GuideLast reviewed 7 July 2026
Workplace Safety Matting and Hot Works Risk Assessments
How floor protection fits into a hot works risk assessment, what to record about matting, and when to review it — for health and safety managers.
A hot works risk assessment is the document that decides what precautions a job needs — and floor protection is one of the things it should record, not something bolted on afterwards. This guide covers where matting fits into that assessment, what to write down about it, and when to revisit the decision.
Where does floor protection fit into a hot works risk assessment?
Floor protection fits into a hot works risk assessment as one of the identified controls for the sparks, spatter, slag or hot debris a specific job will produce — recorded alongside fire watch, extinguishing means, removing combustibles and PPE, not as a separate matting decision made independently of the assessment. If matting is chosen before the risk assessment is done, there’s a real risk it’s sized or graded for the wrong exposure.
What should a hot works risk assessment record about matting?
| What to record | Why it matters |
|---|---|
| The process and expected spatter/spark/dust exposure | Determines the grade and coverage matting actually needs |
| The area matting needs to cover | Should reflect the real spark/spatter zone, not just the workpiece — see our spark travel distance guide |
| The fire classification specified | So the decision is traceable later, not just “we used a fire mat” |
| Who checked the matting’s condition before the job | Damaged matting is a control that’s already partly failed |
| Whether the area is fixed or temporary | Affects whether portable protection is appropriate — see our temporary hot works floor protection guide |
| Review date or trigger | When the assessment (and the matting decision within it) should be revisited |
Does documenting matting in the assessment replace inspecting it?
No. Recording what matting is specified and why is a separate step from actually checking it’s in serviceable condition before the job starts — a risk assessment that names a fire-resistant mat is only accurate if that mat is still intact, not burned through or holed. Build a quick condition check into the pre-job routine rather than assuming the assessment’s original decision still holds.
When should the matting element of a hot works risk assessment be reviewed?
Review the matting element whenever the process, area or exposure changes — a new process introduced to a bay, a station moved closer to a walkway, or matting that’s visibly degraded — rather than only on a fixed calendar date. A hot works risk assessment that hasn’t been revisited since the floor layout changed is describing a floor that no longer exists.
Common mistakes to avoid
- Choosing matting first and writing the risk assessment to match it, rather than the other way round.
- Recording “fire-resistant matting in place” without naming the classification or the area it actually covers.
- Treating the risk assessment as a one-off document rather than reviewing it when the process or layout changes.
- Assuming matting named in an old assessment is still in serviceable condition without checking.
Does matting recorded in a risk assessment remove the need for other precautions?
No. Floor protection is one control among several a hot works risk assessment should identify — fire watch, extinguishing means, PPE, removing or shielding combustibles and permit sign-off all sit alongside it, and no mat, however well specified, replaces any of them. No matting is fireproof; see our fireproof vs fire-resistant guide for why that distinction matters when writing an assessment.
If you’re working through the floor protection element of a hot works risk assessment, tell us the process, bay size, floor type, spark/spatter/dust zone, traffic, any oil or coolant exposure, and any fire classification required, and we’ll help you specify something you can document with confidence. See workplace safety mats and the wider hot works matting range, or get in touch.