Employers must make sure indoor workplaces stay at a reasonable temperature, according to the Health and Safety Executive (HSE).

They also have to manage the risk of working outdoors in the heat.

Amid a potentially record-breaking heatwave in the UK, there is no maximum temperature for workplaces, but all workers are “entitled to an environment where risks to their health and safety are properly controlled”, the HSE says.

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The HSE says there’s no maximum temperature because workplaces with hot processes – like bakeries, glass works or foundries – would not be able to comply with the requirement.

They have other ways of controlling the effects of hot temperatures, the HSE said.

Employees are advised to discuss any concerns with their union representative, workplace representative or management.

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These are some other steps recommended by the HSE:

• removing layers of clothing
• using a desk or pedestal fan to increase air movement
• using window blinds (if available) to cut down on the heating effects of the sun
• drinking plenty of water but avoiding caffeinated or carbonated drinks
• working away from direct sunlight or sources of radiant heat
• taking regular breaks to cool down.

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Workers were told to talk to representatives or managers about policy changes such as:

• keeping windows open where possible, providing fans, switching off radiators and maintaining air conditioning units
• introducing flexible hours or early/late starts to help avoid the worst effects of working in high temperatures
• relaxing formal dress codes
• insulating hot pipes
• moving workstations away from hot pipes or machinery, or out of direct sunlight
• including assessments of thermal risk as part of workplace risk assessments.

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