Will it be too hot to work this week?
Probably not because unfortunately, the Workplace (Health, Safety and Welfare) Regulations 1992 do not stipulate what the maximum or minimum temperature should be but they do state that the temperature in the workplace should be ‘reasonable’.
If you feel the temperature is unreasonable and there is something your employer could do to help, you should complain to your employer, especially if you are suffering due to a disability or are pregnant.
Does my employer legally have to have air conditioning in our building?
No, there is no requirement for a building to have air conditioning.
Does my employer have to relax our dress code when the weather is extreme?
There is no obligation for them to however they need to act reasonably so to avoid causing a risk to health.
You should firstly check your employee handbook or contract to see what these say about dress code.
You should be encouraged to keep hydrated and wear cool comfortable clothing, providing fans if possible and practicable.
Could I sue my employer if the working environment is too hot?
A personal injury claim could potentially arise if you become injured due to an unsafe working environment.
If the workplace becomes or is prone to extreme fluctuations in temperature, the employer should conduct a risk assessment, according to HSE guidelines. Similarly, if a significant number of employees complain about the working conditions, a risk assessment should be carried out. A risk assessment alone is not enough. The employer should act on the findings of the risk assessment and inform employees as to whether any remedial action is required.