Heat stress can occur wherever work operations involve heavy physical labour in hot, humid environments. The locations may be indoors or outdoors. Protective clothing can also contribute to the problem.

Heat stress causes the body's core temperature to rise. A series of disorders can develop, ranging from discomfort and pain (heat rash and heat cramps) to life-threatening conditions (heat exhaustion and heat stroke). An increase in heat can be from external sources that the worker may be in proximity to, for example, laying asphalt etc. Workers can also be at risk if they are not acclimated to the work conditions.

FAQs about Heat Stress

For answers to the most frequently asked questions about heat stress, visit the FAQs page.

• Where does heat stress occur in construction?
• What happens when the body's core temperature rises?
• How can we recognize heat stress disorders?
• What factors are used to assess heat stress risk?
• Are there measures for evaluating heat stress risk?
• How can heat stress be controlled?
• What are the responsibilities of workplace parties regarding heat stress?

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