Construction Safety in Freezing Weather Conditions
With the current freezing temperatures, construction work has become even more hazardous. When the body cannot warm itself, cold-related stress may occur. Four factors contribute to cold stress: cold air temperatures, high-velocity air movement, dampness, and contact with cold water or surfaces. A cold environment forces the body to work harder to maintain its temperature, as cold air, water, and snow draw heat from the body. Wind chill combines air temperature and wind speed, further increasing the risk.
Key Areas Affected by Extreme Cold
Work at Height: Platforms, roof work, and other elevated areas become more hazardous with ice or snow. The risk of falls increases due to slips. Only undertake this work if absolutely necessary, and ensure additional controls are in place, such as checking all platforms and fall protection, and de-icing work areas.
Slips, Trips, and Falls: Icy conditions significantly increase these risks. Clear walkways of ice and snow regularly, and use grit or salt. Avoid leaving hoses running, as excess water can freeze and create additional hazards.
Construction Plant Operation: Exercise caution when accessing or exiting construction equipment, as steps and handholds may be icy. Wheel grip can be compromised, leading to potential loss of vehicle control.
Welfare Facilities: Ensure adequate welfare facilities are available, including areas where workers can warm up, change or dry clothes, and get hot beverages.
Cold Temperature Exposures, Injuries, and Controls
- Proper Clothing/PPE: Wear appropriate clothing for cold weather, typically in three or more layers. Protect the head, hands, and feet with proper layering.
- Hydration: Drink plenty of fluids, preferably warm, sweet beverages. Thirst is suppressed in the cold, increasing the risk of dehydration.
- Caloric Intake: Increase calorie intake when working in cold environments, as heavy, protective clothing and cold conditions require more energy.
- Warm-Up Schedule: Implement a work warm-up schedule with periodic breaks.
- Avoid Exhaustion: Avoid working in the cold if you are exhausted or immobilised, as these conditions can accelerate the effects of cold weather.
- Engineering Controls: Use heaters where practical, shield work areas from winds, and use insulating materials on equipment handles.
- Optimal Timing: Select the warmest hours of the day for outdoor activities and minimise activities that reduce circulation.
- Employee Education: Educate employees on the symptoms of cold-related stress, such as heavy shivering, severe fatigue, and drowsiness.
- Buddy System: Work in pairs to monitor each other and provide quick assistance in emergencies.
By following these guidelines, you can help ensure the safety and well-being of construction workers in freezing weather conditions. Stay safe and stay warm!
