When a detection alarm is received without a corroborating civilian 911 call, an investigating response shall consist of a single engine. Despite frequent history of false reports and system failures in one form or another, a high level of awareness and readiness must be maintained during this investigation.
Crews shall be in full gear with SCBA in standby and have with them the TIC, water can or dry chemical extinguisher, and irons. The arriving engine SHALL complete a 360 size up, give a condition report upon arrival, and take Command. In many cases a 360 size up by the first arriving Engine may be impractical however, all efforts should be exhausted to obtain a visual of as much of the building as possible.
If “Nothing Showing” is observed exteriorly, the Officer and the crew will check the alarm panel and interview occupants to ascertain fire reality, severity, and/or location as per Emergency Manual C5. They will also locate the Knox box and procure the elevator key and/or master key if available. It may be in the Manager’s office or with the maintenance person.
When consulting the annunciator panel do not solely look at the alarm that is displayed, it is paramount to scroll through the past alarms using the “Alarm ACK” button. Often the first alarm location is where the fire has started. The presence of multiple alarms going off may indicate the location of a working fire or at least identify the floors that have been affected by smoke. Before committing to an area deep within a building, the annunciator panel must be consulted.
If an alarm indicated by the annunciator panel is on the 5th floor or below, the responding engine shall take the stairs. If there is no smoke on the fire floor, they will investigate further and take applicable action. If the indicated floor is above the 5th floor, firefighters may use the elevator up to two floors below the suspected fire where they will walk up to the reported fire floor, taking note of floor layout, and checking for smoke. It is imperative that the elevator is properly evaluated and placed into Phase 1/Phase 2 before ascending (see, “V. Clearing an Elevator for Use and Operations” and “Appendix 10, Elevators”). The safest method of ascending to the fire floor is to use a stair shaft that accesses the reported fire floor. When choosing to use elevators, keep in mind that when responding to high-rise commercial alarms and high-rise fires personnel shall not operate in elevator cars that cannot be placed in fire service operation.
Fire crews should pace themselves while ascending as this will be a physically demanding task. On the way to the fire floor, the officer should check several floors below the reported fire floor to familiarize the potential floor layout, fire conditions, and standpipe valve locations. The driver should remain in the lobby area to monitor the alarm panel and continue gathering information.
If smoke and/or fire are found and is beyond containment by a fire extinguisher or water can, dispatch shall be notified to send the balance of a High-rise Regular Alarm. The officer will then have the discretion, depending on the scope of the situation found, to request a High-rise 2nd Alarm. If a 2nd Alarm is called, these alarms should be separate to allow each wave to arrive naturally.
The first responding engine on scene will now become the Recon/Attack team and will identify the most advantageous stairwell to mount an attack via the most appropriate standpipe location. In the event of a true working fire, these crews must use common sense and experience to balance risk/reward in relation to life saving efforts and fire containment without the safety of hose lines.
As the balance of the High-rise regular alarm begins to arrive, the first arriving officer will implement the Incident Command System and begin assigning units to task oriented priorities. Using the information that the Recon team has gathered, the IC will direct the arriving units to the appropriate stairwell to begin connection to the standpipe system. This incident should now be run in accordance with Regular High-rise Alarm Operations.
Personnel shall not operate in elevator cars that cannot be placed in fire service operation, nor take the elevator to the floor of the reported alarm (see Memphis LODD 1994). Keep in mind elevators are subject to failure, and the safest means to the fire floor is the stairs. However, if the reported alarm is higher than 6 floors, elevators can be an efficient means of travel if properly evaluated and captured (see Appendix 10, Elevators). The hoist ways (shafts) can provide a means of extension for smoke and fire and therefore must be cleared before use. Firefighters should look up into the hoist way through the crack between the floor and elevator using a flashlight and thermal imager to verify that there is no smoke, fire, or running water in the shaft.
Elevators should not be used under the following circumstances:
Elevator use considerations:
In summary, the elevator must be properly cleared and required operational checks performed before ascending. A full discussion on the use of elevators under “Normal Conditions” and “Emergency Operations” is in Appendix 10, Elevators of this procedure.
When a detection alarm is received along with a corroborating civilian 911 call a High-rise Regular Alarm will be sent. First unit on scene SHALL obtain a 360 and give a condition report upon arrival. In many cases a 360 size up by the first arriving Engine may be impossible or impractical by themselves and will require a collective effort. The first arriving Engine should get a visual of as much of the building as possible and utilize other responding rigs to complete the 360 as they arrive.
If they observe Nothing Showing, the Officer and his crew will enter the building and determine the nature of the Incident following the guidelines laid out in “Responding to a Commercial Fire Alarm - High-rise”.
NOTHING SHOWING ON A HIGH -RISE ALARM MEANS ABSOLUTELY NOTHING.
Initially the first arriving Engine shall establish Command and will set up the incident with the following priority.
