A refusal to work due to extreme temperatures in Alberta occurs when an employee exercises their legal right under the Occupational Health and Safety (OHS) Act to stop working because severe heat or cold creates an undue hazard. Whether you are on a frozen Fort McMurray oil rig in January or pouring concrete in Calgary in July, Alberta law strictly protects you from dangerous weather conditions. However, your right to walk off the job is based on a legal hazard assessment, not a specific number on the thermometer.

If your employer is forcing you to work in dangerous conditions, or punishing you for speaking up about the temperature, you need to understand exactly how to legally protect your health and your job.


What Temperature Can You Refuse to Work in Alberta?

There is no specific legal temperature limit (such as +35°C or -30°C) written into Alberta law that automatically gives you the right to stop working.

Instead of a specific number, Alberta OHS law uses a hazard assessment standard. You have the legal right to refuse to work when the extreme heat or extreme cold creates an “undue hazard” or an imminent danger to your health and safety. What constitutes a danger depends heavily on the specific job, the physical exertion required, the protective clothing worn, and the individual worker’s acclimatization.


Employer Obligations for Extreme Weather

Under the OHS Act, Alberta employers have a strict legal duty to identify weather-related hazards and take reasonable steps to eliminate or control them. They can’t legally force you to simply “tough it out.”

What About Indoor Workplaces?

While outdoor workers (like construction, agriculture, and oil & gas employees) face the highest risks, indoor workers are also protected. If a warehouse loses heating in the winter, or a restaurant kitchen’s air conditioning fails during a summer heatwave, the employer must still step in.

⚠️ If the indoor temperature poses a danger to your health, your employer must provide localized cooling fans, portable heaters, or adjust the dress code.

How to Refuse Unsafe Work in Extreme Temperatures

If the heat or cold becomes a danger and your employer refuses to mitigate it, you have a protected legal right to refuse the unsafe work. However, you must follow the correct legal process:

  1. Notify Your Employer Immediately: You can’t just leave or abandon the job site. You must tell your supervisor exactly why you believe the temperature makes the work unsafe.
  2. The Investigation: Your employer must inspect the hazard (ideally with a health and safety representative).
  3. Stay Available: While the investigation occurs, you must remain at the workplace (in a safe, temperature-controlled area). Your employer has the right to reassign you to other safe duties during this time.
  4. Call OHS: If your employer demands you return to the dangerous conditions and you still feel unsafe, you can contact Alberta Occupational Health and Safety. An OHS officer will intervene and make a binding, final decision.

Fired for Refusing to Work? Your Severance Rights

One of the most frequent issues employees face is illegal retaliation.

It is completely illegal for an Alberta employer to fire, suspend, demote, or dock the pay of an employee because they exercised their right to refuse unsafe work due to extreme heat or cold. This is known as a reprisal.

⚠️ If your employer fires you or cuts your shifts because you spoke up about dangerous temperatures, you have likely been wrongfully dismissed.

Talk to an Alberta Employment Lawyer

If you have been fired, disciplined, or forced to resign because you refused to work in dangerous weather conditions, do not walk away empty-handed.

The Alberta employment lawyers at Samfiru Tumarkin LLP have helped tens of thousands of non-unionized workers across Alberta. We can review your case, hold your employer accountable for illegal reprisals, and negotiate the maximum severance package you are legally owed.

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