There is no single legal maximum temperature that stops all work, as felt heat depends on humidity, airflow, and workload. However, specific thresholds and mitigation rules apply depending on your region and industry:
Alberta's Occupational Health and Safety (OHS) Code does not set a specific maximum workplace temperature where work must stop. Instead, it requires employers to: Identify hazards (including extreme heat) Assess the risks.
Am I protected in law if I leave work or refuse to attend work because I am too hot? In sum, not necessarily. If you and your colleagues are too hot at work, your priority should be to notify the employer and insist that they act to reduce the risks.
What temperature can I refuse to work in? There is no strict law saying you can refuse to work at a specific temperature. However, if temperatures create a serious health risk, you should raise this with your manager or Health and Safety Representative.
Answer: OSHA does not require employers to provide heat or air conditioning for work spaces. OSHA does recommend temperature control in the range of 68-76°F.
There's no law for maximum working temperature, or when it's too hot to work, because every workplace is different. No meaningful upper limit can be imposed because in many indoor workplaces high temperatures are not seasonal but created by work activity, for example in bakeries or foundries.
You have to take care of yourself when it gets hot. If your boss won't do what is necessary to protect you and your fellow employees, it may be necessary to leave work. The reality is that there are no hard and fast rules regarding workplace heat on the federal level.
There's no law for minimum or maximum working temperatures, for example when it's too cold or too hot to work. However, guidance suggests a minimum of 16ºC or 13ºC if employees are doing physical work. There's no guidance for a maximum temperature limit.
All employees should stay home if they are sick until for at least 24 hours, both are true: their symptoms are getting better overall and they have not had a fever* (temperature of 100 degrees Fahrenheit or 37.8 degrees Celsius or higher) and are not using fever-reducing medication (e.g., medicines that contain ...
It depends in the type of work, but research indicates that the comfort zone is between 16-24 °C. Working above this level carries increased risks of heat exhaustion. This can cause dizziness, nausea and fainting, and ultimately heatstroke.
There is no specific legal maximum working temperature in Alberta, so there is no exact degree at which you are automatically allowed to leave. Under Alberta Occupational Health and Safety laws, employers must protect workers from excessive heat by conducting hazard assessments and implementing controls (such as mandatory shade, cooling breaks, and water).
Scientific studies confirm that indoor temperature can significantly impact on productivity and most performing 'comfort zone' lays between 22° C and 25° C4.
Can I Refuse to Work If It's Too Hot? Yes. Under the OHSA, you have the legal right to refuse unsafe work—including work that puts your health at risk due to extreme heat.
OSHA understands that a comfortable temperature for one person might be too hot or too cold for another. Because of this, they cannot designate one specific workplace temperature; however, OSHA does have some workplace temperature regulations, stating that employers set the thermostat between 68 and 78 degrees.
When a heated glass is suddenly cooled, it shatters. Why? When things are not free to expand, they end up developing stress, called thermal stress.
What Temperature Should I Leave My House While at Work? If you're out of the house for most of the day, it's a good idea to adjust your thermostat to save energy. The ideal setting while you're at work is about 62°F to 66°F (17°C to 19°C).
The ideal office temperature for sedentary work ranges from 𝟐𝟎°𝐂 to 𝟐𝟔°𝐂 (𝟔𝟖°𝐅 to 𝟕𝟖°𝐅), with most guidelines recommending an optimal sweet spot of 𝟐𝟏°𝐂 to 𝟐𝟑°𝐂 (𝟕𝟎°𝐅 to 𝟕𝟑°𝐅). This keeps employees comfortable without causing fatigue or distraction.
The ideal, generally comfortable room temperature for most people is 68°F to 72°F (20°C to 22°C). While this range is recommended for daytime comfort, slightly lower temperatures (around 60-70°F or 15-21°C) are better for sleep, and some may prefer a warmer environment during winter.
A toxic culture often fosters an environment of constant pressure and unrealistic expectations, leading to chronic stress among employees. This persistent stress can have detrimental effects on both mental and physical health.
Seven tips to survive a hot day at work
There are various informal guides to safe working temperatures, and generally, the acceptable zone of thermal comfort for most types of work lies between 16 degrees C - 24 degrees C (about 61 - 72 F).
Yes, humans can survive 40°C (104°F), but how they handle it depends heavily on the humidity and whether they can access water and shade. The body is highly resilient, but prolonged exposure in extreme conditions can quickly lead to life-threatening heatstroke.
By 2050, global average temperatures are projected to rise by about 𝟏.𝟓°𝐂 to 𝟐.𝟓°𝐂 above pre-industrial levels. Even under ambitious emission reduction targets, scientists warn that the globe will likely exceed the 1.5°C threshold by mid-century, leading to more intense heatwaves, severe droughts, and erratic weather patterns worldwide.
The threshold for a heat wave occurs when there are at least three days above 25 °C (77 °F) across much of the country. Greater London has a threshold of 28 °C (82 °F). In Ireland, a heat wave is defined as temperatures exceeding 25 °C (77 °F) for five or more consecutive days.