The existing law on workplace temperature, the Workplace (Health, Safety and Welfare) Regulations 1992, places a legal obligation on employers to provide a ‘reasonable’ temperature in the workplace. A meaningful figure is not set out in regulations due to the factors, other than air temperature, which determine thermal comfort (for example, the radiant temperature, humidity and air velocity). These factors become more significant and the interplay between them more complex as the temperature rises.
Detailed guidance on workplace temperature and thermal comfort is available on the Health and Safety Executive (HSE) website. This includes how to undertake a thermal comfort assessment and measures that can be taken to improve thermal comfort.
The Government has no plans to bring forward proposals to set a maximum permitted working temperature.