A cordon should be set up around a stacked materials if there is a danger of collapse or of materials falling. The radius of the hazard area should be big enough so that debris from the collapse does not fall outside it.

Access into the cordon should be prevented altogether, or limited to essential tasks only. Anyone entering the cordon should be aware of the hazards and the signs of collapse so they can withdraw if necessary.

When establishing a safe system of work the following information will be needed, and any changes monitored:

• The size of the stack
• The materials included in the stack
• The density and stability of the stack
• The likely impact on the materials or the stability of the stack by:
  • The incident
  • Fire and rescue service activity
  • Current and forecast weather

Fire and rescue service personnel should exercise caution when working near stacked materials. Unless unavoidable, they should not walk on or across stacked materials, or work on the stack