If first arriving units see any visible sign of fire or civilians at the scene report a fire, the Command Mode shall be used.
| Group | Tasks |
|---|---|
| RECON / ATTACK 1 to 2 Engine Companies 1st Rescue Squad | Check panel for fire location. Take control of elevators. Check floor below fire floor for layout. Recon for most appropriate place to take standpipe. Fire attack. |
| WATER SUPPLY 1 Engine | Stage at hydrant. Take hydrant if needed. Connect to FDC Balance of crew assigned as needed |
| LOBBY CONTROL 1 Engine | Primary Accountability. Manage elevator use. Monitor / Silence Alarm Panel Verify fire pump is operational |
| SEARCH/RESCUE 2 Engines or Engine/Rescue Squad | Search all stairwells, starting with dirty first Search common areas Search fire floor/ Apartment involved Search two floors above, two floors below, and top floor |
| TRUCKS 1st and 2nd Truck | If incident above aerial reach Supplement Support function If incident within aerial reach Consider exterior aerial use for rescue. Flying standpipe or transitional attack \\PPV of stairwells |
| RIT 2 Engines or Engine/Rescue Squad | Report to floor below fire floor. Check layout and egress Set up RIT line, connect to standpipe on floor below the attack connection |
| SUPPORT Remaining crews | Report to Command Post for assignment. Utility Evacuation |
| EMS 1 Engine with Medic Unit EMS Supervisor 122 | Report to three floors below fire floor Establish Triage / Treatment area Establish Rehab |
| COMMAND 2 Battalion Chiefs Safety Officer 134 | First arriving Chief establishes Incident Command. Second arriving Chief establishes Operations Sector 134 establishes Safety Sector and fire floor accountability |
Considerations of wind impacted fires are of critical importance in the high-rise incident. Window failures of the involved unit or units coupled with as little as a 10mph wind have been proven to have substantial impact on fire growth and extension (see Vandalia ST. NIOSH Report). Alternative tactics must be deployed when faced with window failure, heavy fire, and wind driven fire conditions.
Wind driven fires can be recognized by any of the following indications:
1. Picture frame of fire: A failed window in a wind driven fire will often appear as a “picture frame of fire” with little to no smoke or fire venting from the opening. An occasional star cluster of fire or puff of smoke may escape however, the force of the wind against the window will pressurize the opening allowing little to no escape of the products of combustion.
2. Horizontal Smoke: Smoke that is venting from the failed window will flow horizontally away from the opening instead of upward.
3. Pressurized Smoke from fire apartment, stairwell door, or hallway door: Smoke that is under pressure noted around the door frame of the involved unit or stairwell door.
When the fire is beyond the control of initial attack methods, such as a wind driven fire, the following options are available for consideration:
The Recon/Attack Group will ascend to two floors below the reported fire floor utilizing the safest and most efficient means. Upon arrival to two floors below the reported fire floor, the team should assess for suitability of a Staging area. It should be clear of smoke and an area large enough for tools, equipment and personnel that will soon occupy it.
An officer and a small group of firefighters will form the Recon element and ascend to the fire floor. The remainder of the Recon/Attack Group will prepare the initial attack line and await orders from the Recon officer.
Once the fire floor has been identified, the Recon/Attack officer will formulate a plan of attack and brief the Recon/Attack group. Three critical pieces of information must be obtained and relayed to the Incident Commander:
The Recon/Attack group will hook up the attack line on the floor below standpipe connection, charge the line, and ensure proper standpipe pressure, minimum of 65 PSI is achieved prior to entering the fire floor.
Before advancing to the fire, you should take into consideration the possibility that occupants may be in the attack stairwell. The stairwell should be checked before opening the door to prevent exposing occupants to fire or smoke. Victims are often found at the top of stair wells as they seek refuge from smoke in the closest direction of perceived safety. Once you have opened the door and taken a line in with you, the stairwell door will no longer close and the stairwell may become filled with smoke. It may be necessary to delay entry to the fire floor until the stairwell above is clear of people.
This sector is the gatekeeper of the High-rise firefighting process. It will begin small and eventually grow into its own major operation with additional crews assigned as the extended attack evolves, especially if multiple fire attack bases are in operation. While monitoring the fire attack channel and using it when necessary, Lobby may ultimately require its own radio channel to coordinate with interior and exterior staging along with Command on matters of logistics.
Lobby will coordinate arriving companies and maintain accountability for the entire structure. In order to document all who enter and all who leave, Lobby must control egress points. To do this they will require an Entry/Exit officer. It is understood this will be a daunting task at first, but as the incident progresses, it must be maintained. Firefighters need to be self-aware and check in and out without skipping this process. While accountability will be a TFRD role, Entry/Exit control can be maintained by TPD personnel. They may also assist with civilian evacuation.
Lobby may be assisted by a civilian liaison. Building maintenance and managers know their building, its layout, public address system, and civilian occupancy. They have master keys, floor plans, and information to assist us. They understand their fire suppression systems and can help the IC understand if they are functioning properly. They can contact outside entities such as HVAC operators or electricians if power outages affect fire protection systems.
Lobby will need to gain control of the building's public address system, if one exists, to communicate with the civilians still in the building. It may be used to direct them to shelter in place depending on their location, or exit by designated evacuation stairwells from the building.
