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Predicated Building Performance

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6When we look at various buildings and occupancies, past operational experiences; those that were successful, and those that were not, give us experiences that define and determine how we access, react and expect similar structures and occupancies to perform at a given alarm in the future. Naturalistic (or recognition-primed) decision-making forms much of this basis.

We predicate certain expectations that fire will travel in a defined (predictable) manner that fire will hold within a room and compartment for a given duration of time, that the fire load and related fire flows required will be appropriate for an expected size and severity of fire encountered within a given building, occupancy, structural system. That may be true for conventional or legacy structures, but what about modern construction and engineered structural systems? Same expectations?…….

What do you think?

There’s a great series of photos depicting initial operations at a small-sized (square foot) single family residential occupancy fire that captures fire and smoke behavior, HERE and HERE

Take at look the at this residential fire and interior attack that injured a number of Maryland Firefighters HERE

Take a moment to look back at an incident: On December 18, 1998, Three FDNY Firefighters died in-the line of duty while conducting suppression and rescue operations at fire on the tenth floor of 10-story high-rise apartment building for the elderly. This wind-driven fire event and the lessons-learned contributed directly to the current body of research and new insights on emerging strategies and tactics. NIOSH Report HERE. NIST References HERE

Take the time to remember FDNY Lt. Joseph Cavaleiri, FF Christopher Bopp and Firefighter James Bohan from Ladder 170

Stop the Entertainment

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3183630397_6104ecd8cd_bWhen we focus our attention on Building Construction, Command Risk Management and Firefighter Safety and the essence of combat structural fires; Structural firefighting is what it’s all about, is it not? The fundamental nature and reason we have such veneration for firefighting and the fire service and all it entails, has a lot to do with going into burning buildings and fighting fire.

We enjoy it tremendously; we have fun at, because of who we are and what we do-as firefighters. It’s the job and it’s a calling. Firefighting; It’s not something you do, it’s something you are. But firefighting has its adverse consequences, with all too familiar costs, in the form of injuries, debilitating accidents and line of duty deaths.

As a firefighter; to say that we love firefighting would be an understatement, BUT one issue that we need to address is the fact that there are many individual firefighters, companies and organizations that employ fireground operational practices that promote the “enjoyment and entertainment” of working a good job within the occupancy compartment of a structural fire in the building environment.

Today’s incident scene and structural fires are unlike those in past decades and will continue to challenge us operationally when confronted with structural fire engagement and combat operations. Operationally, we need to be doing the right thing, for the right reason in the right place to increase our safety and incident survivability. We also can share the belief and understanding that we at times may have found ourselves staying too long in the wrong place, operating tactically in an adverse environment with known hazards that do not have value, for nothing other than the enjoyment of nozzle and operating time in the fire. We have a tendency when working a room and contents, compartment fire or a structural fire in the building environment placing operating companies and personnel in high hazard environments- sometimes at the expense of justifying our own entertainment value in working the job, the assignment or in maintaining the interior operational interface. Think about it.

We need to stop “entertaining” ourselves. Don’t mistake determined, effective and proactive firefighting with that of reckless, baseless and risk-preferring and self-indulging firefighting. There is a difference. The job is dangerous, it has risks, we are not invincible, and we can die; at any alarm, in any fire, at anytime for any number of reasons…..Let me leave you with some new thoughts and concepts related to operational safety and the definitions that I’ve come to develop that may support apparent or contributing causes to many of the fire service’s undesired events or incidents. Think about the definitions; think about how they apply to you, your personel, your company or your operations; past, present or future. More importantly, think about when and where you’ve found yourself doing any one of these….could the outcome have been different?

TACTICAL AMUSEMENT  “tak-ti-kəl ə- myüz-mənt”

1: of or relating to structural fireground tactics: as a (1) a means of amusing or entertaining during fire suppression, support tasks or operations that places personnel at risk

2: the condition of being amused while engaging in fire suppression, support tasks or operations that places personnel at risk

3: pleasurable diversion while engaging in fire suppression, support tasks or operations: entertainment; that places personnel at risk
 
TACTICAL DIVERSION  “tak-ti-kəl də- vər-zhən”

1: the reckless act or an instance of diverting from an assignment, task, operation or activity while engaging in fire suppression, support tasks or operation for the sake of amusing or entertainment; that places personnel at risk

2: the reckless act of self determined task operations that diverts or amuses from defined risk assessment and incident action plans; that places personnel at risk
 
TACTICAL CIRCUMVENTION  “tak-ti-kəl sər-kəm- ven(t)-shən”

1: to deliberately manage to get around especially by ingenuity or approach that diverts for the purpose of amusing; assignment, operations or tasks that countermand or disregard defined risk assessment and incident action plans; that places personnel at risk

Effective Battle Plans & Performance

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The following are quotes from Fire Chief Anthony Aiellos (ret) Hackensack (NJ) Fire Department, Fire Chief during the Hackensack Ford Fire, July, 1988…

“If you don’t fully understand how a building truly performs or reacts under fire conditions and the variables that can influence its stability and degradation, movement of fire and products of combustion and the resource requirements for fire suppression in terms of staffing, apparatus and required fire flows, then you will be functioning and operating in a reactionary manner.”

“This places higher risk to your personnel and lessens the likelihood for effective, efficient and safe operations. You’re just not doing your job effectively and you’re at RISK. These risks can equate into insurmountable operational challenges and could lead to adverse incident outcomes. Someone could get hurt, someone could die, it’s that simple, it’s that obvious.”

Risk Based Response Assignments
The buildings, structures and occupancies that comprise typical response districts pose unique and consistent challenges during structural fire attack. The variety of occupancies and building characteristics establish varying degrees of risk potential, with defined and recognizable strategic and tactical measures to be taken-sometimes uniquely to each occupancy type. Although each occupancy type presents variables that dictate how a particular incident is handled, most company operations evolve from basic principles rooted in past performance and operations at similar structures. This is based on what I define as; “predictability of performance.”

