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TEAM Talks: Staying Safe in the Heat – Indoors and Out

Get Summer-Ready: Staying Safe in the Heat – Indoors and Out

Tuesday 10th June, 2025

Illustration by TEAM Safety Services Ltd.


As seasonal temperatures begin to rise in the UK, it’s time to get serious about summer safety. Whether you’re managing a construction site, working in an office, maintaining stock, or carrying out repairs in high-rise buildings, hot weather brings real risks — and it’s not just sunburn.


Heat stress, dehydration, and sun exposure can lead to serious illness and impact productivity. If you are an employer, site manager, or health and safety lead, now is the time to review your summer risk controls.


The Risks of Working in Hot Weather


Hot environments — whether outdoor or indoor — can lead to:

  • Heat exhaustion or heat stroke.
  • Sunburn and skin damage.
  • Reduced concentration, leading to more mistakes and accidents.
  • Irritability and fatigue, which can affect morale and performance.

According to the Health and Safety Executive’s sun protection guidance, skin cancer caused by UV exposure is an increasing occupational health concern, particularly for those working outdoors in construction, roofing, roadworks, landscaping, and maintenance roles.

Illustration by TEAM Safety Services Ltd.


Summer Safety on Construction Sites & Outdoor Jobs


Outdoor workers are especially vulnerable to direct sunlight, UV radiation, and heat-related illness. Site managers and supervisors should:

  • Provide shaded rest areas where possible.
  • Encourage regular water breaks and keep hydration stations accessible.
  • Adjust work patterns by avoiding intense work during the hottest part of the day (usually 11am–3pm).
  • Enforce sun protection by encouraging the use of long sleeves, wide-brimmed hats, sunglasses, and SPF 30+ sunscreen where suitable.
  • Display UV index warnings and weather forecasts on site noticeboards.
  • Include sun safety in toolbox talks and inductions.

Remember: It’s not just heat you need to manage — UV damage is cumulative and long-term. The HSE makes it clear that employers have a duty of care to protect workers from the harmful effects of the sun.

Illustration by TEAM Safety Services Ltd.


Summer Safety Indoors – Offices, Housing, and Shared Buildings


Don’t assume your indoor teams are safe. Offices, high-rise flats, communal areas, and even temporary site cabins can become dangerously hot during the summer. Poor ventilation, direct sunlight, and outdated cooling systems all heighten the risk of heat stress indoors.


Indoor Heat Safety Tips:

  • Monitor indoor temperatures, especially in top-floor or south-facing spaces.
  • Encourage flexible dress codes where possible.
  • Provide PAT-tested fans or improve airflow by opening windows and increasing air circulation.
  • Remind staff and residents to stay hydrated, especially older or more vulnerable individuals.
  • Check that electrical appliances (such as fans and portable AC units) are PAT-tested and safe for use.
  • Review fire safety as hot weather can increase the risk of overheating equipment and poor waste disposal (e.g., cigarette ends, flammable aerosols).

Illustration by TEAM Safety Services Ltd.


Spotting Signs of Heat Stress


Whether someone’s laying bricks or answering emails, the symptoms of heat-related illness are serious. Be vigilant for:

  • Dizziness or fainting.
  • Muscle cramps.
  • Heavy sweating followed by clammy or dry skin.
  • Nausea, headaches, or confusion.

If you suspect someone has heat exhaustion or heat stroke, move them to a cool area, provide them with water, and seek medical advice immediately.

Illustration by TEAM Safety Services Ltd.


At TEAM Safety Services, we assist businesses in the construction, housing, and office-based sectors to remain compliant, safe, and supported all year round. For summer, we can help you with workplace risk assessments that include seasonal controls and fire safety reviews for high-risk periods.


Let’s make summer safer for everyone — in the sun, on site, or behind a screen.


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