Finally, Lobby will also be the initial resource area. This will be the equipment staging area that needs to be transported up to support the fire attack. A Resource officer will be assigned to account for this and coordinate its transport up to interior staging. Attention must be given, if there are multiple fire attack bases, to assure proper logistical lines. Depending upon the size and scope of the incident, a Chief officer must be considered for taking command of the Lobby operation.
In the military, an FOB is used to support tactical operations without establishing full support facilities. The heart of an FOB in the fire service application is its staging area which will support and supply an extended fire attack in the immediate fire area.
The FOB staging area should have fresh crews in place to be rotated with working crews. The objective of this is to maintain a constant application of water on the fire.
Once Recon/Attack has informed Incident Command of the lowest involved fire floor the remaining crews will populate the functions at the Forward Operating Base (FOB) prioritized by the Incident Commander to fit the situation.
According to the graph below, the highest attack floor firefighters are operating on through the staged EMS sector is the totality of the FOB. Any additional attack line in a separate stairwell shall have their own support FOB. If multiple FOB’s are required, each shall be given a unique name designation.
The 2nd arriving Chief will report to the interior staging area and after being briefed by Incident Command will supervise attack and oversee the FOB. If there is more than one FOB there shall be a Chief FOB Commander overseeing each, along with their own Staging, RIT, EMS, and Safety sectors in support of each separate attack area. If the FOB becomes too large for appropriate span of control for FOB Command, a Base Manager should be considered.
The Forward Operating Base (FOB) Graph
Immediately upon the confirmation of an extended fire attack in a High-rise fire, NFPA 1710 codifies the use of Command Aides.
The Chiefs can appoint them as they see fit by personnel available.
A Safety Officer shall be assigned per FOB. They shall function as outlined in the Emergency Procedure Manual C-58 for Incident Safety Sector Officer. For a High-rise incident, they shall have some extra responsibilities.
Safety 134 can be where they see fit within their FOB and shall consult with FOB Command. Interior Safety Officers should have another firefighter accompanying them, so they are not alone in a fire environment and assist with accountability.
RIT shall function as outlined in the Emergency Procedure Manual C-82.
If additional RIT staffing is deemed necessary they will be under the direction of the preexisting RIT officer
The EMS sector shall establish a Triage and Rehab area three floors below the fire. This sector will consist of one medic transport, one Engine, and an EMS supervisor such as 122. Extra staffing to bolster this complement is to be considered by the FOB Commander based on the demands of the incident.
The actual fire attack can begin once the line is charged and the effect of leaving the stairwell door open has been assessed. Keep the fire attack simple, apply firefighting basics to locate, confine, and extinguish the fire while maintaining orientation.
The fundamental tactical objectives are the same whether you are fighting a fire in a High-rise Office or a High-rise Residential building.
Any subsequent handlines stretched after the first may be positioned in a wide variety of locations depending on the needs and problems at a fire. At most operations, this second or Back-up line is positioned directly behind the first line in support of the Attack, following the path toward the seat of fire. The backup line is best attached and stretched from the floor below where the attack line was hooked up when the outcome of the fire is still uncertain. In an FOB, this will be the staging area floor. I.e.: If the attack line was hooked up on the 14th floor, then the backup line will be hooked up on the 13th floor. By hooking up to the floor below the attack line, we have some degree of redundancy. The downside is this requires an additional length of hose. When the fire has a more definitive outcome one can hook up the second or more lines where circumstances dictate or allow.
Circumstances will dictate specifically where the second line should be placed. In a residential high-rise with a common hallway the Back-up line should in most cases be directly behind the first attack line up to the point of entry. On the other hand, a commercial high-rise building might require something slightly different. Large open areas may require two lines to attack. If this is the case, they should be positioned in such a manner that each line could cover the other hose team if need be. With center core construction, each line may be sent in separate directions around the core, keeping in mind the potential for opposing streams when they wrap around and meet each other. Or, one line could create a static defensive position protecting the other hose crew while they roll up the fire around the core. Again, conditions will inform the tactics depending on the needs and problems of the fire.
It is imperative one or two floors above the fire floor are continually monitored for vertical fire spread and ensuring ventilation hatches in the stairwell are the way they should be.
Always keep the Incident Commander informed, especially when a sudden change of plan is needed. Concise, actionable Interior/Exterior communications will go a long way toward the interior and exterior crews helping each other coordinate the incident.
The Support group is the next wave of firefighters to support the attack as shown in the Graph on page 8. It is the balance of the 1st High-rise alarm that is not a part of the Recon/Attack Group, water supply, or Lobby along with the arriving 2nd Alarm.
Command can assign the Support Group to conduct:
Support Group must be attentive to radio traffic and have situational awareness to assist the outcome of the incident. They shall report to Lobby with their gear and check in with the Accountability officer in preparation for assignment by the IC.
Ventilation systems can be a primary concern for fire and smoke spread if not handled correctly.
Due to the concerns of wind driven fires the use of horizontal ventilation via open windows or pressurization with positive pressure fans should not be taken lightly. This must be in coordination with FOB Command and Incident Command. Premature ventilation may cause conditions on the fire floor to be detrimental to firefighting efforts.