When we look at various buildings and occupancies, past operational experiences; those that were successful, and those that were not, give us experiences that define and determine how we access, react and expect similar structures and occupancies to perform at a given alarm in the future. Naturalistic (or recognition-primed) decision-making forms much of this basis. We predicate certain expectations that fire will travel in a defined (predictable) manner that fire will hold within a room and compartment for a given duration of time, that the fire load and related fire flows required will be appropriate for an expected size and severity of fire encountered within a given building, occupancy, structural system.

We used to know with a measured degree of predictability, how our buildings would perform, react and fail under most fire conditions. This is what our years of fireground experience provided us, and how we ultimately would predict, assess, plan and implement our incident action plans and ultimately deploy our companies-based upon the predictable performance expected. Conventional Construction Structures (CCS) had this “predictably of performance.” You know, that typical residential structure, the 2-1/2 story wood frame, the three story brick and joist type III occupancy, the four story frame multiple occupancy, etc., etc.

Unlike Engineered System Structures (ESS) whose predictability is rooted in the fact that they are unpredictable.The emerging fire service issues affecting buildings, occupancies and structural systems related to ESS is only beginning to take hold a prominent role and level of significance that is long overdue. The fire service has been dealing with the operational issues and line-of-duty deaths related to ESS since the 1980s and now in 2009, we’re finally raising these ESS issues to a dialog point that is influencing firefighter safety, survival and operations. ( Refer to the Underwriters Laboratory’s (UL) UL University on-line training module for a state-of-the art presentation on Structural Stability of Engineered Lumber in Fire Conditions and performance results that correlate towards redefining fire suppression operations)

The fire service is beginning to fully recognize the merits in adjusting, altering, and changing our strategic and tactical ways of doing business in the streets. It’s becoming self evident in the fire service that it’s no longer acceptable to think that ESS buildings and occupancies will perform in the same manner as CCS buildings and occupancies and that tactics deployed in both CCS and ESS buildings and occupancies will react under similar strategic and tactical plans and tasks. These unique and inherent factors within the ESS profiles must give us a new standard for operational deployment; strategies and tactics that are defined by the risk profile of the building, its engineered structural systems, materials and methods of construction and the fire loading present.

Considerations for changing fire flow rates, the sizing of hose line and the adequacies for fire flow demand and application rates, staffing needs for safe operations, considerations for defensive positioning and defensive operating postures must be considered, and it warrants repeating again; Reckless-Aggressive firefighting must be redefined in the built environment and associated with goal oriented tactical operations that are defined by risk assessed and analyzed tasks that are executed under battle plans that promote the best in safety practices and survivability within know hostile structural fire environment- with determined, effective and proactive firefighting.

The Wrong Dragon…..just look over your shoulder

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I’ve commented with more than a few postings on the issues related to engineer building construction components and assemblies. I posed some questions related to Engineered Structural Assemblies & Systems (ESS) and asked if you knew what they represent and how these components, assemblies and systems may affect or influence incident operations.

I also presented some information on the pioneering efforts and quantitative results of the Underwriters Laboratory (UL) engineers and fire service representatives from the Chicago Fire Department, HERE and HERE.

If you’ve spent any amount of time reading through the NIOSH Fire Fighter Fatality Investigation and Prevention Program, LODD Reports or have invested time and effort to look through the data base of near miss reports and ROTW at the National Firefighter Near-Miss Reporting System, you’d recognize the magnitude of the issues and multi-faceted challenges confronting the U.S. Fire Services in the areas of engineered structural assemblies, components and building features.

Paul Comb’s editorial image provides a poignant and distressing reality that the fire service needs to come to terms with, addressing and implementing the necessary components that assimilating refined combat firefighting techniques and methodologies; that align with the risks and hazards presented by current and emerging construction techniques, materials and consumer lifestyles that comprise our buildings and occupancies. We need to start looking over our shoulders; we need redefined strategies and tactics for today’s buildings and occupancies. When we do have the opportunity to engage in firefighting with the dragon; we may not recognize the dragon has changed, it has evolved. Yet we stand poised to engage or take-on the dragon with faulted incident operations, strategic plans and tactical intentions that provide less than adequate results.

In those situations where we are deficient or we achieved less than expected results, we continue to miss the apparent or root causes and fall back on perceived notions and excuses. Building Knowledge = Firefighter Safety; Understanding today’s building construction, fire dynamics, fire loading and behaviors and instituting appropriate firefighting methodologies, we can achieve safe and successful fireground operations. Remember, the Predictability of Performance and the combat firefighting based upon Occupancy Risk not Occupany Type.

Have you and your company, battalion or department discussed limiting factors, enhanced firefighting tactics or operational experiences related to engineered systems, past fires, observed new construction or renovations and what it all means to your assigned duties or company assignments?

Are you and your company adequately trained to address “modern” construction, occupancies and conditions or is a much bigger dragon lurking in the shadows?

Solar Shingles and Conventional Asphalt Shingles

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With continued emphasis on alternative energy systems and applications, the newest feature to hit the American market place is thin film amorphous solar products. These products are individual solar panels that look like standard shingles, but are actually solar cell panels that can produce electricity. A recent posting from Firegeezer brought these units to the fire service attention.

UniSolarUnited Solar Ovonic LLC is the world’s largest manufacturer of thin film amorphous solar products. In plain English, Uni-Solar makes roofing shingles that look like standard shingles, but that are actually individual solar panels. When installed, you can network these shingles together to generate electricity to power a house or other occupancy setting. These shingles do not require support structures and are installed like conventional asphalt shingles to blend with existing shingles when installed.

The Dow Chemical Company announced on October 5, 2009 its line of DOW™ POWERHOUSE™ Solar Shingle, revolutionary photovoltaic solar panels in the form of solar shingles that can be integrated into rooftops with standard asphalt shingle materials. The solar shingle systems are expected to be available in limited quantities by mid-2010 and projected to be more widely available in 2011, putting the power of solar electricity generation directly and conveniently in the hands of homeowners.

