As the British summer turns up the heat, construction sites across the UK face seasonal challenges that can seriously impact the health and safety of workers. While we might not have Mediterranean temperatures year-round, even moderate heat combined with physically demanding work can lead to dangerous conditions like heat exhaustion and dehydration.
Here’s what you need to know, and do, to keep yourself and your team safe this summer.
Understanding Heat Exhaustion
Heat exhaustion occurs when the body overheats due to excessive loss of water and salt through sweating. It can escalate quickly and lead to heatstroke, a medical emergency.
Signs of Heat Exhaustion
- Dizziness or fainting.
- Headache.
- Excessive sweating.
- Pale, clammy skin.
- Nausea or vomiting.
- Rapid heartbeat.
- Muscle cramps.
If left untreated, heat exhaustion can progress to heatstroke, which can be fatal. Immediate action is crucial.
Hydration: Your First Line of Defence
One of the simplest ways to prevent heat-related illnesses is proper hydration.
Tips to Stay Hydrated on Site
- Drink water regularly, not just when you feel thirsty. Aim for small amounts frequently throughout the day.
- Avoid caffeine and energy drinks, which can contribute to dehydration.
- Use electrolyte drinks when sweating heavily, especially on hot days or when doing strenuous work.
- Encourage a hydration culture; supervisors and team leads should remind workers to drink water and make it accessible at all times.
How Much Water is Enough?
On hot days, construction workers should aim to drink 250ml (half a pint) every 15–20 minutes; hat’s up to 1.5 litres an hour in extreme heat.
Practical On-Site Safety Tips
- Start Early, Finish Smart: If possible, schedule the most physically demanding tasks during cooler morning hours. Avoid intense work in the peak afternoon heat.
- Provide Shade and Rest Breaks: Ensure shaded rest areas are available, and encourage regular breaks to cool down.
- Wear Appropriate PPE: Use breathable, lightweight, and UV-protective clothing. Some hi-vis gear is designed specifically for hot weather conditions.
- Buddy System: Encourage workers to look out for each other. If someone shows signs of heat exhaustion, act fast.
- Training and Awareness: Make sure everyone on site knows the symptoms of heat-related illnesses and how to respond.
What to Do if Someone Shows Signs of Heat Exhaustion
- Move the person to a cool, shaded area.
- Have them lie down with legs raised.
- Remove any excess clothing or PPE.
- Give them water to sip slowly.
- Cool them down with a damp cloth or a fan.
- Monitor closely; if they don't recover within 30 minutes, call emergency services immediately.
Final Thoughts
A little preparation goes a long way in keeping construction sites safe during the summer months. With proactive planning, proper hydration, and awareness of the warning signs, we can all help prevent heat-related illnesses and ensure a productive, safe working environment.
Stay safe, stay hydrated, and look out for your mates on site.
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