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
| Feb 9, 2012
Rapid growth of zero energy buildings expected
Much of that growth will be in the European Union, where near-zero energy buildings are mandated by 2019 for public buildings, and by 2021 for all construction.
| Feb 9, 2012
Stiffer OSHA fines put strain on Kansas contractors
A fine for a violation that once cost between $750 and $1,200 now runs $7,000 or more per incident, according to a state industry association official.
| Feb 9, 2012
Webinar focuses on lessons learned from LEED-certified industrial project
A Construction Specifications Institute webinar will focus on the lessons learned through the design and construction of a LEED-certified industrial project, Better Living Mill Shop, the first industrial building in Central Virginia to earn LEED certification.
| Feb 8, 2012
California likely to eliminate redevelopment agencies
Leaders of California cities had been trying to fashion a compromise with lawmakers after the state Supreme Court ruled the state had the authority to eliminate the agencies and use their property tax money for local services.
| Feb 8, 2012
Project aimed at economical seismic retrofits on historic Memphis structures
The group will develop a low-cost seismic retrofit model that would benefit aging brick-and-mortar structures. It involves bolting steel brackets to existing wooden floor and ceiling joists.
| Feb 8, 2012
Houston signs on to Better Buildings Challenge
The challenge has about $4 billion in federal and private-sector funds, which it will use for building energy upgrades nationwide in the next two years.
| Feb 8, 2012
OSHA offers free health and safety consulting for small businesses
The consultants offer confidential, non-punitive advice.
| Feb 8, 2012
Controversy over pay for prisoners on roofing job in Michigan
The disagreement was over whether the prisoners should have been paid prevailing wage for their brief time on the job because the project was paid for with a U.S. Department of Energy grant.