Groundbreaking technology from Dow Solar Solutions (DSS) integrates low-cost, thin-film CIGS photovoltaic cells into a proprietary roofing shingle design, which represents a multi-functional solar energy generating roofing product. The innovative product design reduces installation costs because the conventional roofing shingles and solar generating shingles are installed simultaneously by roofing contractors. DSS expects an enthusiastic response from roofing contractors since no specialized skills or knowledge of solar array installations are required.

A little research reveals a number of similar products making their way into the market place and in a variety of applications. As with any building and occupancy, stay alert to building and architectural features that “look” different or don’t appear to be conventional in what you may have experienced prior. Although there is little fire service experience to draw from in these particular applications, operational issues related to roof area footing, ladder placement and integrity, penetration and cutting factors related to tactical assignments on roof decks all present additional situational awareness and hazard assessment when confronted with these or similar features during incident operations.

Stay alert and make sure you get out in the street and examine construction sites for potential installations as well as individual residential or commercial renovations that may have retrofitting installations on roof systems by adding these solar shingle systems in these challenging economic times.

Here’s a few additional sites to check into:

Tactical Renaissance

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My most recent post that stated and advocated that fire suppression tactics must be adjusted for the rapidly changing methods and materials impacting all forms of building construction, occupancies and structures. The need to redefine the art and science of firefighting is nearly upon us. HERE

A common theme has been evident here at FRI in Dallas related towards the continued identified need for the fire service to begin what I call a Tactical Renaissance. I discussed what defines and identifies the attributes and suggested what needs to be instituted earlier in the week at FRI.

One thing is not only clearly self-evident throughout common themes this past week, but also resonates through direct discussions with various Executive Chief Officers, Field Operations Commanding Officers and Training Officers. They all agree that the fire service needs to do something-and soon in redefining our strategies, tactics and way we are doing business in the streets. “The times they are a changin….”
What do you think?

Remembrance: Deutsche Bank Fire FDNY LODD- August 18, 2007

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Remembrance: Deutsche Bank Fire and Double FDNY LODD in lower Manhattan, NYC- August 18, 2007
Structural Anatomy; Operational Safety at Deconstruction & Demolition Sites
Fire operations for structures undergoing construction, alterations, deconstruction, demolition and renovations present significant risks and danger to operating personnel. This reality was clearly validated when two FDNY firefighters died in the line-of-duty during a seven-alarm fire that tore through the abandoned Deutsche Bank skyscraper in lower Manhattan, next to ground zero in New York City on Saturday August 18, 2007.The Deutsche Bank Building located at 130 Liberty Street adjacent to the quarters of FDNY Engine 10, Ladder 10, was once a 40-story high-rise structure that had been systematically reduced to 26-stories at the time of the fire. Significant building contamination from numerous toxic substances that included asbestos and lead resulting from the destruction of the World Trade Center during the September 11th attacks required the deliberate floor-by-floor dismantling effort as part of the deconstruction process that would ultimately remove the building from its present site.
The two FDNY firefighter fatalities were Fr. Joseph Graffagnino, an eight year veteran and Fr. Robert Beddia a twenty-three year veteran, both assigned to Engine 24 and Ladder 5 in SoHo. The seven alarm fire was being worked with a contingent of over 275 firefighters when the pair became trapped on the 14th floor of the building after being overcome by blinding concentrations of dense smoke after their air supply was depleted during the course of combat fire suppression operations.
Its these types of unique and dangerous elements confronting incident commanders, company officers and operating forces that demands a clear understanding that fire suppression operations in buildings during construction, alterations, deconstruction, demolition and renovations present significant risks and consequences that require a methodical and conservative approach towards incident stabilization and mitigation.
You cannot implement conventional tactical operations in these structures. Doing so jeopardizes all operating personnel and creates unbalanced risk management profiles that are typically not favorable to the safety and wellbeing of firefighters.
For more information on Operational Safety at Deconstruction & Demolition Sites, go HERE and HERE
Operational Safety at Deconstruction & Demolition Sites Power Point program download, HERE

Structural Stability of Engineered Systems: What do you really know?

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I recently posed some questions related to Engineered Structural Assemblies & Systems (ESS) and asked if you knew what they represent and how these components, assemblies and systems may affect or influence incident operations. In addition, I asked you to do some research and check the terms that were presented for starters. OK, its examination day…Did anyone do any basis research yet? Did you ID the terms? (…I can hear those crickets chirping).

In preparation for a program presentation at IAFC FRI in Dallas the end of this month on Building Construction, specifically aimed for Command and Company Officers, it occurred to me that many personnel have not taken advantage of an exceptional resource tool available to them (FREE) thru the Underwriters Laboratory (UL) Online University (HERE), where they offer over 1500 courses, many of which have direct interest to the Fire Service.One program of note is the Structural Stability of Engineered Lumber in Fire Conditions, online CBT.

This two-hour presentation summarizes a research study on the hazards posed to firefighters by the use of lightweight construction and engineered lumber in floor and roof designs. The program provides comparative test results related to legacy (conventional) versus modern engineered construction systems. The operative insights that I want to draw your attention to are the opportunities to gain mission critical insights on time to collapse timelines, as well as operational limitations and readings related to thermal imaging devices while working above fire involved floor or roof areas.

Pay particular attention to the time-to-collapse sequences and times; consider these in you IAP and tactical deployment. The tests also provides indicators that floor or roof assembly deflection (give or bounce), which has been a universal tactic as an possible indication of imminent collapse, may actually not be a reliable indicator, with some floor assembly tests having a deflection of less than 3/4” immediately before structural failure. Add to this carpeting or lightweight concrete coatings, top-side surface temperature (TIC readings) may change little even as the structural integrity of the support system is rapidly diminished below.

