There is no such thing as a heat wave day off—but employers have a responsibility
Even in summer temperatures, the following applies: “Heat-free” days, as in school, are not known in working life. Nevertheless, employers are legally obliged to ensure a healthy room temperature. This requirement arises from the Workplace Ordinance (ArbStättV), specified in more detail by ASR A3.5 “Room Temperature.”
When temperatures exceed 26°C in the room, measures must be taken to prevent further heating. These include, for example, early and effective ventilation of rooms, the use of sun protection systems (e.g., blinds), and switching off unnecessary heat sources. Relaxing the dress code can also help – provided this is compatible with occupational health and safety requirements.
When the room temperature reaches 30°C, there is a specific obligation to take action: effective measures must be taken to reduce the strain on employees. These include, for example, the use of fans, adjusting working hours (e.g., flexitime), moving strenuous activities to cooler times of the day, and organizational break arrangements.
If the temperature rises above 35°C, workspaces are no longer suitable for work without additional protective measures. In this case, activities may only be carried out there if special protective measures are implemented, such as heat-protective clothing or significantly reduced working hours with regular rest periods.
Important: Even in extreme heat, occupational safety remains a priority. Safety or protective clothing, e.g., in laboratories, must continue to be worn if required for the task at hand. Ideally, flexitime should be used to shift working hours to the cooler morning or evening hours—provided that the work tasks allow this.
Auto: PATRIK SIEVERT