Cases, citations, and lessons from the field.
Real incidents. Real costs. Know what's at stake before your next hot work permit.
Essential Reading
The data and standards every contractor needs to know.
NFPA: 3,396 Hot Work Structure Fires Per Year
The definitive national loss data. Thousands of structure fires every year tied to welding, cutting, and spark-producing work — making hot work one of the clearest preventable fire-loss categories.
Read articleFM Global: 41x Greater Losses Without a Hot Work Program
FM Global's own loss data shows a 41-to-1 difference in fire losses between facilities with well-managed hot work programs and those without. Most fires are caused by outside contractors.
Read articleZurich Insurance Already Wants What DutyProof Built
Zurich's risk engineering team recommends fire watchers take timestamped photos every 15 minutes as proof of compliance. A major global insurer describing a manual workaround for the exact problem we solve.
Read articleAIG: $2.6 Million Average Loss Per Hot Work Incident
AIG's risk engineering team puts the average gross loss at $2.6M per incident. Their guidance lays out the exact fire watch workflow — and the only tool they offer to execute it is a paper tag.
Read articleOSHA 29 CFR 1910.252: The Legal Standard for Hot Work Fire Watch
The federal regulation that governs fire watch for welding, cutting, and brazing. What it requires, what it doesn't say, and why paper compliance isn't enough.
Read articleFM Global: Why Hot Work Permits Are "Critical" — and Still Paper
FM Global calls hot work permits critical to controlling and monitoring temporary hot work. They even built a permit app. But it's still a digital version of a paper form.
Read articleDeep Dives
Regulatory details, state requirements, and insurer expectations.
OSHA Fact Sheet: The Welder Cannot Be the Fire Watch
OSHA is explicit — the person doing the hot work cannot also serve as the fire watch. Fire watch duties are continuous, including during breaks. The most common violation we see is exactly this.
Read articleMassachusetts Doubled Its Fire Watch Requirement to 1 Hour
Massachusetts now requires a full hour of post-work fire watch — double the previous standard — plus three additional hours of area monitoring.
Read articleEPA Now Requires 3-Year Hot Work Permit Retention
New EPA rules require facilities to retain closed hot work permits for up to three years. Filing cabinets just became compliance liabilities.
Read articleTravelers: Hot Work Permits From Day One Through Project Completion
Travelers recommends hot work permit discipline from the first day of construction through completion — with each permit valid for a single shift.
Read articleCase Studies
Real incidents and the lessons they left behind.
Two Firefighters Killed: The Boston Hot Work Fire That Changed a State
In March 2014, unpermitted welding with no fire watch killed two Boston firefighters. Massachusetts responded with statewide hot work certification. The same failure patterns keep repeating.
Read articleAfter the Fire: How Insurers Come After Contractors
After a hot work fire, the carrier's first move is subrogation — recovering their payout by going after the contractor who can't prove they followed protocol.
Read articleDon't wait for the audit.
DutyProof gives you GPS-verified, tamper-proof fire watch records — ready before anyone asks.
Start Your First Watch →Plans from $199/mo · First watch free