You do not have the buffer of allotted operational time that you might have presumed. These faulted assumptions may have catastrophic consequences. In my lecture series Buildingsonfire: Engineered Structural Systems & Fireground Operations, as I’ve traveled around the country presenting these programs, common themes prevail from coast to coast; the fire service assumes it has more operational time than is actually present before a collapse will occur, that the collapse will be isolated and survivable, that RIT will prevail in a successful outcome and that there is an inadequate knowledge base of understanding of ESS, legacy/conventional construction and the relationships of command risk managment and tactical operations by commanding officers.

I would encourage you to invest some time in taking this program and gaining a fresh view of Engineered Structural Assemblies & Systems (ESS) and how these emerging test results and data may influence your field operations the next time you’re in the street confronted with fire suppression operations in an occupancy with suspected or known ESS.For those of you attending the IAFC FRI in Dallas, here are a couple of programs worth looking at (there are many more..), HERE, HERE, HERE, HERE and HERE.

Remember, Building Knowledge = Firefighter Safety.

Positive Pressure Ventilation (PPV) Tactics

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Positive Pressure Ventilation (PPV) Tactics
Improving firefighter safety is an ongoing effort for the fire service. A series of fire experiments were conducted by the National Institute of Standards and Technology’s (NIST) Building and Fire Research Laboratory to better understand the effectiveness of using fans at different locations to reduce the temperature in stairwells, corridors, room of origin, etc.

The tests were not limited to a single-family home, but high-rise buildings of different heights were also investigated. All of the fire tests, videos, and technical reports are compiled on a DVD entitled, Positive Pressure Ventilation Research: Videos and Reports, by Stephen Kerber and Daniel Madrzykowski (April 2008).

The DVD contains two discs. Disc one contains six complete reports on Positive Pressure Ventilation (PPV), covering PPV characteristics using Computation Fluid Dynamics (CFD) and in several different fire test configurations: Room fire, firefighter training building, high-rise pressure experiments, and high-rise fire experiments. Another report evaluates the ability of the Fire Dynamics Simulator (FDS) to simulate PPV in the laboratory and in regular environments.

Disc 1 also has a narrated video presentation: Overview of NIST Positive Pressure Ventilation Research, experiment videos from the apartments on the 3rd and 10th floors, as well as full versions of all the reports. Disk 2 has additional experimental videos from the apartments on the10th and 15th floors.

NIST received support for this work from the U. S. Fire Administration/Department of Homeland Security (USFA/DHS), and fire departments across the United States. NIST has taken engineering principles and applied them to fire service PPV tactics so that firefighter safety may be improved.

To obtain a copy of the DVD set, contact Dan Madrzykowski via e-mail (madrzy@nist.gov)
providing your name and complete mailing address. More information on NIST’s PPV research is available online at: http://www.fire.gov/PPV/index.htm.

The NEW Lexicon and Challenges

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Engineered Structural Assemblies & Systems (ESS)

· THE Predominate Fire Service Challenge….The NEW Lexicon to add to your operational safety vocabulary and incident action plans…

  • · Do you know what they represent and how these components, assemblies and systems may affect or influence incident operations?
  • · Do some research and check these terms out for starters. We’ll talk more about these components and assemblies in the near future. So get busy on your down time today…
  • It’s a Lot More than just talking about “Light Weight” Construction….

  • From Plywood-CDX….to…
  • Particle Board- PB
  • Orient Strand Board-OSB
  • Structural Composite Lumber- SCL
  • Laminate Strand Lumber- LSL
  • Laminate Veneer Lumber-LVL
  • Structural Insulated Panels-SIP
  • Parallel Strand Lumber-PSL
  • Machine Stress Rated Lumber- MSR
  • Medium Density Fiberboard-MDF and MDL (Lumber)
  • Finger Jointed Lumber-FJL
  • Adhesives…

Take a look at an informative posting over at the Firegeezer, HERE. He has some great contributed information and manufacturer “insights” on the subject engineered wood I-joists and beams and firefighter safety. There are some interesting statistical extrapolations, correlations and conveniences’ that attempt to make the case. But then again, You be the judge. Take at look at the presentation developed by the American Forest and Paper Association, HERE and HERE. This material has been out for a while and is now, just getting more exposure and distribution. Take the time to review the NIOSH reports for mission critical lessons-learned and risk reduction strategies and insights. Think about what your tactical needs are and how they align with the risk of the structure and occupancy.

We’ll have some more detailed follow-up on engineered systems information here at Taking it to the Streets.

Remember, Building Knowledge = Firefighter Safety (Bk-F2S)

Don’t forget to check out the free online training program on Structural Stability of Engineered Lumber in Fire Conditions at the UL University HERE

Other Important Reference links:

  • NIOSH Publication No. 2009-114: Preventing Deaths and Injuries of Fire Fighters Working Above Fire-Damaged Floors HERE
  • NIOSH Publication No. 2005-132: Preventing Injuries and Deaths of Fire Fighters Due to Truss System Failures HERE
  • Volunteer Deputy Fire Chief Dies after Falling Through Floor Hole in Residential Structure during Fire Attack—Indiana, HERE
  • First-floor collapse during residential basement fire claims the life of two fire fighters (career and volunteer) and injures a career fire fighter captain – New York, Report HERE
  • Career Fire Fighter Dies After Falling Through the Floor Fighting a Structure Fire at a Local Residence – Ohio, HERE
  • Colerain Township, Ohio Double LODD Preliminary Report, HERE /li>
  • NFPA Report on Light Weight Construction, HERE

Risk-Preferring and Self-Indulging Firefighting

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I had the privilege to spend some time recently with a tremendous group of knowledgeable and dedicated command and company officers at the 2009 Arizona Fire Service Leadership Conference hosted by the Arizona Fire Chief’s Association in Glendale, Arizona. Chief Ron Dennis, the Executive Director of the AFCA did a wonderful job of planning and facilitating a rich and rewarding program of presentations by some of the fire service’s foremost leaders that included Chief Charlie Dickinson, Deputy Administrator, USFA, (ret), Chief Dennis Rubin, Chief Jeff Johnson, Chief Alan Brunacini (ret), Chief Rich Marinucci, Chief Greg Cade (ret), Howard Cross, Chief Kevin Brame and Chief Bill Jenaway to name a few.

