Schools lack legal temperature limits as heat-related incidents rise

Students and teachers have fainted during periods of extreme heat at schools across the country, according to reports the BBC gathered from affected institutions.

The incidents highlight a gap in British education law: no statute establishes maximum indoor temperatures for school buildings or requires schools to close when heat reaches dangerous levels. This contrasts with regulations for workplaces, which mandate that employers maintain temperatures below 30.1 degrees Celsius when workers perform sedentary tasks.

Schools operate under health and safety guidelines that require administrators to maintain "reasonable" temperatures, but the term lacks definition and carries no enforcement mechanism tied to specific numerical thresholds. When students or staff collapse from heat exposure, schools cannot point to a legally binding standard that triggered closure or early dismissal.

Education officials have issued guidance recommending that schools remain open unless temperatures make buildings unsuitable for occupancy, but they provide no objective measure for that determination. Head teachers and administrators must make closure decisions case by case, often without clear authority to dismiss students early or send staff home.

During recent heat waves, some schools reported that hallways and classrooms reached temperatures exceeding 35 degrees Celsius. Students studying in these conditions experienced dizziness, nausea, and in documented cases, loss of consciousness. Teachers reported difficulty concentrating and delivering lessons while managing heat stress themselves.

Parents and education unions have urged lawmakers to establish statutory temperature limits for schools, arguing that children and staff deserve protections at least equivalent to those afforded to office workers. They point to rising summer temperatures and longer heat events as evidence that existing informal arrangements no longer suffice.

School administrators countered that closure decisions require balancing multiple factors beyond temperature, including childcare needs for working families and disruption to the academic calendar. Some argued that retrofitting older school buildings with air conditioning systems would require substantial capital investment that local education authorities lack.

Meanwhile, schools in other European nations operate under specific temperature thresholds. In France, regulations require schools to close when interior temperatures exceed 32 degrees Celsius. German standards mandate classroom temperatures remain between 20 and 25 degrees Celsius during normal operations.

The BBC reviewed incident reports from more than 20 schools where students or staff sought medical attention for heat-related illness during the past three years. In several cases, schools did not dismiss students early despite interior temperatures exceeding 34 degrees Celsius, citing unclear authority to override the academic calendar.

Education leaders acknowledged the problem during interviews but said statutory temperature limits would require parliamentary action. Department for Education officials stated they monitor the issue and have asked schools to implement heat management protocols, including identifying cool spaces where students can rest and ensuring adequate water access.

Some schools have begun independent measures, including installing portable air conditioning units in classrooms, scheduling lessons during cooler morning hours, and establishing guidelines for outdoor recess suspension when heat reaches unsafe levels.

The National Association of Head Teachers called for government clarity on when schools should close during heat events, saying administrators currently operate in "legal ambiguity" that exposes them to liability if students suffer heat illness.