Recent research that looks at the method used to determine thermal comfort in ANSI/ASHRAE Standard 55 published in an article, “Energy Consumption in Buildings and Female Thermal Demand,” in Nature Climate Change, misinterpreted data, according to ASHRAE.
“The interpretation of the authors regarding the basis for Standard 55 is not correct,” Bjarne Olesen, Ph.D., a member of the ASHRAE Board of Directors, thermal comfort research and former chair of the Standard 55 committee, said. “The part of the standard they are referring to is the use of the PMV/PPD index. This method is taken from an ISO/EN standard 7730, which has existed since 1982. The basic research for establishing comfort criteria for the indoor environment was made with more than 1,000 subjects with an equal amount of women and men.
“In the main studies, where they did the same sedentary work and wore the same type of clothing, there were no differences between the preferred temperature for men and women. So the researchers’ finding of a lower metabolic rate for females will not influence the recommended temperatures in the existing standards. Also their study is not conclusive. They only studied 16 females at a sedentary activity.
“They should also have studied 16 men at the same activity to be able to compare. The reason why we, in some field studies, find that women prefer higher room temperature than men is attributed to the level of clothing. Women better adapt their clothing to summer conditions while men are still wearing suits and ties. So if the thermostat is set to satisfy the men, the women will complain about being too cold. In the standard, this adaption of clothing to summer is taken into account. So if the standard is followed, the women would be satisfied; but maybe not the men.”
Related Stories
| Jan 9, 2015
Technology and media tenants, not financial companies, fill up One World Trade Center
The financial sector has almost no presence in the new tower, with creative and media companies, such as magazine publisher Conde Nast, dominating the vast majority of leased space.
| Jan 8, 2015
The future of alternative work spaces: open-access markets, co-working, and in-between spaces
During the past five years, people have begun to actively seek out third places not just to get a day’s work done, but to develop businesses of a new kind and establish themselves as part of a real-time conversation of diverse entrepreneurs, writes Gensler's Shawn Gehle.
Smart Buildings | Jan 7, 2015
Best practices for urban infill development: Embrace the region's character, master the pedestrian experience
If an urban building isn’t grounded in the local region’s character, it will end up feeling generic and out-of-place. To do urban infill the right way, it’s essential to slow down and pay proper attention to the context of an urban environment, writes GS&P's Joe Bucher.
| Jan 6, 2015
Construction permits exceeded $2 billion in Minneapolis in 2014
Two major projects—a new stadium for the Minnesota Vikings NFL team and the city’s Downtown East redevelopment—accounted for about half of the total worth of the permits issued.
| Jan 2, 2015
Construction put in place enjoyed healthy gains in 2014
Construction consultant FMI foresees—with some caveats—continuing growth in the office, lodging, and manufacturing sectors. But funding uncertainties raise red flags in education and healthcare.
| Dec 28, 2014
Robots, drones, and printed buildings: The promise of automated construction
Building Teams across the globe are employing advanced robotics to simplify what is inherently a complex, messy process—construction.
| Dec 28, 2014
AIA course: Enhancing interior comfort while improving overall building efficacy
Providing more comfortable conditions to building occupants has become a top priority in today’s interior designs. This course is worth 1.0 AIA LU/HSW.
| Dec 28, 2014
10 key design interventions for a healthier, happier, and more productive workplace
Numerous studies and mountains of evidence confirm what common sense has long suggested: healthy, happier workers are more productive, more likely to collaborate with colleagues, and more likely to innovate in ways that benefit the bottom line, writes Gensler's Kirsten Ritchie.
| Dec 28, 2014
Workplace design trends: Make way for the Millennials
Driven by changing work styles, mobile technology, and the growing presence of Millennials, today’s workplaces are changing, mostly for the better. We examine the top office design trends.
| Dec 27, 2014
7 ways to enhance workplace mobility
The open work environment has allowed owners to house more employees in smaller spaces, minimizing the required real estate and capital costs. But, what about all of their wireless devices?