I had the opportunity to present a though provoking program addressing current trends in Building Construction, and the impact and influence on Command Risk Management and Firefighter Safety. An interesting discussion prevailed during one segment of the presentation that I’d like to share with you. While on shift today or at the station this evening or during the week, think about the following and where and how you fit into the big scheme of things. Explore and discuss the ramifications of risk-preferring and self-indulging firefighting. There’s more here than meet’s the eye, IF you look hard enough.

Risk-Preferring and Self-indulging Firefighting
Don’t mistake determined, effective and proactive firefighting with that of reckless, baseless and risk-preferring and self-indulging firefighting. There is a difference, a big difference! When we address relationships of Building Construction, Command Risk Management and FireFighter Safety with the occupancy and structural environment, all personnel, regardless of rank, need to equate the occupancy risk with strategic and tactical incident action plans.These safely compliment the identified firefighting operation risk, with the projected building risk profile and interface appropriate behavioral characteristics in the task level firefighting activities. Again, equating building, occupancy risk profiles with determined, effective and proactive firefighting.

The traditional attitudes and beliefs of equating aggressive firefighting operations in all occupancy types coupled with the correlating, established and pragmatic operational strategies and tactics MUST not only be questioned, they need to be adjusted and modified; risk assessment, risk-benefit analysis, safety and survivability profiling, operational value and firefighter injury and LODD reduction must be further institutionalized to become a recognized part of modern firefighting operations.

Risk-Preferring and Self-Indulging Firefighting It’s no longer just brute force and sheer physical determination that define structural fire suppression operations. Aggressive firefighting must be redefined and aligned to the built environment and associated with goal oriented tactical operations that are defined by risk assessed and analyzed tasks that are executed under battle plans that promote the best in safety practices and survivability within know hostile structural fire environments. Consider the following definitions as they relate to defining structural combat fire suppression operations.

Aggressive and Measured Approach
Aggressive: Assertive, bold, and energetic, forceful, determined, confident, marked by driving forceful energy or initiative, marked by combative readiness, assured, direct, dominate…

Measured: Calculated; deliberate, careful; restrained, think, considered, confident, alternatives, reasoned actions, in control, self assured, calm…

You be the judge as to what should be appropriately defining interior fire suppression operations.

It’s all about understanding the building-occupancy relationships and integrating; construction, occupancies, fire dynamics and fire behavior, risk, analysis, the art and science of firefighting, safety conscious work environment concepts and effective and well-informed incident command management. This is what it’s going to take to truly provide a means for “everyone to go home”. It’s Occupancy Risk not Occupancy Type. Many of today’s incident commanders, company officers and firefighters lack the clarity of understanding and comprehension that correlate to the inherent characteristics of today’s buildings, construction and occupancies. We assume that the routiness of our operations and incident responses equates with predictability and diminished risk to our firefighting personnel.

Firefighting and the Built Environment

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If you don’t fully understand how a building truly performs or reacts under fire conditions and the variables that can influence its stability and degradation, movement of fire and products of combustion and the resource requirements for fire suppression in terms of staffing, apparatus and required fire flows, then you will be functioning and operating in a reactionary manner.

This places higher risk to your personnel and lessens the likelihood for effective, efficient and safe operations. You’re just not doing your job effectively and you’re at RISK. These risks can equate into insurmountable operational challenges and could lead to adverse incident outcomes. Someone could get hurt, someone could die, it’s that simple, it’s that obvious.

Risk-preferring and self-indulging firefighting
Don’t mistake determined, effective and proactive firefighting with that of reckless, baseless and risk-preferring and self-indulging firefighting. There is a difference, a big difference! When we address relationships of Building Construction, Command Risk Management and FireFighter Safety with the occupancy and structural environment, all personnel, regardless of rank, need to equate the occupancy risk with strategic and tactical incident action plans. These safely compliment the identified firefighting operation risk, with the projected building risk profile and interface appropriate behavioral characteristics in the task level firefighting activities. Again, equating building, occupancy risk profiles with determined, effective and proactive firefighting.

The traditional attitudes and beliefs of equating aggressive firefighting operations in all occupancy types coupled with the correlating, established and pragmatic operational strategies and tactics MUST not only be questioned, they need to be adjusted and modified; risk assessment, risk-benefit analysis, safety and survivability profiling, operational value and firefighter injury and LODD reduction must be further institutionalized to become a recognized part of modern firefighting operations.

It’s no longer just brute force and sheer physical determination that define structural fire suppression operations. Aggressive firefighting must be redefined and aligned to the built environment and associated with goal oriented tactical operations that are defined by risk assessed and analyzed tasks that are executed under battle plans that promote the best in safety practices and survivability within know hostile structural fire environments.

It’s all about understanding the building-occupancy relationships and integrating; construction, occupancies, fire dynamics and fire behavior, risk, analysis, the art and science of firefighting, safety conscious work environment concepts and effective and well-informed incident command management. This is what it’s going to take to truly provide a means for “everyone to go home”.
There are new elements being introduced into the fireground operational formula related to structure fires and the buildings and occupancies that defined them. The axiom of Building Knowledge = Firefighter Safety (Bk=F2S) continues to form the basis for effective operations, for it’s the knowledge of the building and it’s anatomy that defines the level of operational safety and incident success share by all personnel and operating companies at the incident.

Risk based response assignments
The buildings, structures and occupancies that comprise typical response districts pose unique and consistent challenges during structural fire attack. The variety of occupancies and building characteristics establish varying degrees of risk potential, with defined and recognizable strategic and tactical measures to be taken-sometimes uniquely to each occupancy type. Although each occupancy type presents variables that dictate how a particular incident is handled, most company operations evolve from basic principles rooted in past performance and operations at similar structures. This is based on what I define as; “predictability of performance.”

