Does PMV unnecessarily restrict natural ventilation in buildings?

In this paper, a global map of maximum indoor operational temperatures of buildings is presented. Maximum indoor operational temperatures were evaluated around the world using both PMV and ATC. It is found that utilising ATC to establish a building’s design comfort temperatures gives a higher acceptable indoor operative temperature compared to PMV and thus widens the potential temperatures for the use of natural ventilation in buildings while not compromising their ability to provide comfort for adapted populations, suggesting that PMV does unnecessarily restrict the use of natural ventilation for comfort cooling. It is found that using CIBSE TM52, 100% of Europe can utilise the ATC. If ASHRAE 55-2013 standard is used, 97.1% of global locations can use ATC. It was also found that 89% of global weather files have a temperature difference between ATC and PMV of between 5K and 9K.