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Fires in Residential and Commercial Townhouses and Rowhouses
NOVA MANUAL OVERVIEW Fires in Residential and Commercial Townhouses and Rowhouses
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Objectives: Describe townhouse / rowhouse layouts and types
List first alarm resources Understand positioning and assignments of units Know the role of first arriving unit officer Be familiar with various tactics and strategies
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Types Back to back Piggyback Over / Under Rowhouse Duplex Hybrid
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Back to Back A “back-to-back” is a townhouse consisting of two or more occupancies under one roof connected by the Side Charlie wall.
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Piggyback A piggyback townhouse consists of two stacked dwellings (one over the other), each with a separate address and entrance. These occupancies share a common floor separated by a fire wall on that floor.
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Over / Under An over-under is a townhouse consisting of two stacked dwellings (one over the other). These are usually two-level occupancies over one-level occupancies with entrances on opposite sides, but other floor plan variations may exist.
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Rowhouse A rowhouse is a multi-story dwelling attached to at least two other dwellings. These dwellings may or may not be separated by fire walls. Typically a rowhouse will have a common cockloft under a flat roof.
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Duplex A duplex is two dwellings under one roof sharing a common wall.
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Hybrid A hybrid is a building construction style that can be inclusive of various types of townhouse styles (piggyback, back-to-back, and over-under) under one roof.
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Box Alarm Assignment 4 Engines 2 Trucks 1 Rescue 1 EMS Unit
2 Battalion Chiefs 1 EMS Supervisor 1 Command Aide *add tanker task force for rural water ops* This may vary slightly by jurisdiction. Tanker task force is comprised of 3 tankers, 1 engine and 1 B.C.
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First Engine Park for hoseline advancement Leave room for the truck
Communicate: * On scene report * Lay out * Size Up * 360 * Situation report
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Second Engine Establish water supply Ensure first line is operational
Deploy second line
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Third Engine Position for 2nd water supply
Report visual of side Charlie if possible Check for extension into exposures Pull exposure line if needed Pull lines to side Charlie if needed Leave room for 2nd truck
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Fourth Engine Position out of the way Assume R.I.T.
Water supply for 3rd engine if needed Engine assignments may vary slightly by jurisdiction.
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First Truck - Position for rapid placement of ladders
- Anticipate use of turntable - Force entry - Primary search - Coordinated ventilation Consider scrub area when spotting turntable to maximize coverage for victim rescue.
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Second Truck Position in the rear, or opposite of the 1st truck if possible Carry out truck operations on side Charlie
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Rescue Squad Position near structure Do not block other units
Perform search and rescue functions Assist with ventilation, force entry, or ladders if needed
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EMS Unit Position near the incident
Allow for rapid egress if needed to transport First evaluate potential civilian patients Support firefighting operations (i.e. rehab) If an EMS unit is needed to transport a patient, its position must be backfilled.
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First B.C. Position out of the way
Assess the need for additional resources Obtain a situation report Assume command
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Second B.C. Position out of the way
Report to initial B.C. with full turnout gear and S.C.B.A.
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Tactics and Strategies
Sweeping eaves Soffit attack Deck fires Exterior fires Basement fires Garage fires Attic fires Wind driven fires
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Sweeping Eaves Performed prior to entry
Used to prevent extension to the attic Utilize a straight stream parallel to exterior wall Allow water to cascade down to extinguish any siding fire
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Soffit Attack Used to attain quick knockdown of attic fires
Match fire stream to angle of the roof and flow into soffit area 2 ½” Smooth bore nozzle is preferred
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Deck Fires Rapid line deployment to the deck side for extinguishment is priority Exterior attack preferred for quick knock down Sweep siding and eaves for extension After knock down enter structure to check for extension
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Exterior Fires Rapid extension potential
First line puts knock on exterior Second line goes interior After knock, first line may go interior Coordination of tactics among first arriving units is paramount
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Basement Fires Large potential for impingement on structural members
Tactics largely dependent on layout Consider controlling spread by closing stairwell door Protecting stairwell is paramount (fog stream?
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Garage Fires Rapid knockdown is key
Knock down visible fire from garage first -Then enter through interior for extension (or) Attack from the unburned side solely Beware of overhead garage door condition Beware of hazards posed by vehicle fires
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Attic Fires Fire attack will be determined by construction features and extent of fire Consider using scuttles and other access points Fog nozzles work well in these situations Distributor or cellar nozzles are also a viable option
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5 Conditions must be present:
Wind Driven Fires 5 Conditions must be present: Fire in the structure Failed or open window etc. Wind on the exterior Failed or open door to living area An exit side vent
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Wind Driven Fires Cont. Take special precautions
Consider using wind to your advantage Consider master stream devices on the upwind side of the fire room
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Summary Townhouse and rowhouses may come in a variety of construction types Situational awareness and quick decision making is paramount when fighting these fires Special consideration should be given to certain types of fires, such as attic fires
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Questions? Thank You
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References FIRE AND RESCUE DEPARTMENTS OF NORTHERN VIRGINIA FIREFIGHTING AND EMERGENCY OPERATIONS MANUAL 3rd EDITION Brannigan, Francis L. (1993). Building Construction for the Fire Service. (3rd ed.). Quincy, MA: National Fire Protection Association. Fire Department of the City of New York (n.d.). Row Frame and Brownstone Building Fires. Gaines, Glenn A. (1978). Firefighting Operations in Garden Apartments and Townhouses. Bowie, MD: Robert J. Brady Company
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