When we look at various buildings and occupancies, past operational experiences; those that were successful, and those that were not, give us experiences that define and determine how we access, react and expect similar structures and occupancies to perform at a given alarm in the future. Naturalistic (or recognition-primed) decision-making forms much of this basis. We predicate certain expectations that fire will travel in a defined (predictable) manner, that fire will hold within a room and compartment for a given duration of time, that the fire load and related fire flows required will be appropriate for an expected size and severity of fire encountered within a given building, occupancy, structural system.

We used to know with a measured degree of predictability, how our buildings would perform, react and fail under most fire conditions. This is what our years of fireground experience provided us, and how we ultimately would predict, assess, plan and implement our incident action plans and ultimately deploy our companies-based upon the predictable performance expected. Conventional Construction Structures (CCS) had this “predictably of performance.” You know, that typical residential structure, the 2-1/2 story wood frame, the three story brick and joist type III occupancy, the four story frame multiple occupancy, etc., etc. Unlike Engineered System Structures (ESS) whose predictability is rooted in the fact that they are unpredictable.

The emerging fire service issues affecting buildings, occupancies and structural systems related to ESS is only beginning to take hold a prominent role and level of significance that is long overdue. The fire service has been dealing with the operational issues and line-of-duty deaths related to ESS since the 1980s and now in 2009, we’re finally raising these ESS issues to a dialog point that is influencing firefighter safety, survival and operations.

The fire service is beginning to fully recognize the merits in adjusting, altering, and changing our strategic and tactical ways of doing business in the streets. It’s becoming self evident in the fire service that it’s no longer acceptable to think that ESS buildings and occupancies will perform in the same manner as CCS buildings and occupancies and that tactics deployed in both CCS and ESS buildings and occupancies will react under similar strategic and tactical plans and tasks. These unique and inherent factors within the ESS profiles must give us a new standard for operational deployment; strategies and tactics that are defined by the risk profile of the building, its engineered structural systems, materials and methods of construction and the fire loading present.

Considerations for changing fire flow rates, the sizing of hose line and the adequacies for fire flow demand and application rates, staffing needs for safe operations, considerations for defensive positioning and defensive operating postures must be considered, and it warrants repeating again; Reckless-Aggressive firefighting must be redefined in the built environment and associated with goal oriented tactical operations that are defined by risk assessed and analyzed tasks that are executed under battle plans that promote the best in safety practices and survivability within know hostile structural fire environment- with determined, effective and proactive firefighting.

Occupancy risk not occupancy type
Many of today’s incident commanders, company officers and firefighters lack the clarity of understanding and comprehensio
n that correlate to the inherent characteristics of today’s buildings, construction and occupancies. We assume that the routiness of our operations and incident responses equates with predictability and diminished risk to our firefighting personnel.

Our current generation of buildings, construction and occupancies are not as predicable as past conventional construction, therefore risk assessment, strategies and tactics must change to address these new rules of structural fire engagement. You need to gain the knowledge and insights and to change and adjust your operating profile in order to safe guard your companies, personnel and team compositions. Again strategic firefighting operations; Strategies and tactics must be based on occupancy risk not occupancy type.

With this being stated, another primary consideration that must be deliberated and changed as it relates to firefighting and the built environment is the long held fire service tradition and practice of Structural Fire Alarm Response (resources) Assignments being based upon the Occupancy Type. Sending the two Engine Companies and one Truck Company assignment with a Battalion Chief and a RIT team to a reported structure fire in an occupied single family residential structure; is not acceptable.

As I previously stated, the rules for structural fire engagement have changed. Structural Fire Alarm Response (resources) Assignments should be based upon the Risk Profile the occupancy has related to Building construction, systems and projected or determined fire loading. Sending the four Engine Companies, two Truck Companies, a manpower Heavy Rescue Company, two additional Battalion Chiefs, a Safety Officer and support staff assignment with the assigned Battalion Chief on the alarm assignment to a reported structure fire in an occupied single family residential structure, that happens to be 5000 square feet in size with ESS components; IS Acceptable.

  • There is an acute understanding and corollary of technical knowledge and inter reliance on occupancies, construction, strategy, tactics, risk, safety, physics, engineering and fire suppression theory, This is a fact.
  • Think about the results of the Charleston, S.C., Sofa Super Store (Routley) Report (part one and part two) and the results and recommendations published in the recent NIOSH Fire Fighter Fatality Investigation and Prevention Program Report F2007-18 for the June 18, 2007, fire in which nine career firefighters died in rapid fire progression at a commercial furniture showroom.
  • There are extensive and numerous examples of issues affecting Building Construction, Command Risk Management and FireFighter Safety. The performance of a building, structural systems, occupancy, fire behavior and interaction of firefighters under combat fire suppression operations clearly frames our focus on the building, occupancy and Firefighting and the Built Environment.
  • Occupancies & Associated Risks
  • Each occupancy type has inherent risk factors. Are you aware of this fact and do you employ appropriate tactics in your operations to operate effectively and safely?

 Single Family Residential

 Multiple Occupancy

 Multiple Occupancy -Transient

 Multiple Occupancy -Special

 Business

 Mercantile

 Industrial

 Storage

 Assembly

 Institutional

 Miscellaneous

  • The predictability of performance
  • Risks & Containment; Firefighting and the Built Environment.
  • What are your considerations
  • Beyond the Fire Compartment
  • Fire Analysis of ESS versus CCS
  • Exposure to Products of Combustion & affects
  • Fire Dynamics and predictability of Fire Behavior
  • Personnel Exposure Risks- Aggressive versus Reckless versus Pro-Active
  • Structural Degradation, Compromise and collapse
  • Previous, historical parameters and Building/Structural Performance always provides a postulated measurement to gauge operational tasks and form the basis for the Incident Action Plan.

