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Fire and smoke behaviour

Studies and tests show that, due to its intrinsically self-extinguishing characteristics, PVC would produce very little smoke in a real fire situation, it is difficult to ignite and does not sustain combustion.

PVC does not contribute to flame propagation and does not generate flaming droplets.

Unlike odourless toxic gases, such as carbon monoxide that is by far the most hazardous element in a fire, the presence of hydrogen chloride generated by PVC combustion can be detected at totally harmless trace levels, due to its distinctive smell.

As such, the emission of HCl gas at an early stage of fire acts as a ‘warning’ signal to people to evacuate the area immediately.

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