Removing smoke odor from the home

3/1/2021 (Permalink)

Smoke can enter and remain in and between the walls of the living space. If it is not properly removed, the smoke odor reoccurs from time to time, particularly during damp periods. Therefore, action should be taken to properly remove all smoke odors.

During a fire, the heat will expand pores in the walls and fill the pores with smoke. After the fire, the house cools, the pores close and trap the smoke odor. On warm days the pores will open and release the trapped smoke odor, which could settle on furnishings. Professional fire restorers can eliminate the smoke odor with a process called thermal fogging, which opens the pores in the walls and neutralizes the smoke odor. There is probably no process a home owner could use that would work as effectively as thermal fogging.

Household vents and ducts trap smoke odors. During a fire, smoke drifts through the ducts and becomes lodged on the sides. Since it may be impossible to clean the ducts; some professional fire restorers will use a chemical sealer to secure smoke permanently to the sides of the ducts. This procedure prevents smoke odors from drifting in the air at a later time.

If the attic has been insulated prior to the fire, it may be necessary to remove the insulation. Insulation cannot be cleaned; unfortunately, it will need to be replaced because insulation retains smoke odors.

https://extension.missouri.edu/publications/gh145

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