These parameters must be recognized and integrated

  • There is a need to integrate performance based incident indicators derived from engineering, physics, fire dynamics, historical and statistical basis
  • Basic Size-Up is Antiquated for Firefighting and the Built Environment. – Start Thinking in terms of Dynamic Risk Assessment and Command Risk Management
  • USFA Annual Report on Firefighter Fatalities in the United States “More firefighters using an aggressive interior attack in enclosed structures die more often, in greater numbers, and with greater multiple line-of-duty deaths than those using the same tactical approach in opened structure fires.”

That’s all Folks – It’s Not about Entertainment

When we focus out attention on Building Construction, Command Risk Management and FireFighter Safety and the essence of combat structural fires; Structural firefighting is what it’s all about, is it not? The reason we have such veneration for firefighting and the fire service and all it entails; has a lot to do with going into burning buildings and fighting fire. We enjoy it tremendously; we have fun at, because of who we are and what we do-as firefighters. But, firefighting has its adverse consequences, with all too familiar costs, in the form of injuries, debilitating accidents and line of duty deaths.

As a firefighter, to say that we love firefighting would be an understatement, BUT one issue that we need to address is the fact that there are many individual firefighters, companies and organizations that employ fireground operational practices that promote the “enjoyment and entertainment” of working a good job within the occupancy compartment of a structural fire in the building environment.

Staying too long in the wrong place, operating tactically in an adverse environment with known hazards that do not have value, other than the enjoyment of nozzle time and operating time in the fire.

Fire suppression tactics must be adjusted for the rapidly changing methods and materials impacting all forms of building construction, occupancies and structures. The need to redefine the art and science of firefighting is nearly upon us. Some things do stand the test of time, others need to adjust, evolve and change. Not for the sake of change only, but for the emerging and evolving buildings, structures and occupancies being built, developed or renovated in our communities. As Chief Brunacini stated; “We will risk our lives a lot, in a highly calculated and controlled manner, to protect a savable human life; we will risk our lives a little, in a highly calculated and controlled manner, to protect savable property. We will not risk our lives at all to protect lives or property that is already lost.”

If the fire service can significantly increase proficiencies in building knowledge and equate that to other fundamental operational aspect in structural fire operations, then there would be a direct enhancement to firefighter safety, through injury and LODD reduction.

If we understand buildings, occupancies and constructions, and balance this with our understanding of fire dynamics and orchestrate it with appropriate strategies, tactics and command management, then we made the new safety equation work; Building Knowledge = Firefighter Safety (Bk=F2S).

Risk versus Close Call, What are We Doing?

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Here’s one for timing. My recent post today on risk related to vacant or unoccupied structures…. Check out the series of photos for a close call incident involving a trailer fire, HERE. Photo sequence by Patrick Scott.

Again, the question before us; Why the risk, What’s the value, Who is looking out for our safety?Are we engaging in Tactical Entertainment….are we setting ourselves up for an injury or worst?

Vacant or Unoccupied: Tactical Risk and Safety

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We seem to do a lot of things at times out of common practice and repetition, you know; “We’ve always done it that way….” syndrome. There’s a resonating theme that is making its way around the fire service dealing with going to a defensive tactical posture at vacant or unoccupied structure fires.

This command posture leads to limiting interior operating engagement, while promoting a high degree of risk management.With that being said, there are also plenty of opinions on these types of policies as such, since this type of tactical effort may be contrary to the local “culture and traditions” of the responding agencies and may be a hard pill to swallow, since we’re in the job of “ fighting ALL fires..” Please refresh your memories on a past post on Tactical Entertainment HERE and HERE

Here are some basic definitions to keep us all on the same playing field;

Vacant; refers to a building that is not currently in use, but which could be used in the future. The term “vacant” could apply to a property that is for sale or rent, undergoing renovations, or empty of contents in the period between the departure of one tenant and the arrival of another tenant. A vacant building has inherent property value, even though it does not contain valuable contents or human occupants.

Unoccupied; generally refers to a building that is not occupied by any persons at the time an incident occurs. An unoccupied building could be used by a business that is temporarily closed (i.e. overnight or for a weekend). The term unoccupied could also apply to a building that is routinely or periodically occupied; however the occupants are not present at the time an incident occurs. A residential structure could be temporarily unoccupied because the residents are at work or on vacation. A building that is temporarily unoccupied has inherent property value as well as valuable contents.

The question today, as you’re having coffee around the table is this. As a responding company, you arrive at the scene of a vacant or unoccupied structure. The building’s construction features and systems have inherent risk associated with the occupancy, (as is the case with nearly all of our structures and occupancies).

Your company determines that you’re going to go defensive, even though you probably could make a reasonably safe entry and engage in interior structural fire suppression.

Would there be any repercussions in your station, battalion/district/community or organization if you took this tactic? What are YOUR personal thoughts on this form of risk management?

Some insights, HERE and HERE, HERE, HERE and HERE

NIST;Fire Fighting Tactics under Wind Driven Conditions:Laboratory Experiments

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The National Institute of Standards and Technology (NIST) and the Fire Protection Research Foundation (FPRF) with the support of the Department of Homeland Security (DHS)/ Federal Emergency Management Agency (FEMA) Assistance to Firefighters Research and Development Grant Program and the United States Fire Administration (USFA) conducted a series of wind driven fire experiments in a laboratory structure. A copy of this report is available HERE.

The experiments were conducted in the NIST Large Fire Facility in Gaithersburg, Maryland from November 2007 to January 2008. The objective of this study was to improve the safety of firefighters and building occupants by enabling a better understanding of wind driven firefighting tactics, including structural ventilation and suppression.

This was achieved by investigating technical issues that address the teaching of the dynamics of fire phenomena and prediction of fire intensity and growth under wind driven conditions. The data from this research will also help to identify methods and promulgation of improved standard operating guidelines (SOG) for the fire service to enhance firefighter safety, fire ground operations, and use of equipment.

