Construction sites are among the highest fire-risk environments. We examine the fire safety planning requirements during the construction phase of major UK projects.. Construction Site Fire Risk Construction sites account for a disproportionate number of large fires in the UK. The combination of: Hot works (welding, cutting, soldering) Combustible materials (timber, insulation, packaging) Temporary electrical installations Limited fire protection (systems not yet commissioned) Transient workforce with varying safety awareness ...creates a perfect storm for fire incidents. CDM Regulations and Fire Safety The Construction (Design and Management) Regulations 2015 require: Principal Designer : Consider fire safety during construction in design decisions Principal Contractor : Develop and implement the Construction Phase Plan, including fire safety Contractors : Follow site fire safety rules and report hazards Construction Phase Plan — Fire Safety Elements 1. Site fire risk assessment 2. Hot works permit system 3. Temporary fire detection and alarm arrangements 4. Means of escape from the site 5. Firefighting equipment provision and locations 6. Emergency procedures and assembly points 7. Fire warden arrangements 8. Housekeeping and waste management 9. Storage of flammable materials 10. Liaison with local fire and rescue service Hot Works Management Hot works are the leading cause of construction site fires: Permit System Written permit required for all hot works Area inspection before, during, and after works Fire watch for minimum 60 minutes after completion Combustible materials removed or protected within 10m radius Suitable fire extinguisher within immediate reach Alternative Methods Cold cutting techniques where possible Mechanical fixing instead of welding Prefabrication off site in controlled conditions Adhesive bonding alternatives Temporary Fire Protection Detection and Alarm Temporary fire alarm system installed before combustible works begin System extended as building progresses vertically Manual call points at all escape routes Site wide alert system (sirens audible across all work areas) Escape Routes Temporary staircases maintained clear and lit Signage updated as construction progresses Emergency lighting in enclosed areas Regular escape route inspections (daily minimum) Firefighting Provisions Temporary dry risers or wet risers as building height increases Fire extinguishers at every hot works location Site hydrant or water supply for fire service use Access roads maintained for fire appliances (minimum 3.7m width) Protecting Completed Work One of the greatest challenges is protecting completed fire safety installations: Fire doors propped open by trades Fire stopping penetrated for additional services Sprinkler heads damaged by following trades Smoke detectors capped or covered Management Measures Fire door guardians and regular inspections Fire stopping handover protocols between trades Sprinkler system partial commissioning when practical Phased handover of completed sections JCT and NEC Fire Provisions Standard construction contracts include fire safety obligations: Contractor responsible for fire safety during construction Insurance requirements (Joint Fire Code compliance) Notification of fire incidents Access for fire service inspection For construction phase fire safety planning, contact Magnus Opifex.