Removing an asbestos cement flue or duct

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1 Use the right kit
  • Wear a disposable, correctly fitted FFP3 face mask and Type 5 disposable overalls
  • Wear the overalls one size too big and put the legs over the top of footwear
  • Do not re-use disposable overalls and masks
2 Keep dust down
  • Mix 8 parts water with 1 part washing up liquid in a garden sprayer
  • Dampen areas with loose bits of asbestos cement. Pick up large pieces and put them in a plastic sack
  • Wipe the surface clean with a damp cloth. Put the used cloth in the plastic sack
  • Cover work area with plastic sheets secured with tape to help catch waste
  • Make sure the equipment using the flue / duct is turned off. If the flue / duct is hot, wait for it to cool down
  • Dampen the flue / duct, particularly around the joints and fixings
  • If possible, undo the fixings and remove without damaging the asbestos cement
  • Put the fixings into a plastic sack
  • Wrap duct tape around any damage and remove each section in one piece
  • If not possible, wrap the duct / flue in plastic sheet and secure with duct tape. Gently break it into large pieces with a hammer
  • The remaining seal may be asbestos rope or string Dampen it and carefully lift away
  • Put the flue / duct and rope / string into a plastic sack. If it does not fit, double wrap in plastic sheet and seal with duct tape
  • Replace the duct / flue with a non-asbestos one
  • Any work on a flue being used for a gas-fired appliance must be carried out by a registered gas engineer. Make sure you are not covering over a flue that may be used in future and remove any debris that drops inside the flue. Blocking a flue can be fatal
3 Clean up properly
  • Use a damp cloth or Class H vacuum cleaner with a special filter to clean up
  • Do not use a domestic vacuum cleaner or a brush as these will spread asbestos fibres into the air
  • Double bag all waste including masks, overalls, cloths and plastic sheets in plastic sacks, seal with tape and label as asbestos waste
  • Contact the local tips in your area to find one that accepts asbestos waste
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