul safety
toxic gases
Use Drager, wear PPE and SCBA until overhaul is complete
Charged hoseline should be present in case of rekindle
Overhaul safety - toxic gases
Significant threat during overhaul
CO and HCN are common
Salvage materials
Tightly woven, waterproof canvas
Herculite- lightweight, chemically inert and waterproof material
Hidden fire indicators - sight
o Discoloration
o Peeling paint
o Smoke emission from cracks
o Cracked plaster
o Rippled wallpaper
o Burned areas
Hidden fire indicators - touch
Heat felt through walls and floors
Thermal Imaging Camera
May not provide quality images behind reflective materials
If there are discrepancies, the space should be opened and visibly inspected
