Building Bulletin 100 sets the fire safety standard for UK schools. We examine the requirements, common compliance gaps, and the impact of the Building Safety Act on educational premises.. BB100: The School Fire Safety Standard Building Bulletin 100 (BB100) is the Department for Education's fire safety design guide for schools. Updated in 2023, it provides comprehensive guidance that goes beyond Approved Document B for educational buildings. Key BB100 Requirements Compartmentation School buildings divided into compartments not exceeding 800m² Halls, gymnasia, and swimming pools as separate compartments Kitchens (commercial scale) as separate compartments Server rooms and IT suites separated from teaching areas Means of Escape Maximum travel distances: 18m (single direction), 45m (alternative directions) Minimum corridor widths based on occupancy External escape routes acceptable for ground floor classrooms Special provisions for assembly halls and dining areas Detection and Alarm Minimum L3 system (detection in escape routes) L2 recommended (detection in escape routes + high risk areas) L1 for residential schools (sleeping accommodation) Zoned to identify fire location Visual alarm devices in high noise areas (workshops, music rooms) Sprinklers BB100 recommends sprinklers for: All new build schools Schools in areas of high arson risk Schools with residential accommodation Special schools for vulnerable children Note: DfE mandates sprinklers in most new school projects funded by government. RAAC and Structural Concerns The Reinforced Autoclaved Aerated Concrete (RAAC) crisis has highlighted structural fire safety: RAAC panels may fail earlier in fire than designed Reduced fire resistance compared to original specification Survey programme across entire school estate Temporary propping and monitoring where RAAC identified Fire strategy review required for affected buildings Arson: The Dominant Threat Arson accounts for the majority of significant school fires: External security : Fencing, lighting, CCTV Bin storage : Away from buildings, in locked compounds Combustible materials : Remove from building perimeter Intruder detection : Out of hours alarm systems Community engagement : Reporting suspicious activity Special Educational Needs Schools for children with special needs require enhanced provisions: Personal Emergency Evacuation Plans (PEEPs) for each child Enhanced staffing for evacuation Evacuation equipment (chairs, sledges) at each stairway Refuge areas on upper floors Communication systems for sensory impaired children Behaviourally informed evacuation procedures Maintained vs Academy Schools Local Authority Maintained Schools Local authority as Responsible Person LA fire safety team typically manages compliance Centralised procurement of fire safety services Academy Trusts Trust as Responsible Person May lack fire safety expertise in house ESFA (Education and Skills Funding Agency) oversight Variable compliance standards across trusts For school fire safety consultancy, contact Magnus Opifex.