In older buildings, horizontal ventilation can be accomplished by opening windows. This should be accomplished via the windows on the leeward side (side the wind is not coming from) first and then the windows on the windward (the side the wind is coming from) side. Any attempt at ventilation using windows should be tested one to two floors below to determine the effects of the wind.
In newer buildings, windows must be broken. If this is necessary, use an axe to glaze the window and then a pike pole to pull the glass into the building. Prior to breaking the window, personnel and bystanders must be cleared from the area below. Coordinate this with Incident Command. Once a window has been broken the options to recover the opening are limited therefore extensive coordination with command is paramount. Also, many newer commercial buildings have floor to ceiling windows. Caution must be used to mark a broken vent window to avoid a fall hazard.
The initial attack stairwell must receive positive pressure ventilation; the Truck PPV can be used to pressurize a stairwell. It must be remembered that pressurized stairways do not remove smoke from the floors or hallways. It should be enough to negate the movement of heat and smoke into the stairwell. Ideally, evacuation stairwells should be pressurized as well.
If the stairwells are contaminated, a team can be assigned to the top floor and roof area. They are to open the hatch or roof door in coordination with a fan at the base of the stairwell activated. All other doors to the stairwell shall remain closed during this smoke removal period. Opening the door at roof level of an unpressured ventilated stairwell will increase the draft of that stair shaft. It will draw the fire, heat and smoke in the direction of that stairwell. When conditions are favorable, and authorization is given to vent in this manner, this top ventilation should improve conditions on the upper floors. The roof team will confirm when the stairwell is clear and then confirm when the door or hatch is closed. The stairwell will now become pressurized.
Structures taller than 15 stories should utilize an additional fan five floors below the fire area. The fan would be in the hall or occupancy with the force of air directed into the stairwell. This will enhance the pressure throughout the height of the stairwell. (See also Appendix 12)
Salvage operations are universal. In the event of a fire in a High-rise building, salvage operations will begin on the fire floor as practically as possible. The next area will be the floor below the fire floor. Water runoff from the fire floor can be removed down an unused stairwell or possibly down elevator shafts. Tarps should be brought up to interior staging. Computers, personal items and sophisticated office equipment should be given priority in protection.
The following guidelines pertain to overhauling High-rise fires:
Communications will be problematic during a High-rise fire. In the event of an advanced fire, it may become necessary for Command to designate an officer to oversee Communications. It shall be the duty of the Communication Officer to find alternate methods of communication between on and off scene units.
Officers and crews should become familiar with the features of High-rise structures in their companies’ district. If a preplan is available for any High-rise in your first alarm district, you should become familiar with the sections that deal with standpipes, sprinkler connections, stairwell locations, mechanical equipment rooms, elevators, fire protection equipment, annunciator panels, and ventilation possibilities.
High-rise training drills should be conducted regularly to allow firefighters and command officers the opportunity to become familiar with the High-rise firefighting operations. Drills should cover these important areas: incident command, firefighting and tactics including water supply, elevator operation, large area search, evacuation and management of occupants.
We will be using 50’ lengths of 2 ½” hose.
They will be stored in a flat load configuration with three straps to hold it in place.
It is suggested they are carried over your SCBA for ascent to allow for a hands-free carry.
The High Rise hose bag will contain the following items:
Courtesy Fire Engineering
“Most standpipe systems are designed for at least 500 GPM and often 750-1,250 GPM. These volumes represent the number of hose lines that may be required to extinguish a fire in various occupancies. The largest flow designs apply to buildings that are not sprinkler protected, or where we can expect fire to quickly develop, especially in open-floor-plan office and professional occupancies. Residential occupancies generally have lower flow designs partly because of the compartmentalized design of the floors with fire resistance rated assemblies between units and the corridors. That is not meant, however, to diminish the need for reliable hose stream support when operating off a standpipe in a residential occupancy, particularly in older buildings that do not have sprinkler protection.”
As noted in Lobby Control section, the driver of 1st due engine that assumes Lobby Control should identify the churn/fire pump pressure in the pump room noting if the fire pump is running or not. If Lobby Control cannot complete this, they should designate a member to perform this task.
When observing the pressure on the fire pump controller, usually a gauge located near bottom of controller, should provide the fire pump pressure of the system. The fire pump pressure may also be identified on signs near FDC location, sign on fire pump controller, or on the stamped plate on the pump housing (churn pressure). This information must be relayed to Water Supply, so that in the event of fire pump failure, the driver knows what pressure to supply the FDC. Higher pressure systems will require Tandem Pumping to match fire pumps pressure.
Churn Pressure: is the maximum pressure a fire pump can produce when it's operating at its rated speed but not discharging water. Fire pump pressure is the pressure of the pump while it is running and flowing water through standpipe or sprinkler head activation. When checking the fire pump to verify its pressure, the churn Pressure and Fire Pump Pressure may be slightly different. Keep it simple, pump at the observed pressure at fire pump controller gauge whether the pump is running or not. This should be reported as “Fire Pump Pressure” to Water Supply.
Larger occupancies may have fire pumps that require greater operating pressure to reach remote standpipe connections. The standpipe connections closets to the fire pump often require PRD’s or PRV’s to lower the outlet pressure of the standpipe to a more manageable pressure.
