Ventilation training
This presentation is the property of its rightful owner.
Sponsored Links
1 / 32

VENTILATION TRAINING PowerPoint PPT Presentation


  • 232 Views
  • Uploaded on
  • Presentation posted in: General

VENTILATION TRAINING. OBJECTIVES PRINCIPLES OF VENTILATION ADVANTAGES/DISADVANTAGES FOR TYPES OF VENTILATION TERMS AND METHODS SAFETY OPERATIONS. VENTILATION. Define Ventilation The systematic removal of and replacement of heated air, smoke, and gases within a structure with cooler air.

Download Presentation

VENTILATION TRAINING

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Ventilation training

VENTILATION TRAINING

  • OBJECTIVES

  • PRINCIPLES OF VENTILATION

  • ADVANTAGES/DISADVANTAGES FOR TYPES OF VENTILATION

  • TERMS AND METHODS

  • SAFETY

  • OPERATIONS


Ventilation

VENTILATION

  • Define Ventilation

  • The systematic removal of and replacement of heated air, smoke, and gases within a structure with cooler air.


Advantages of ventilation

ADVANTAGES OF VENTILATION

  • RESCUE OPERATIONS

  • Fresh air for victims to breath

  • Improved visibility for rescuers

  • Safety of operations enhanced


Fire attack and extinguishment

Fire Attack and Extinguishment

  • Channeling of smoke and gas reduces spread of fire

  • Reduces risk of steam burns

  • Improves visibility

  • Reduces smoke damage


Property conservation

Property Conservation

  • Reduces water, heat and smoke damage

  • Prevents “mushrooming” fire spread

  • Confines fire to area of origin


Hazardous conditions

Hazardous Conditions

  • FLASHOVER

    • ROOM IS HEATED TO IGNITION TEMPERATURE OF COMBUSTIBLES WITHIN

    • VENTILATION DOES NOT ALLOW FOR TEMPERATURE BUILDUP


Backdraft

BACKDRAFT

  • Sufficient heat has raised material to ignition temperature but insufficient oxygen is present to produce fire.

  • Explosive potential and danger present

  • Warning signs

    • smoke stained windows, smoke puffing

    • black smoke turning dense gray/yellow

    • small flames visible on exterior/excessive heat


Questions regarding ventilation

Questions regarding Ventilation

  • Is there a need to ventilate?

  • Where should I ventilate?

  • What type of ventilation should I use?

  • Is the structure safe for roof operations?


Considerations

CONSIDERATIONS

  • LIFE SAFETY

  • VISIBLE SMOKE

  • BUILDING INVOLVED

  • LOCATION AND EXTENT OF FIRE

  • SELECTION OF LOCATION TO VENTILATE


Don ts of ventilation

DON’TS OF VENTILATION

  • DON’T MAKE LOTS OF SMALL VENTS

  • DON’T MAKE ADDITIONAL DAMAGE

  • DON’T VENT WITHOUT ATTACK LINES IN PLACE!!

  • DON’T FORGET FIREFIGHTER SAFETY!


Safety precautions

SAFETY PRECAUTIONS

  • UTILIZE PREFIRES FOR ROOF CONSTRUCTION

  • ROOF LADDERS ON PITCHED ROOFS

  • WIND DIRECTION (AT YOUR BACK)

  • DUE CARE NOT TO CUT STRUCTURAL SUPPORTS

  • BE AWARE OF OVERHEAD WIRING

  • START POWER TOOLS ON GROUND


Safety

SAFETY

  • BE AWARE OF WARNING SIGNS OF UNSAFE ROOF CONDITIONS

    • MELTING ASPHALT

    • SPONGY ROOF

    • SMOKE FROM ROOF

    • FIRE FROM ROOF


Safety1

Safety

  • Two means of egress off the roof should be provided for roof operations.

  • They should be well apart from each other but close to the work area.


Yes more safety rules

YES MORE SAFETY RULES

  • PROPER PPE INCLUDES USING SCBA

  • TEAM WORK ALWAYS MINIMUM 2

  • ANGLE OF CUT NOT TOWARD YOUR BODY

  • CHECK ROOF INTEGRITY WITH TOOL NOT BODY

  • LADDERS EXTEND 5 RUNGS ABOVE ROOF LINE, AND SECURE.

  • HOSE LINE & SECONDARY EGRESS


Vertical ventilation

VERTICAL VENTILATION

  • CONSIDER TYPE OF BUILDING

  • ROOF CONSTRUCTION

  • LOCATION, DURATION, EXTENSION OF FIRE

  • SAFETY PRECAUTIONS

  • ESCAPE ROUTES

  • MANPOWER, EQUIPMENT, LOCATION


Equipment

Equipment

  • Describe purpose and use of each item and list an alternate use or tool.


Preparation

Preparation

  • All equipment available

  • Power equipment started

  • Straps and ropes available to carry and or lift equipment


Initial actions

Initial Actions

  • “Sound” the roof

  • Equipment vs Foot

  • Ongoing endeavor on all roofs.

  • Notice FF on air. Why carry 40 lbs on your back if you do not use it.


Inspection cut

INSPECTION CUT

  • Keep away from travel area

  • Cut large enough to learn roof layout

  • Do not cut through support members


Kerf cut

KERF CUT

  • Safety on larger roofs

  • Firefighter awareness of conditions

  • Egress considerations


Opening a flat roof

Opening a Flat Roof

  • Locate using ventilation factors

  • Locate roof supports by sounding

  • Mark by scratching outline with axe

  • Pry up or lever with axe

  • Push tool thru opening to open ceiling below

D

C

B

A


Opening a pitched roof

Opening a Pitched Roof

  • Sound roof to find support members (hollow & bounce between rafters)

  • Cut furthest along rafter first

  • Wind at your back

  • Use rubbish hook or pike pole to open ceiling

B

D

A

C


Horizontal ventilation

Horizontal Ventilation

  • ADVANTAGES

    • FF Safety

    • Aids natural ventilation

    • Speeds removal of contaminants

    • Reduces smoke damage

    • Promotes good PR


Horizontal ventilation1

Horizontal Ventilation

  • Disadvantages

    • Fresh air in volume can intensify fire

    • Requires special equipment (Power fans)

    • Carbon Monoxide levels may increase

    • Hidden fires may extend

    • Depends on power source (electrical fans)


Type of ventilation

Type of Ventilation

  • What type of ventilation?

  • Method?

  • When would you utilize?


Type of ventilation1

Type of Ventilation

  • What type of ventilation?

  • Method?

  • When would you use?

  • What is missing from the picture? (Waldo)


Type of ventilation2

Type of Ventilation

  • What type of Ventilation?

  • What method?

  • When would you utilize?


Larger ventilation scenarios

Larger Ventilation Scenarios

  • Positive pressure

  • Proper channeling of smoke and gases

  • Anything wrong in this picture?


Fan placement

Fan Placement

  • The fan should be placed at a low point and in the direction of fire attack.

  • The exit point of smoke and gas should always be accounted for.


Review

REVIEW

  • PRINCIPLES/PURPOSE OF VENTILATION

  • ADVANTAGES AND DISADVANTAGES OF TYPES OF VENTILATION

  • SAFETY CONCERNS

  • OPERATIONAL PROCEDURES


  • Login