Where the smoke goes
Many bungalows and cottages in Park Hill and nearby neighborhoods have a finished half story: bedrooms tucked under the roof with sloped ceilings, dormer windows and short knee walls. Behind those knee walls are triangular attic spaces, often reached through small doors, that run the length of the house.
Smoke rises. In a house with an open stairway, it heads straight up and spreads under the sloped ceilings. Warm, residue-laden air finds its way behind knee walls through gaps around doors, outlets and old plaster cracks. Insulation in those spaces, if there is any, absorbs odor. The upstairs bedrooms can smell worse than the room where the fire started.
These spaces were often finished later than the rest of the house, sometimes by previous owners, so construction varies. One house might have plaster on the slopes; another, paneling or drywall added in the 1970s over original plaster. Each holds odor differently.
Matching the cleanup to what you find
- IfOdor upstairs but no visible residueAsk for knee-wall spaces and the area above the ceiling to be checked. Residue there may explain the smell.
- IfSoot on sloped ceilings and wallsClean surfaces methodically from top to bottom, then seal before repainting so odor does not bleed back.
- IfInsulation behind knee walls is smokyPlan to remove and replace it rather than deodorize it in place. Test first if it looks like vermiculite.
- IfPaneling or drywall covers original plasterSmoke may sit between layers. Opening a small area can show whether removing the overlay is needed.
Upstairs spots that are easy to miss
Common questions
Can an air purifier fix the smell upstairs?
Air filtration helps during cleanup, but it cannot remove residue stuck to surfaces or buried in knee-wall insulation. The smell usually fades only after those sources are cleaned or removed.
General information for Park Hill, not a quote or professional advice. In an emergency, call 911.