Pressure Reducing Device (PRD): These devices only reduce flow pressure; they have no effect on static pressure in a system that is not flowing water. They usually consist of a reduced orifice or adjustable orifice/baffle on the discharge side of the outlet. Some of these are adjustable, and others can be disabled by a firefighter at the riser via a pin or, simply removed. Remove them when connecting if possible, so the full outlet pressure can be utilized and gated.
Pressure Reducing Valve (PRV): These devices operate by using an internal spring that is calibrated to open a restricted amount when a given pressure is applied to them. It is important for responding crews to know that systems using these devices are engineered to work correctly (correct PSI and GPM flow) only when a specific pressure is achieved throughout the system. In other words, if the correct pump operating pressure is not achieved, the proper PSI or GPM of water flow will not be achieved on any floor. This typically cannot be defeated or adjusted in the field, nor can they be used to supply the system when employing an improvised FDC (PRV’s act as a check valve when pressure is supplied backwards into the outlet).
Final thoughts
Various occupancies may be equipped with wet standpipes, dry standpipes, or automated systems that charge the standpipes through integrated alarm systems. Some systems feature standpipes only, sprinklers only, or a combination of both, which may be supplied by a dedicated fire pump or operate off the residential water supply. Fire Department Connections (FDCs) may also be designated for standpipe-only, sprinkler-only, or combination systems.
NOTE: Pre-incident planning is essential to understand these configurations before an emergency occurs
FDC (Fire Department Connection) are designed to allow an engine to supply water pressure to the building's standpipe, sprinkler system, or a combination of the two (combined standpipe/sprinkler system). A standpipe can be either wet or dry, and classified as automatic, semi-automatic, or manual, depending on how the water is supplied to the system. There are occupancies that have a fire pump, and occupancies that operate off of residential water supply. Preplanning and having the information on the MDT will be a necessity to understand our capabilities before the incident even begins.
Improvised FDC: Remote Fire Department Connections (FDCs) may be prone to failure, while wall-mounted FDCs can be obstructed or have damaged fittings. In such cases, establishing an improvised FDC can serve as an effective supplement to the standpipe system. One method involves connecting two 3” lines from an engine to the first-floor standpipe outlet using a gated “Y.” This approach is viable provided the standpipe does not incorporate a Pressure-Reducing Valve (PRV). Engine operators must identify the designed system pressure and pump as closely to it as feasible.
Improvised Standpipe: If an issue is found within the standpipe system that prohibits its use, several options are available to overcome this obstacle.
Courtesy of Chief Jerry Tracy and Asst. Chief David McGrail
“The most common framing systems used for High-Rise buildings utilize either concrete or structural steel as the basis for forming the building skeleton. Both types of construction use vertical interior and exterior columns to which the horizontal support girders are attached. The girders span the horizontal distance between the columns and are used to support structural beams. These girders and beams will in turn support the floors. Although there is a difference in the materials used for the structural elements in a reinforced concrete or steel structural frame, they perform the same function of support.
Construction designs for High-Rise buildings are usually based on the concept that structural integrity of the building must be sufficiently maintained through any potential fire. In keeping with this concept, the principal components that comprise a High-Rise structural frame are required to have a high degree of fire resistiveness. Under prolonged exposure to sufficient heat, it is possible that failure of components could occur.
The building “Skin” is considered the exterior walls and windows. In the course of construction, once the frame and floors of a structure are complete, the skin is now mounted to protect the spaces from the elements and weather. As the structure comes together it will now contain the products of combustion should a fire break out within the confines of its spaces.
The exterior walls of modern High-Rise buildings are usually lightweight, prefabricated walls. They are non-load bearing and referred to as curtain walls. A complete curtain wall consists of a panel with finished surfaces and a means of attaching it to the building frame. The most common method of attaching curtain walls to the building is by bolting them to clips that are attached to the structural frame or floor slab. This space between wall and structure is an avenue for extension.
Generally, stairwells in High-Rise buildings are usually built into the core and may be supplemented with additional stairwells on the outer perimeter of the structure, based upon the requirement setting limits for a specific distance of travel to each exit. This will vary depending on the occupancy type of the building. Stairwells and exits in High-Rise buildings are not designed to handle the total occupant load simultaneously. Additionally, the number of useable stairwells may be reduced by heat, smoke or fire department operations. This is one of the main reasons that total evacuation of building occupants during a High-Rise fire can be impractical.
There are two basic types of stairs, the return-type and scissor-type stairs. Return-type stairs entry and exit is made from roughly the same location on each floor. While scissor-type stairs consist of two separate sets of stairs, which cross each other within a common shaft. In this type of stair arrangement, the stair access point for each set of stairs in the shaft is at opposite locations on adjacent floors. Some scissor type stair arrangements will only service alternate floors with each set of stairs in the same stair shaft.
Center core building design features an office or living area surrounding a “core” containing stairwells, elevators, and utilities. The fire can wrap around the corridor and behind crews on hose lines. This situation can also occur in large open areas around the core. If the potential for this exists, operate two lines; one to attack the fire and the other to prevent the fire from wrapping around the core.
