Fires need an ignition source: a form of heat that can set fire to flammable materials nearby. If rubbish is allowed to accumulate, or solvents and paints are left open, they will create a dangerous environment that could be set on fire by any of the following sources of ignition.
- Naked flames.
- Sparks from cutting activities.
- Overheating of power tools and electrical equipment.
- Gas or electric heaters.
- Smoking, or discarded matches or cigarettes.
- Overheating of lights (particularly halogen).
Bonfires are not allowed on site, unless the site has a permit.