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Learn about the various hazards involved in demolition work and the control measures to ensure safety and compliance with CDM Regulations 1994. From physical risks like falls and collapsing structures to chemical dangers like asbestos exposure, this guide covers essential safety protocols and best practices.
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Demolition Hazards & Control Measures
Remember! The CDM Regs 1994 apply to all demolition & dismantlement work
Hazards - Physical • Falling from height • Falls through openings & fragile materials • Uncontrolled/premature collapse • Noise • Flying debris • HAVS from tools • Whole body vibration from vehicles
Hazards - Physical • Cause nearby structures to collapse • Live services – gas, electric, water • Fire • Broken glass from windows • Unguarded machinery • Floods • Electric shock • Manual Handling
Hazards - Chemical • Dust • Asbestos • Silica • Residual contamination from previous use? E.g. hospitals, industrial processes
Controls • Risk Assessment • Competent, trained staff • Safe system of work (derived from RA) • PPE – helmets, boots, dust masks etc. • Safe demolition requires planning • Keep people as far away as possible • Use of method statements
Controls • Supervision by competent person • Where possible, demolish in reverse order of construction • Use CDM H&S file if available? • Protect machine cabs to guard against falling objects • Temporary props may be required to support unstable structures
Controls • Remove debris as it builds up to prevent floors/walls collapsing • Disconnect live services (although water may be required in event of a fire) • Remove hazardous materials • Provide site hoardings where necessary (about 2.5m high) • Do not allow materials to fall into area where people are
Controls • Fans or covered walkways may be needed to catch falling objects • Erect warning notices around hoardings • Remove window panes before demolition • Erect warning notices on doors, especially where floors have been removed
Controls • Damp area down with water • Dog-leg rubbish chutes, or barrier off skip area • Provide safe access & egress (especially where there are no floors) • High standard of housekeeping • Secure ladders • Use safety harnesses where necessary • Create a buffer zone around the demolition area