Some High-rises in Toledo have an exterior curtain wall of glass and/or aluminum. In some cases, there is a gap between the main structural frame and the exterior curtain wall which can be a path for vertical fire spread. It is this and auto-exposure, or exterior lapping of fire to the floor above, are the main means of fire extension that should concern fire forces and be scouted for early and often.
Split bank elevators are elevators where separate shafts serve differing levels of the building. One Government Center has this type of system. One services floors 3 through 13 and a separate bank services floor 14 through 22. The section from the ground floor to the 14th floor for that bank is called a blind hoist way. For example, a fire above the 16th floor would require Recon to assure the safety of its use; however, the bank that services floors 3-13 could be used to the 13th floor and then firefighters could walk the rest of the way up to staging and the fire floor.”
The IC is responsible for determining the most advantageous position for the command post. Generally, the lobby of the involved structure or a location outside of the structure is chosen. Once the command post has been designated it should be communicated to all members on scene.
Locating the command post in the lobby has advantages such as immediate access to security, management personnel, information, and the Lobby function. Radio traffic will be minimized with this location allowing the IC to focus communication with FOB Command. This is best in a smaller incident. A larger incident with crowds of staged firefighters and evacuees, communication will be made difficult due to the noise and tumult, making an interior command post a much less beneficial choice.
The exterior command post has its own advantages. This includes the ability to monitor the exterior of the building allowing continual evaluation of the fire along with interagency communication ease. It will be much easier to interact with them at a clearly marked exterior command post. When choosing an exterior location look for the most convenient, advantageous, and safe location with at least two sides of the fire building in sight.
Newer High-rise buildings are sometimes equipped with a Command Center, which is usually near the lobby. This is often the ideal command post location, as these centers often provide excellent communications, video feeds, and the needed work space for command activities
Success in clearing a building in an emergency can be expressed in two variables: the amount of time needed to evacuate and the time available to them to do so. Depending on the time of day and if the structure is a commercial or residential High-rise, evacuation could vary from a simple task to a complex and challenging situation. As soon as possible the IC must begin evaluating the needs for accomplishing evacuation.
If it is a large incident, numerous floors may have already begun self-evacuating. This may cause a mob scene of excitable people. While the Recon/Attack Group assembles to ascend, they and Lobby should be gathering information about the fires location using the resident’s knowledge of the building to direct the firefighters. Once Recon/Attack has determined an attack stairwell, it must be declared to the Incident Commander and be secured for both pressurization and ease of fire work. Ideally, this stairwell should have roof access for ventilation purposes. Lobby should then use the PA system to steer evacuees to the remaining stairwells dedicated to evacuation. An Evacuation Stairwell Team may need to be dedicated to directly manage these stairwells and the occupants within them.
Any attempt to totally evacuate one of these buildings would severely and negatively affect fire suppression operations.
Once occupants have assembled, begin to create a roster of these occupants to determine who has been accounted for. This roster should include their name, what floor they were on, and the time they arrived at the evacuation area.
The Recon/Attack group is arguably the most critical position on the high-rise structure fire. This group not only is the first to have eyes on the involved portion of the incident, they are responsible for gathering critical information that will shape the direction of the fire attack. The duties of Recon/Attack group can be simplified into four main objectives:
These four pieces of information relayed to the IC and remaining attack group members will indicate which stairwell will be best utilized for standpipe connection and subsequent hose deployment.
In order to accomplish the previously stated four objectives, Recon/Attack should consider the following strategies. When entering the fire hallway, the Recon team should stop at the hallway door and determine if it is tenable for advancement. If high heat or charged smoke is encountered, the hallway door is considered a hard stop and the Recon team should cease advancement until a charged hose line is available. If light smoke and low heat is encountered, the Recon team can advance down the hallway to attempt to locate the fire unit. Be advised that when the firefighters advanced down the hallway at the Vandalia fire, they encountered light smoke, moments later they were overcome by high heat. A water can is a means of knocking down a small fire in the incipient stage, it is by no means protection for our members advancing down a hallway. This type of fire requires intelligent firefighters making intelligent decisions while balancing risk versus reward. Keep in mind that occupants protecting in place are typically safe when in an apartment with a closed door.
When the fire unit is identified, the extent of the fire’s progression should be determined. Before forcing entry to the suspected fire apartment, it is imperative that crews force a door on the same side of the hallway as the fire unit so that if fire blows out the door and it cannot be shut, crews can evacuate to the relative safety of another apartment while awaiting rescue (area of refuge). Considering modern fire research and how flow paths can affect fire ground operations, doors should be damaged as little as possible to open the door. If the progression is beyond the capabilities of a water can the Recon team should retreat from the unit and maintain door control, in the closed position, to deter smoke and fire extension into the hallway. Door control can be achieved by attaching webbing to the door handle, effectively extending its reach. This technique enables firefighters to maintain control of the door while positioning themselves to the side, rather than standing directly in front, thereby enhancing safety during operations. The room number should be determined and relayed to the IC.
