f2wohf
Honorary Master
- Joined
- Apr 15, 2014
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Every hot works permit I have worked on has a clear requirement to have a fire watchman, that stays behind an hour after the hot works have been completed.
This is because some works may have led to a spark that has ignited a source which has a slow burn that only becomes visible some time later.
it is common practice and stipulated in various fire policies.
So it is possible for the fire to have only become quite visible sometime after the works had been completed.
An architect from the French heritage agency said on TV yesterday that it has sometimes seen fires starting up to 8 hours after the hot works stopping and that it’s almost impossible to detect.
He was citing it as the reason for Nantes’ cathedral fire.