How to Protect Floors During Temporary Hot Works

A one-off welding, cutting or grinding job away from a fixed bay — on a client’s site, in a plant room, or during a maintenance visit — still needs floor protection, but a permanent installation isn’t the answer. This guide covers how to protect an existing floor for the duration of a temporary hot works job.

What’s different about protecting a floor for temporary hot works?

Protecting a floor for temporary hot works is different because the floor underneath usually isn’t yours to alter — it might be a client’s finished surface, an occupied plant room, or a floor that needs to go back into normal use straight after the job. That rules out anything glued down or left in place, and points instead to matting that can be laid quickly, does its job for the duration, and lifts away cleanly afterwards.

What should temporary hot works matting do?

Temporary hot works matting should lay down quickly without fixings, protect the floor beneath from sparks, spatter and hot debris for the duration of the job, and lift away afterwards without damaging or marking the surface it was protecting. It’s judged on the same fire performance as any other hot works matting — a “temporary” use doesn’t mean a lower bar for the classification.

What should I check before a temporary hot works job?

• Fire classification — confirm the product’s rating for the process involved; a short job doesn’t reduce the exposure while it’s happening.
• Size the zone to the real spark spread — not just the immediate work area; see our spark travel distance guide.
• Floor beneath the mat — check what’s under the protected area (combustible material, sensitive flooring, services) and whether extra precautions are needed regardless of the mat.
• Ease of laying and lifting — for repeated site visits, a mat that rolls or folds quickly saves setup time without compromising coverage.
• Permit requirements — confirm whether the job needs a hot work permit; see our permit and floor protection guide.

Common mistakes to avoid

• Using an undersized offcut of matting because it’s convenient to carry, rather than sizing to the actual spark zone.
• Leaving the surrounding floor unprotected because attention focused only on the immediate work point.
• Assuming a mat used for one job is still fit for the next — check for damage, holes or contamination between uses.
• Treating the mat as covering the permit requirement — it supports the permit’s conditions, it isn’t the permit.

No matting is fireproof, and portable matting for temporary hot works reduces risk within its rated limits rather than removing it. Suitability depends on the process, floor and site — always confirm this against your own risk assessment and permit conditions, not this guidance alone.

If you’re specifying matting for temporary or site-based hot works, tell us the process, typical job size, and how often it’s redeployed, and we’ll help match a suitable portable option. See temporary hot work floor protection and the wider hot works matting range, or get in touch.