As the Recon team is returning to the attack stairwell they should make every effort to estimate the amount of hose packs that will be needed to reach the fire unit. This can be accomplished by counting the number of walking strides from the fire unit to the closest stairwell. This number, multiplied by three, added to 100’ will provide an estimation of the required packs. For example, if the fire unit is 16 strides away from the stairwell, that is approximately 48’. Add one length for the floor below stretch (50’) to the standpipe and one length for entry into the fire unit (50’), and you have 148’ equaling three hose packs. Conversely, the remaining members of the Recon/Attack group who are staged at the floor below may walk the floor below and conduct the estimation based on the room number that was ascertained by Recon.
First arriving crews must identify who needs rescue and who doesn’t. There will be those who are in critical situations needing immediate rescue and those who are not directly affected by the incident. While advancing down the hallway a primary search should be conducted of the hallway and any open doors of the fire floor. A closed door will be considered an area of refuge for the occupant and should not be opened in this phase of the operation. Utilization of the “snowplow” method for searching the fire hallway will facilitate a hasty primary search.
The following three tasks are the most important Search operations at a High-rise fire in order of importance:
Search, in any of its forms, must be based on a solid action plan that incorporates sectoring and accountability of all team members. Search teams need to have a backup rescue/removal crew in place. It must be decided, depending on the situation and goal, that if the searchers are to remove the victim or if it will be the job ancillary crew. Coordination with a hose line for protection is highly recommended.
If smoke and fire get out into the hallway we will have no choice but to try and protect the affected occupants in place until IDLH conditions have subsided or until we can access these apartments and complete a search. All efforts should be made by search crews to isolate the fire room by closing the hallway door. This operation not only buys time for the search crew and potential victims but it may prevent a blowtorch effect from overtaking the search and/or attack teams.
Ultimately, all areas of the affected fire floor will need to be searched after the fire has been contained. Forcible entry may be required. Having a master key before starting the search operation would be very helpful, but should not be counted on. If we want to maintain the ability to protect the occupants and our firefighters during search, we must be able to reclose the door behind us.
Consideration must also be given to mark already searched areas. It can be done with grease pens, paint stick markers, scene tape, an “X” in the door made with your axe, commercial door search markers or large crayons. Whatever is being used, crews should know going into the assignment what it is and have the ability to create the marks themselves.
With High-rises, Low Rises and large Commercial structures, Search should have an added third phase. We are all familiar with the Primary Search, a quick and thorough as possible search during initial fire conditions, and the Secondary Search, a slower more deliberate search as fire conditions have improved. In these cases, a Final Search is needed. This Final Search is a redundancy that should be conducted as a Secondary Search after the incident is well in hand. It assures that absolutely no occupants have been left unaccounted for and a final confirmation of no hidden fire anywhere in the building.
All areas of the structure affected by the incident should be thoroughly inspected using the CGM prior to allowing residents to reoccupy their dwellings. Particular attention should be given to the fire floor, the two floors above it, and the top floor. This is especially critical if positive pressure fans were used within the interior during operations.
The TFRD shall not use elevators that are not equipped with Fire Service functions, freight elevators, or those not secured by TFRD personnel during a potential fire incident (such as commercial fire alarms or high-rise emergencies). Personnel must utilize elevator keys, ensure proper evaluation, utilize Phase 1/Phase 2, and perform operational checks before ascending.
Ensuring a proper evaluation requires checking the hoist way for smoke, water, or fire using a flashlight and Thermal Imager looking above and below through space between the car into the hoist way. Operational checks will be discussed further below in “Phase 2 Car Capture”.
Fire Service is specifically designed to provide a level of safety that cannot be achieved through other service modes, such as Automatic or Independent. It requires two distinct phases which firefighters must fully understand and implement to ensure safe and proper elevator use. It is important to note that elevators are subject to mechanical failure, and the safest means of ascent is using stairwells. There have been NIOSH Line-of-Duty Deaths (LODDs) associated with improper elevator use, such as the incident in Memphis in 1994. Therefore, elevators must always be in Fire Service mode, and it is crucial to avoid ascending to the floor of origin.
Phase 1 Fire Service is activated when elevators bypass all floor calls and are immediately recalled to the lobby. Upon arrival at the lobby, the doors will open, and power will be automatically shut off. There are two ways to achieve this phase: automatically or manually.
The building’s fire alarm system may trigger automatic recall. When the alarm is activated, elevators are automatically recalled to the lobby. If the alarm detects smoke in the elevator lobby, some systems may implement a secondary plan, recalling the elevator to the next highest floor. Not all buildings are equipped with this feature, so crews should not assume that a fire is absent if the elevators are not recalled upon arrival. For example, in buildings like One Government Center, where certain elevators do not serve all floors, it is possible that not all elevators will be recalled. If elevators are not automatically recalled during a Commercial Fire Alarm (CFA), crews must initiate a Manual Recall.
Manual Recall is initiated by firefighters by placing the fire service key into the switch IN THE ELEVATOR LOBBY and turning it to the “ON” position. At this point, all elevators in that bank will recall.
It is imperative once elevators have been recalled during a High-rise fire to account for all of them and verify they are void of occupants.
