Why brush fires, structure fires, lithium ion batteries, and protein fires require different claim strategies
By David Melzer, Property Claims Consultant
One of the biggest mistakes in fire damage claims is treating every fire as if it created the same residue. It did not.
A small brush fire that burns vegetation behind a home can create a very different exposure from a garage fire involving an electric vehicle and lithium ion batteries. Both are different from a structure fire involving plastics, treated lumber, roofing, wiring, furniture, and household chemicals. A protein fire from eggs or meat left on a stove can create another type of fine, greasy, odor producing residue even when the flames never spread beyond the pan.
The proper fire damage insurance claim should begin with a basic question: what burned?
The fuel changes the smoke
The United States Environmental Protection Agency states that pollutants in smoke vary with the fuel that burned. Its research also distinguishes natural vegetation fires from wildland urban interface fires that burn homes, vehicles, and other human made materials. EPA research has found that smoke from destructive fires involving structures can contain elevated trace metals, including copper, lead, and zinc, and that some hazardous pollutant emission factors can be substantially higher than emissions from natural fuels.
That is why a wildfire insurance claim should not be evaluated only by the distance between the flames and the home. A wildfire smoke damage insurance claim may involve ash and smoke that traveled from burned structures, vehicles, utility equipment, or natural vegetation. The source area, wind direction, burn footprint, and materials consumed can matter when developing the inspection and sampling plan.
A brush fire that burned trees and bushes in the backyard still may cause a legitimate smoke damage claim, but the investigation should fit the event. It may focus on exterior deposition, open doors or windows, attic or crawlspace pathways, HVAC operation, and indoor settled dust. It should not automatically use the same analyte list or remediation assumptions as a battery fire inside a garage.
Lithium ion battery fires create a different concern
Lithium ion batteries are not just another piece of household content. NIST reports that lithium ion battery fires can be difficult to extinguish and occur in homes, vehicles, consumer products, warehouses, and other settings. A NIOSH study available through the Centers for Disease Control and Prevention evaluated aerosols from several lithium ion battery chemistries and identified respirable particles containing materials such as nickel, manganese, cobalt, aluminum, carbon, fluorine, iron, silicon, and titanium, depending on the battery type.
That does not mean every battery fire contaminates every surface with all of those elements. It means a fire involving an electric vehicle, energy storage system, e bike, power tool, or other substantial battery source may justify a targeted evaluation that is different from ordinary soot cleaning.
If Tesla batteries or another lithium ion battery system burned in a garage, the fire claims adjuster should not assume that a general soot wipe answers every contamination question. A qualified industrial hygienist or other appropriate professional may need to evaluate the known battery chemistry, the fire department report, debris, smoke pathways, HVAC distribution, nearby porous materials, and the laboratory methods capable of answering the disputed questions.
Protein fires can be visually deceptive
A protein fire may leave limited heavy soot but create a persistent odor and a fine residue that spreads beyond the immediate cooking area. In our experience, these losses are often underestimated because the structure does not look heavily burned. The cleaning process can still require detailed attention to cabinets, walls, ceilings, textiles, contents, ventilation components, and concealed or difficult to access surfaces.
The answer should not be to label every odor a total loss. The answer is to document the conditions, identify affected materials, establish a technically supportable cleaning method, and verify whether cleaning can restore the property. Trial cleaning, odor evaluation, surface specific recommendations, and post cleaning verification may be more useful than a generic statement that everything can be wiped.
Testing should be designed around the disputed issue
An ash and smoke damage insurance claim can go wrong when testing is ordered without a clear question. A laboratory result is not automatically proof that a particular fire caused the detected material. Background sources, sampling locations, control samples, laboratory detection limits, chain of custody, and the relationship between the target analytes and the materials that burned all matter.
For smoke damage insurance claims, we normally want the expert to explain why each sampling method was selected and how the results affect restoration. If a heavy metal is detected, what source is being evaluated? If soot or char is identified, does its distribution match the reported fire? If the HVAC system was operating, what components need inspection? If porous contents were exposed, is cleaning accepted and feasible for those materials?
Testing should help answer scope. It should not be performed just to create a thick report.
Cleaning versus replacement is material specific
The same residue can affect materials differently. Sealed stone, painted drywall, unfinished wood, insulation, electronics, fabrics, leather, food, cosmetics, and HVAC components do not all respond to the same process. Heat damage, corrosion potential, odor retention, porosity, accessibility, manufacturer guidance, and the ability to verify cleaning can change the answer.
This is where smoke damage claims often break down. The fire insurance adjuster may approve general cleaning by square footage, while the restoration contractor recommends replacement of selected materials and specialized treatment of others. A fire damage adjuster should require the disagreement to be stated by material and location, not hidden inside two different total prices.
A proper fire adjuster comparison might ask whether the attic insulation is cleanable, whether smoke entered wall cavities, whether the duct liner can be restored, whether electronics require specialized evaluation, whether soft goods can be cleaned under an accepted process, and whether the proposed work includes post cleaning verification.
The claim strategy should fit the fire
Homeowners searching fire home insurance or home insurance fire damage information are often given broad advice that does not account for the source. The same is true for a business owner looking for fire insurance for business. The policy may cover direct fire damage, smoke, contents, business income, debris removal, code upgrades, and other components, but the scope still has to be proven.
A fire damage public adjuster should connect the scene evidence, expert findings, restoration standards, and policy. If the dispute becomes legal or centers on a coverage denial, a fire damage claim attorney may also be necessary. Public adjusters do not replace attorneys, hygienists, engineers, or restoration contractors. The strongest claims use each professional for the issue within that professional’s expertise.
At Property Claims Consultant Inc., we do not begin with the assumption that every fire requires the same testing or the same cleaning. We begin with the materials that burned, the pathways into the property, the affected materials, and the policy. That is how insurance for fire damage should be adjusted, one actual loss at a time.
Sources
United States Environmental Protection Agency, Wildland Fire Research: What’s in Smoke?
Centers for Disease Control and Prevention and NIOSH, Lithium Ion Battery Explosion Aerosols
National Institute of Standards and Technology, Understanding the Risk of Lithium Ion Battery Fires