An adjuster's first estimate is usually based on what can be seen and measured from the room side: burned drywall, damaged flooring, soot on ceilings. That is reasonable, because nobody can see behind finished surfaces without removing them. Once demolition starts, the picture often changes. Heat travels through wall and ceiling cavities, smoke settles on the back of drywall and on framing that looked untouched, and firefighting water soaks insulation well away from the burn.
A supplement is a request to add work to the approved scope based on conditions discovered later. It is a normal part of fire claims, not a sign that anyone did something wrong. What determines whether it goes smoothly is whether the new conditions are shown clearly enough that an adjuster who was not in the room can understand them.
Common supplement items in fire rebuilds
| Discovered condition | Why it was not in the first estimate | Documentation that helps |
|---|---|---|
| Charred framing in a wall that looked fine | Drywall face was intact; char was in the cavity | Wide photo of the wall, close-up with a tape measure, location on a floor sketch |
| Smoke residue on the back of drywall in adjacent rooms | Only visible once panels are removed | Photos of the panel backs and the cavity, notes on which rooms |
| Wet insulation from firefighting water | Ceilings below looked dry from the room side | Moisture readings with locations, photos of insulation removal |
| Heat-damaged wiring in walls | Insulation on wires can melt without visible surface damage | Electrician's written note and photos of the wire runs |
| Roof truss or rafter damage in the attic | Attic access was limited or unsafe at first | Attic photos, an engineer or builder's assessment |
| Code-required upgrades | Only clear once the inspector reviews the open work | Inspector's written correction notice or comments |
Putting a supplement together
Stop before covering
Do not close walls or dispose of key damaged material until the condition is documented and, ideally, the adjuster has been notified.
Photograph wide, then close
Each item needs a photo that shows where in the house it is, then one that shows the damage clearly.
Measure and itemize
Linear feet of studs, square feet of sheathing or insulation, number of circuits. Vague descriptions slow approvals.
Tie it to the cause
Explain briefly how the fire, heat, smoke or firefighting water produced the condition.
Send it in writing
Email the package to the adjuster and keep a copy. Ask whether a re-inspection is needed.
Track the response
Note when it was sent, when the adjuster acknowledged it, and what was approved or questioned.
Questions to ask your adjuster about supplements
- How do you prefer supplements to be submitted, and to whom?
- Will you need to re-inspect before approving added structural work?
- Can work continue on unaffected areas while a supplement is under review?
- If a supplement is partly denied, what is the process to discuss it?
General information for Westminster, not a quote or professional advice. In an emergency, call 911.