ISSUES
Construction sites are prone to fires due to various hazards and the absence of permanent fire safety measures. Annually, there are thousands of construction site fires, causing significant property damage, deaths, and injuries. These fires often stem from human error, improper storage of flammable materials, and electrical failures. Hot work activities like welding and cutting are major contributors.
COMMON CAUSES OF CONSTRUCTION FIRES
- Hot Work: Welding, cutting, and grinding operations can easily ignite nearby combustibles.
- Electrical Faults: Improperly installed or maintained temporary wiring and lighting can spark fires.
- Flammable Materials: Improper storage of solvents, paints, adhesives, and other flammable materials can lead to explosions and rapid fire spread.
- Accumulation of Debris: Wood scraps, packaging, and other waste can easily catch fire.
- Cooking and Heating Equipment: Grills, hot plates, and temporary heating devices can be fire hazards if not properly used or maintained.
CONSEQUENCES OF CONSTRUCTION FIRES
- Property Damage: Fires can cause extensive damage to buildings, materials, and equipment.
- Injuries and Fatalities: Workers can suffer burns, smoke inhalation, and other injuries; fatalities are not uncommon.
- Project Delays: Fires can significantly delay project completion and increase costs.
- Legal and Financial Repercussions: Contractors and property owners may face legal and financial liabilities.
REGULATIONS
OSHA 29 CFR 1926.352:
- (a) When practical, objects to be welded, cut, or heated shall be moved to a designated safe location, or, if the objects cannot be readily moved, all movable fire hazards in the vicinity shall be taken to a safe place or otherwise protected.
- (b) If the object cannot be moved and if all the fire hazards cannot be removed, positive means shall be taken to confine the heat, sparks, and slag and to protect the immovable fire hazards.
- (c) No welding, cutting, or heating shall be done where flammable paints or other compounds or heavy dust concentrations create a hazard.
- (d) Suitable fire extinguishing equipment shall be immediately available in the work area and maintained in a state of readiness.
- (e) If normal fire prevention precautions are not sufficient, additional personnel shall be assigned to guard against fire during and after hot work. These personnel must be trained on anticipated hazards and equipment use.
- (f) When welding, cutting, or heating is performed on walls, floors, and ceilings, precautions must be taken on the opposite side of the surface as well.
- (g) In enclosed spaces, gas supplies must be shut off when not in use, and hoses and torches removed when left unattended or at the end of a shift.
- (h) Flammable containers must be kept closed, and empty containers must be removed from the area.
EXAMPLE INCIDENTS – THE FACTS
- According to the U.S. Bureau of Labor Statistics (BLS), more than 200 workers are killed and over 5,000 are injured annually in work-related fires and explosions.
- While fire-related injuries are rare, they have the highest casualty rate among workplace accidents.
- In SouthPark, Charlotte (May 2023), two workers—Demonte Tyree Sherrill and Reuben Lydell Holmes—died from burns in a construction site fire.
- On June 16, 2025, a lightning strike started a fire at a construction site in Port Arthur, Texas, resulting in three worker fatalities and two injuries.
WHAT YOU NEED TO KNOW: KEY ASPECTS OF HOT WORK PERMITS
- Hazard Assessment: A competent person must assess for fire hazards, including combustibles and ignition sources.
- Fire Prevention: Remove combustibles, provide fire extinguishers, and assign a fire watch.
- Fire Watch: A designated fire watch must monitor the area for at least 30 minutes after hot work is complete.
- Confined Spaces: Additional precautions and certifications may be required.
- Non-Designated Areas: Hot work permits are required and demand thorough inspection.
EXAMPLES OF HOT WORK ACTIVITIES THAT REQUIRE PERMITS
- Welding or cutting (e.g., torches, chop saws)
- Brazing or soldering
- Grinding
- Controlled burning (never use accelerants)
- All confined spaces
IMPORTANT DO’S FOR HOT WORK
- Do develop and enforce a fire safety plan including permits, material storage, extinguishers, and fire watches.
- Do ensure all workers are trained in fire prevention and emergency procedures.
- Do issue and post hot work permits before starting work.
- Do ensure fire protection systems are functional and regularly inspected.
- Do assign someone to oversee hot work compliance.
- Do test all required environments before and during operations.
IMPORTANT DON’TS FOR HOT WORK
- Don’t ignore pre-planning for fire control and rescue.
- Don’t ignore ignition sources or confined space hazards.
- Don’t ignore environment testing and smoking rules.
