Fireproofing Materials and Structures Toolbox Talk

Fireproofing materials are used to help steel, walls, decks, shafts, and other building parts resist heat during a fire. On a jobsite, these materials can be damaged, applied incorrectly, covered too soon, or disturbed by other trades before they are fully cured or inspected.

This talk focuses on working safely around fireproofing materials and protecting fire-rated structures during construction. The goal is to keep the crew safe while making sure fire protection systems are not weakened, removed, or ignored.

Why This Matters

• Fireproofing helps structural steel and rated assemblies hold up longer during a fire.
• Damaged or missing fireproofing can reduce protection for workers, occupants, and emergency responders.
• Overspray, dust, and wet materials can create slip, respiratory, and eye hazards.
• Improper patching or covering can hide defects that need inspection.
• Other trades can accidentally damage fireproofing while moving lifts, pipe, duct, conduit, or materials.

Common Hazards

• Spray-applied fireproofing creating dust, overspray, slippery floors, or poor visibility.
• Workers scraping, cutting, drilling, or removing fireproofing without approval.
• Missing firestopping around pipe, duct, cable, or conduit penetrations through rated walls and floors.
• Material being damaged by scissor lifts, ladders, carts, rigging, or stored materials.
• Covering fireproofing with ceilings, wall panels, insulation, or finishes before inspection is complete.
• Working in tight shafts, stairwells, or mechanical rooms where wet fireproofing, poor lighting, and limited access make movement harder.

Safety Checklist

Before Work Begins

• Identify fire-rated walls, decks, shafts, beams, columns, and protected openings in the work area.
• Review the approved material, thickness, patching method, and inspection requirements for the task.
• Set up ventilation, lighting, and access before spraying or patching begins.
• Wear required PPE, including eye protection, gloves, respiratory protection, and protective clothing when needed.
• Protect nearby floors, equipment, panels, openings, and finished work from overspray or damage.
• Coordinate with other trades so lifts, pipe racks, duct sections, and material deliveries do not damage completed fireproofing.

During Work

• Apply fireproofing only in approved areas using the correct material and method.
• Keep workers who are not part of the task away from spray zones and wet material.
• Do not disturb, patch, or remove fireproofing unless trained and authorized to do so.
• Clean overspray and wet material from walking surfaces before it creates a slip hazard.
• Keep penetrations, joints, and openings visible until required firestopping or inspection is complete.
• Report damaged, missing, cracked, loose, or scraped fireproofing as soon as it is found.

Crew Talking Points

• Where are the fire-rated structures or fireproofed areas in today’s work zone?
• What work could damage fireproofing, firestopping, rated walls, or protected steel?
• Are spray areas controlled so nearby workers are not exposed to dust or overspray?
• Have inspections been completed before areas are covered or closed up?
• What should the crew do if they find missing, loose, or damaged fireproofing?
• Raise any questions now about where fireproofing can be touched, patched, drilled, or covered.

Stop Work If

• Fireproofing is being removed, drilled, scraped, or covered without approval.
• Required PPE, ventilation, lighting, or access is not in place for the task.
• Overspray, wet material, or debris creates a slip, visibility, or breathing hazard.
• Fire-rated walls, floors, shafts, or structural members are damaged and not reported.
• Penetrations through rated assemblies are left open without a plan for proper firestopping.
• There is confusion about the correct material, thickness, patching method, or inspection status.

Final Reminder

Fireproofing only works when it is installed, protected, and inspected the right way. Do not damage, cover, or change it without approval.