To initiate Phase 2 Fire Service, the elevators must first be placed into Phase 1 Fire Service, either automatically or manually. It is recommended to turn the lobby switch to the “ON” position, even if the elevators have been automatically recalled. Additionally, it is critical to conduct a visual inspection of the elevator shaft using a flashlight, checking both above and below the car for any signs of fire, smoke, or water. This visual check should be repeated frequently during extended incidents.
To fully engage Phase 2 Fire Service, the firefighter must enter the elevator car and insert the key into the fire service switch inside the car. This switch may be a 2-position or 3-position switch, depending on the system.
To “capture” a car, the firefighter will turn the key to “ON.” At this point, the firefighter must perform the following operational checks to ensure the elevator responds appropriately:
The car has now been tested, and can be used for deployment, but keep in mind elevators are subject to failure.
Upon arrival at the requested floor, the elevator will stop but the doors will not open unless the operator pushes AND HOLDS the “DOOR OPEN” button until the doors are completely open. The doors will not remain open until they are fully opened to ensure protection of crews if the elevator has stopped on a floor that has fire or smoke present.
To send the elevator car back to the recall lobby, crews should turn the fire service key to “OFF.” It is important to note that this function will only work properly if the doors are completely open and stay open.
CAUTION: If the key is turned to the “OFF” position before the doors are completely open and crews exit, the elevator could be rendered inoperable and will require an elevator mechanic to put it back in service.
NOTE: If at any time the “Fire Service,” “Maltese Cross” or “Fire Helmet” indicator light is flashing, you need to exit the elevator as expediently as possible. This is a warning that smoke, fire and/or water has been detected in the elevator hoist way or machine room and the elevator will very soon shut down.
Where only one elevator in the bank is captured by TFRD crews, can be advantageous during EMS runs. This ensures a timely response for the Medic Unit or prevents delays when transporting a patient.
Considerations of wind impacted fires are of critical importance in the high-rise incident. Window failures of the involved unit or units coupled with as little as a 10mph wind have been proven to have substantial impact on fire growth and extension (see Vandalia ST. NIOSH Report). Alternative tactics must be deployed when faced with window failure, heavy fire, and wind driven fire conditions.
Wind driven fires can be recognized by any of the following indications:
When the fire is beyond the control of initial attack methods, such as a wind driven fire, the following options are available for consideration:
Use of Trucks shall be based upon incident need:
Pressurization of Stairwells
Ground Level Fans
The ground level fan should be placed near the doorway closest to the base of the stairwell. If the stairs do not exit to the exterior of the building, then propping of the lobby door is required to provide make-up air. Fans placed outside lobby doors will be least effective but remain an option based on circumstances.
Fans placed inside the building should be set back and angled the same as they would be for an exterior doorway. Fans on upper floors should be placed in the hallway or occupancy with the air flow directed back into the stairs. Fans placed directly in the stairwell are less effective and generate higher levels of CO. Fans placed on upper floors do not require make-up air.
CO can be a concern, but the risk should be compared to the risk created by the conditions in the stairwell.
The use of gas-powered fans inside of the building is acceptable, and will be more effective at generating the required pressure to protect stairways. CO monitoring should be conducted. Electric fans remain a viable option for interior fan placement, keeping in mind the volume and pressure generated by electric fans will be measurably less than the gas counterpart.
Clearing of a stairwell can be achieved by beginning pressurization and then opening a topside vent or hatch to exhaust the smoke. Once cleared, the vent or hatch should be closed and kept closed. If this is performed during a fire attack, use smaller opening for a topside vent to maintain stairwell pressurization. Pressurize both stairwells with the attack stairwell taking priority.
Stairwell doors, except for where a fan is placed, should be opened only enough to allow for advancement of the hose line. Avoid propping open doors to the fire floor, floor below, etc..
This document produced by the High Rise Committee:
Additional thanks for proofing, suggestions and editing help to BC Bryce Blair, Capt. Mike Posadny, Capt. Mike Mowka and Ret. DC Ken Pauken.
Spring 2025 revisions thanks to:
References:
Along with the dedication, experience and enthusiasm of the above and untold multiples of industry specific websites and articles; the following texts were used as our main research.
Averill, J. (2013). High Rise Fireground Field Experiments. National Institute of Standards and Technology.
Bush, R. (1996). Operational Considerations for Highrise Firefighting. Emmitsburg: FEMA.
Coleman, J. High Rise Fire Procedures. TFRD
Hall, J. (2013). High Rise Building Fires. Quincy, MA: National Fire Protection Association.
McGrail, D. (2007). Firefighting Operations in High Rise and Standpipe-Equipped Buildings. Tulsa: PennWell.
Routley, J. G. (February 1991). Highrise Office Building Fire One Meridian Plaza. Philidelphia: FEMA.
Sexton, R. (2006). Incident Command at Highrise Operations. Washington DC: US Department of Homeland Security.
Smith, J. P. (2008). Strategic and Tactical Considerations on the Fireground, 2nd ed. Upper Saddle River: Pearson.
Sunder, S. (2005). Final Report on the World Trade Center Towers. US Government Printing Office. Washington DC.
Tracy, J. The High Rise Hand Book. FDNY
Various. (2002). NFPA 1710 Standard on Fire Department Deployment and Operations. National Fire Protection Association.