What smoke can leave behind
The source, air and surfaces are connected. A useful assessment keeps all three in view.
- Record what is known and what is uncertain.
- Air exposure and deposited residue need different questions.
- An assessment scope should name responsibilities and deliverables.
Start with the event rather than a colour
“Smoke damage” describes an impact, not one uniform material. What burned, how the event developed, where smoke moved and what else happened in the building all belong in the assessment brief. Heat, suppression water, surface deposits and persistent odour can overlap. A photograph of a dark wall can document an observation; it cannot identify the full residue mixture or the affected boundary.
Write the known event separately from what is inferred. “A pan fire occurred in the kitchen” is different from “all rooms have protein residue.” The first can be an event record. The second needs a basis that a qualified assessor can explain. Uncertainty is useful information when it is retained in the scope.
Separate air, surfaces and assemblies
| Decision area | A useful question |
|---|---|
| Air during exposure | What is happening now, and which current public-health or emergency instructions apply? |
| Deposited material | Which surfaces or contents have a documented impact, and how will an appropriate assessment/test plan establish it? |
| Hidden assemblies | What evidence justifies inspecting cavities, insulation or connected systems before opening them? |
| Continued use | Who will establish whether the actual building or equipment can be used? |
Treat these as connected questions, not interchangeable answers. A household particle filter does not inspect a wall cavity. Removing a visible film does not establish all exposure questions. A familiar smell is neither a chemical test nor an occupancy decision.
Build a record someone else can follow
- Record the date, known origin and location from a safe place.
- Keep photographs with room names and viewpoint labels.
- Note water, heat, access limitations and affected equipment separately.
- Ask the assessor to distinguish observations, assumptions and work recommendations.
- Keep the written basis for retaining, treating or removing an item.
Choose the right type of expertise
The published S700 scope describes professional fire-residue and odour assessment/restoration and has explicit limits. Wildfire and individual exposure questions should not be treated as covered by a generic building-cleaning scope. Ask who is responsible for each part of your actual project: property assessment, relevant hazardous materials, equipment, contents and completion.
A useful provider introduction starts with those responsibilities. Ask what the proposed visit will produce: a verbal opinion, a written assessment, an itemized scope, samples with a stated purpose, or a work plan. Agree the deliverable before confusing an initial look with a full assessment.
References and scope
- ANSI/IICRC S700: fire and smoke restoration — IICRC.
First edition2025; published scope only. Wildfire and exposure evaluation are not comprehensively addressed. The paid standard has not been reproduced. - Improve indoor air quality in your home — Health Canada.
Source control, ventilation and limits of filtration/testing; ozone generators are not recommended in homes.
Source links checked September30,2026. General guidance and original planning questions do not establish the condition, exposure risk or clearance of a property.
Make the next
conversation clearer.
Describe what is known, where the property is and what you need help deciding. The HAUSE team reviews the request and, with your consent, may connect you with a suitable provider if available.
Prepare an enquiry ↗