What should be removed at the onset of a fire restoration project whenever possible?

The correct answer is the removal of charred surfaces at the onset of a fire restoration project. This step is crucial because charred materials compromise the structural integrity of a building and pose safety hazards during restoration. Charred surfaces, which are typically made of wood or other combustible materials, can lead to further deterioration if not addressed promptly. By removing these surfaces, restoration professionals can prevent the spread of damage, facilitate effective cleaning and restoration of the remaining structure, and ensure a safer environment for the restoration team and occupants.

Each of the other options, while relevant to fire restoration, does not have the same level of priority as charred surfaces. Painted surfaces might be affected by heat and smoke but often can be cleaned or restored without removal. While removing all furniture is sometimes necessary, it is not always feasible, nor is it a requirement at the onset, as some items can be cleaned on-site. Smoke-covered items certainly need attention, but they can be cleaned or restored without immediate removal, unlike charred surfaces which need to be eliminated to ensure safety and effective restoration.