The experiments were conducted in NIST’s Large Fire Facility in order to provide the best levels of control on the experiments and have the capability of making heat release rate and high quality gas concentration measurements which would be difficult and cost prohibitive to make in an acquired structure. The experiments were designed to expose a public corridor area to a wind driven, post-flashover apartment fire. The door from the apartment to the corridor was open for each of the experiments. The conditions in the corridor were of critical importance because that is the portion of the building that firefighters would use to approach the fire apartment or that occupants from an adjoining apartment would use to exit the building.

As implied by the title, the laboratory experiments documented in this report are only one portion of the research needed to analyze the impact of wind on a fire resistive structure fire and demonstrate potential methods (tactics) for improving firefighter safety and effectiveness.

These experiments were conducted in advance of a series of fire experiments that were performed in a 7 story building on Governors Island in New York City in February 2008. The New York City experiments conducted by NIST in partnership with the Fire Department of New York City and Polytechnic University were also done with the support of a DHS/ FEMA Assistance to Firefighters Research and Development Grant Program and the USFA.

These experiments demonstrated the thermal conditions that can be generated by a “simple room and contents” fire and how these conditions can be extended along a flow path within a structure when a wind condition and an open vent are present. Two potential tactics which could be implemented from either the floor above the fire in the case of a WCD or from the floor below the fire in the case of the external water application were demonstrated to be effective in reducing the thermal hazard in the corridor.

Other data and observations, such as the fire pulsing out of the window opening against the wind, can provide valuable information to the fire service for hazard recognition purposes.

According to NIST, further research in an actual building is required to fully understand the ability of firefighters to implement these tactics, to examine the thermal condition through the structure such as in stairways, and to examine the interaction of these tactics with building ventilation strategies both natural and with positive pressure ventilation. The report also includes a series of heat release rate experiments which were used to characterize the fuel packages for these and future experiments.

New Tactical Definitions: Where do you fit in?

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I spent a large part of this past week, and the entire day and evening this past Saturday conscientiously working on refining sections of my lecture program that will be presented at this year’s Fire Department Instructors Conference (FDIC) in April.

I was deeply immersed in some research and in reviewing a number of case studies and line of duty death reports, while furthering my concepts related to a new methodology on fireground operations and command risk management that I call Five Star Command TM .

This got me thinking alot about the manner in which the modern fireground is managed, the way the current generation of firefighters and officers see themselves, and the manner in which strategic and tactical battle (IAP) are developed and executed. It got me thinking about what, we as firefighers are thinking when we find ourselves in the center of a “good” rockin’ job….I have been giving a lot of thought over the past couple of months to the continuing challenges and issues surrounding firefighter LODD and the issues of dynamic risk assessment, command decision-making and company level accountability. My recent lecture at the South Carolina Fire Academy’s annual Firefighter Safety & Health Conference provided an enlighten forum with a wealth of critical thinking and dialog amongst the attendees on firefighter safety, command risk assessment and tactical accountability related to opinions on the emerging new model of modern fire suppression strategies and tactics.

I got to thinking about the manner in which I functioned as a company officer when I first got promoted and the kinds of things we used to do; when we were young and both naïve to the true risks of fireground operations and filled with a sense of fireground invincibility. I know, I placed myself or found my company in positions and places of greater risk, “back in the day”, for the sake of getting more nozzle time in a well involved structure fire, or extended our stay-times in hostile places that were not safe or acceptable by today’s standards. WE, were lucky. Anyone of us could have then or even in the present day, could find ourselves in an instant, in the wrong place, operating under the wrong plan for all the wrong reasons. We looked for ways to increase our “playtime” for the pleasure, enjoyment, adrenaline rush, exuberance and at times euphoric pleasure doing what we do best; and that was fighting fires.

To think that this is not happening in today’s fire service would be absurd and illogical. If we look at the ways many departments, companies or personnel are operating on the fireground during structural fire operations and the places we are assigning and directing them to operate within, we would be asking ourselves, WHY?

There are tremendous national, state and locally efforts and initiatives directed at enhancing firefighter safety, reducing firefighter line of duty deaths and injury rates, on effective command management, skill development, competencies and cultural changes to improve and enhance the fire service. But it all has to start with the basic unit of operation; the Company, the Officer and personnel. Today’s incident scene and structural fires are unlike those in past decades and will continue to challenge us operationally when confronted with structural fire engagement and combat operations. Operationally, We need to be doing the right thing, for the right reason, at the right time and in the right place to increase our safety and incident survivability.

We need to stop “entertaining” ourselves, the job is dangerous, it has risks, we are not invincible, and we can die; at any alarm, in any fire, at anytime for any number of reasons…..Let me leave you with some new thoughts and concepts related to operational safety and the definitions that I’ve come to develop that may support apparent or contributing causes to many of the fire service’s undesired events or incidents.

Think about the definitions; think about how they apply to you, your company or your operations; past, present or future. I’ll share more insights on these evolving definitions in upcoming postings.

TACTICAL AMUSEMENT ˈtak-ti-kəl ə-ˈmyüz-mənt
1: of or relating to structural fireground tactics: as a (1) a means of amusing or entertaining during fire suppression, support tasks or operations that places personnel at risk
2: the condition of being amused while engaging in fire suppression, support tasks or operations that places personnel at risk
3: pleasurable diversion while engaging in fire suppression, support tasks or operations: entertainment; that places personnel at risk

TACTICAL DIVERSION ˈtak-ti-kəl də-ˈvər-zhən
1: the reckless act or an instance of diverting from an assignment, task, operation or activity while engaging in fire suppression, support tasks or operation for the sake of amusing or entertainment; that places personnel at risk
2: the reckless act of self determined task operations that diverts or amuses from defined risk assessment and incident action plans; that places personnel at risk

TACTICAL CIRCUMVENTION ˈtak-ti-kəl sər-kəm-ˈven(t)-shən
1: to deliberately manage to get around especially by ingenuity or approach that diverts for the purpose of amusing; assignment, operations or tasks that countermand or disregard defined risk assessment and incident action plans; that places personnel at risk
© 2009 Christopher J. Naum