Carbon and soot buildup on steel roofing and structural beams is more than a cosmetic problem. Left untreated, it traps heat, hides corrosion, and makes inspection difficult. Traditional cleaning methods — wire brushing, pressure washing, chemical strippers — either damage the coating underneath or introduce moisture that causes new problems.
Dry ice blasting removes this buildup mechanically and completely dry, using CO2 pellets at minus 78.5 degrees Celsius fired through compressed air. The thermal shock and kinetic impact lift carbon deposits without eroding the steel or its coating underneath.
This structural beam shows years of accumulated carbon and soot deposits before treatment, and the same surface after a single dry ice blasting pass. No sanding, no chemical residue, no water damage to surrounding materials — just the contaminant removed, mechanically, down to the original surface.
Why this matters for steel structures
Carbon and soot layers insulate heat unevenly across a steel surface, which can accelerate localised corrosion over time. They also make it harder to spot early signs of rust or structural wear during routine inspection. Removing this buildup isn’t just cosmetic — it’s a maintenance step that supports the longer-term integrity of the structure.
No disassembly, no downtime
Because dry ice blasting works in place, structural elements don’t need to be removed or the area shut down for extended periods. The pellets sublimate on impact, leaving no secondary waste to clean up — just the loosened carbon and soot, swept or vacuumed away.
If you’re dealing with carbon buildup, soot, or fire damage on structural steel, call 1300 798 726 for a free assessment, or get in touch through our contact page.
