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
| Sep 7, 2012
Lorain, Ohio considers halting downtown construction while it works out development plan
Construction would stop downtown for six months while Lorain, Ohio officials consider a development plan for the city, according to new legislation.
| Sep 7, 2012
Business, labor groups push for easing of California’s Environmental Quality Act
Business and labor groups have combined forces to push for a change to California's Environmental Quality Act, specifically its complex review process for building and construction projects.
| Sep 7, 2012
Twenty years later, Florida contractors cite Hurricane Andrew as construction game-changer
Remarking on the 20th anniversary of Hurricane Andrew, which devastated south Florida; contractors are noting the storm’s impact on their industry—including the state’s adoption of tougher building codes.
| Sep 7, 2012
At risk for nine types of natural disasters, Texas trails most coastal states on building codes
Texas has the most diverse weather risk in the country, with exposure to nine different types of natural disasters.
| Aug 30, 2012
OSHA plans new crane-safety standards for demolition and underground work
The new rule will streamline OSHA’s standards by eliminating the separate cranes and derricks standard currently used for underground and demolition work.
| Aug 30, 2012
Federal government cancels defense contracts worth $2.15 billion
This action may foreshadow federal spending cuts scheduled for year's end if Congress takes no action on the federal budget.
| Aug 30, 2012
Public comment period is open for CRRC-1 standard
The CRRC-1 standard covers specimen preparation and test methods for measuring the initial and aged solar reflectance and thermal emittance of roofing products.
| Aug 30, 2012
LEED system's footprint reaches 2 billion sf, with 7 billion sf in the pipeline
About 7 billion more sf of commercial space is expected in the pipeline.
| Aug 30, 2012
Georgia drops LEED wood source standard on state projects
Currently, LEED green building standards only accept timber products certified by the Forest Stewardship Council (FSC).
| Aug 21, 2012
AGC offers second edition of the Federal Government Contractor: Ethics & Compliance Programs manual
This publication helps contractors appreciate the grounds for an alleged violation of the expected standards of business conduct and ethics, and to develop, implement, and document an effective ethics and compliance program.