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
| May 19, 2014
Construction skilled-worker shortage causing rise in claims
The improved economy has boosted construction starts, but a shortage of experienced trade workers has led to more on-the-job injuries and construction defects.
| May 15, 2014
AISC Prequalified Seismic Moment Connection standard update now available
The AISC standard Prequalified Moment Connections for Special and Intermediate Steel Moment Frames for Seismic Applications (ANSI/AISC 358-10) has been updated with a second supplement, ANSI/AISC 358s2-14.
| May 15, 2014
ConsensusDocs releases new agreements for contractors who hire consultants
ConsensusDocs has released the new ConsensusDocs 746 Constructor & Geotechnical Consultant Agreement and the 747 Constructor & Consultant Agreement.
| May 8, 2014
Report: Top storm-resilient cities have high adaptive capacity
The most resilient cities in the world, including five in the U.S., have attributes that would enable them to recover better than others from devastating natural disasters.
| May 8, 2014
LED lighting helps cities receive Energy Star designation
Thanks largely to an ambitious program to boost the use of LED lighting in its buildings, Los Angeles is the top ranked U.S. city on the Environmental Protection Agency’s annual list of U.S. cities that are doing the most to improve energy efficiency.
| May 8, 2014
Door knob code revisions generating controversy
The City of Vancouver’s ban on doorknobs in all new buildings, which went into effect last month, has drawn a strong reaction from the public and heated debate across Canada as other jurisdictions consider the measure.
| May 8, 2014
Structural concrete code revisions open for public comments
The American Concrete Institute’s completely reorganized ACI 318-14, “Building Code Requirements for Structural Concrete and Commentary,” is open for public review for a 45-day period.
| May 3, 2014
Controversy rages over cost, benefits of proposed OSHA silica dust rule
Introduced in August 2013, the proposal would lower allowable levels of crystalline silica in all workplaces, standardize how the dust is calculated, and require medical monitoring for employees exposed to high levels.
| May 3, 2014
California’s Title 24 promises to reshape the construction industry
California’s recent revisions to Title 24 contain ambitious performance goals: all residential buildings must be Zero Net Energy by 2020 and commercial buildings must reach that standard by 2030.
| Apr 30, 2014
House Appropriations Committee approves $3 billion cut for military construction
The Army would see the sharpest cuts on a percentage basis, with a $578 million, or 52% reduction in FY 2015.