When cleaning the structure for fire damages, we use dry sponges made up of rubber to pull soot transfer from flat surfaces. These are used to clean the walls, ceilings, cabinets etc. Soot stains and embeds in drywall easily leaving an unsightly black residue as well as a charred smoke smell. Once the sponges are not pulling transfer from the surfaces the walls are ready for paint, we refer to this at times as “prep to paint”.