Ground Ladders The Forgotten Art Lieutenant Todd Wernet










































- Slides: 42
Ground Ladders: The Forgotten Art Lieutenant Todd Wernet Seattle Fire Department
What do we need to know • Ladder Uses • Ladder Construction • Ladder Tactics • Ladder Safety
Ladder Uses • Rescue • Access to upper floors • Ventilation • Bridging • Make-shift structures
Rescue & Access
Ventilation & Bridging
Make-Shift Structures
Ladder Construction Aluminum or Wood
Wooden Ladders DISPELL THE URBAN MYTHS ABOUT WOODEN LADDERS DISCUSS DIFFRENCES IN: – – – SAFETY WEIGHT MAINTENANCE DESIGN COST
Electrical Safety • FEMA statistics indicate that metal ladders cost the U. S. fire service approximately one firefighter fatality a year. • These totals do not reflect non-fatal injuries attributed to these ladders
Aluminum Ladders Metal ladders can suddenly fail if exposed to heat or flame over 200° F (annealing)
Weight The common perception is that aluminum ladders are lighter weight than comparable wood or fiberglass ladders Example: 24’ extension – Wood – Metal – Fiberglass 110# 75 -142# 99 -133#
Maintenance NFPA 1932 requires ground ladders to be visually inspected at least monthly, and after every use – Aluminum & fiberglass require waxing of beams – Wooden ladders require spot finishing – All ladders require minor bolt, rivet and halyard checks
Design • Truss beam • Solid beam • Straight • Extension
Cost Wooden ladders are more expensive up front -24’ Extension Ladder Material • Wood • Fiberglass • Aluminum Cost $1, 600 $ 750 $ 680 Life Indefinite Unknown 15 years
Ladder Tactics • Positional Assignments • Complement • Selection • Carries • Approaches • Raises • Placement
Positional Assignments • Roles & responsibilities of crew members • Two, three, or four person operations • Tools & equipment • PPPN: Company discipline
Ladder Complement NFPA 1904 (1991 edition) requires a minimum complement of 115 feet of ground ladders Multiple configurations are acceptable
Ladder Selection • When in doubt, go with the larger ladder • Your application may change • 5 rung rule
Ladder Placement • Type of Structure • Weather Conditions • Operation • Staffing • Fire Forecast
West Coast & East Coast Loads
Carries Low Shoulder & High Shoulder
Carries Flat & Beam
Approach Diagonal or Perpendicular
Raises Beam & Flat
Raises
Footing the Ladder Old School & New School
Roof Package • Extension Ladder • Roof Ladder • Chainsaw • 6’ Roof Hook
Roof Package
Safety • Everyone’s Responsibility • Proper PPE • Adequate Personnel • Training • Placement
Proper PPE • For drilling this includes a helmet, gloves, and steel toe boots. • For all responses it includes all protective equipment
Adequate Personnel Staffing is part of your initial size-up in the morning. Pre -assign positions (tool assignments) to maximize your effectiveness
Training Make it real: The more you sweat in training, the less you bleed in war
Securing your Fly
Visual Acuity At night you lose 50% of your ability to see hazards
What to take with you • We are all professionals, volunteer or career • Its not enough to just get a ladder vertical • Safety should always be your main concern • We all deserve a round trip ticket
What to take with you • When we do our job right, people live to see another day • We need to pass the importance of the “not-soglamorous” jobs to the next generation
Incident Commanders • Always be aware of what is going on around you • Your people will thank you