Business Operations

Is Your Business Ready for the Next Heatwave?

By Michaël Thibault January 30 2019

Summers are now synonymous with heatwaves. There’s no escaping it.


Even short heatwaves present risks that too few businesses are aware of, and against which they fail to take action to protect their employees. The good news is that there are simple and cheap solutions that allow you not only to limit productivity losses and protect employees, but improve team morale and make you stand out as a manager.

Heat… what?

Heatwaves are defined as periods of intense heat (i.e., above 30 °C) that last three or more consecutive days. These episodes are generally characterized by clear skies that offer no respite from the sun, a high humidity ratio that makes outdoor activities more difficult, and sometimes violent thunderstorms in the evenings. Under these conditions, workers are exposed to a number of hazards, including:

  • Exhaustion and drowsiness
  • Nausea and vomiting
  • Headaches
  • Fainting
  • Extreme thirst
  • Sunstroke (heatstroke)

All of these symptoms can also affect employees psychologically, rendering them less productive, as well as provoke anxiety, anger, and disinterest. This is understandable: few people are willing to give their 110% when it’s already a struggle just to be there.

Helping Employees Beat the Heat

Evaluate the Environment and Its Risks

The first thing to do is always to take a critical look at the work environment and the tasks to be done. Start by identifying potential risks and their severity, so you can address them in advance. For example, a work environment with air conditioning and readily available cold water probably won’t put staff too much at risk. But a business where employees have to do physical work outside may present more risks.

Promote Comfort

There are many advantages to promoting comfort, both for your employees and for yourself. For starters, employee productivity will typically go up. It goes without saying that certain tasks are much more difficult, sometimes even impossible, when the environment makes it hard to move and breathe. Greater comfort also helps avoid accidents.

If you fear that such accommodations will beget additional costs, think of what an employee fainting would cost you.

You’ll additionally build a reputation as a manager who really cares about their employees’ wellbeing. You could, for example, equip your registers with fans or hand out good old Mr. Freezes after lunch. If the environment allows, you can also relax your dress code for a while if it doesn’t normally allow for shorts.

Stay hydrated

Always provide employees with a readily accessible source of water, such as a cooler. Sources of shade, like parasols and tarps, can also help tackle dehydration and prevent sunburns. In general, during an eight-hour shift, the average person should drink at least 650 ml of water. Physical activities and heat can easily double these needs, depending on the individual. This being said, calculations are unnecessary: the best indicator is simply to check in with your thirst.

Limit Heat Exposure

It could be wise to split the shifts of employees who work outdoors (e.g., waiters on a terrace) so they can switch places with those who work indoors. Your schedules could also have built-in short breaks at regular intervals, according to the work to be done.

Stay Alert and Respect People’s Limits

Regardless of your strategy, make sure you always ask your supervisors and employees to stay alert to any sign of exhaustion, especially if you have older employees. Finally, note that employees are always entitled to decline to do something that can be hazardous to their health, per the Act respecting industrial accidents and occupational diseases.


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