ASHRAE recently published the updated 2017 Version of Thermal Comfort Standard Standard 55-2017.
The update of the 2013 edition includes a new section with calculations from direct solar radiation. ANSI/ASHRAE Standard 55-2017, Thermal Environmental Conditions for Human Occupancy, simplifies the language of the 2013 standard and clarifies the three comfort calculation approaches in Section 5.3.3, "Elevated Air Speed."
The 2017 edition includes the new requirement to calculate the change in occupants' thermal comfort from direct solar radiation. Other additions include simplification of Appendix A to a single procedure for calculating operative temperature; clearly stated requirements and calculation procedures appearing sequentially; an update to the scope to ensure the standard is not used to override health, safety; critical process requirements; and removal of permissive language.
The ANSI/ASHRAE Standard 55-2017 is available for $89 for ASHRAE members for $105 for non-members.
Related Stories
Codes and Standards | Mar 10, 2022
HOK offers guidance for reducing operational and embodied carbon in labs
Global design firm HOK has released research providing lab owners and developers guidance for reducing operational and embodied carbon to meet net zero goals.
Codes and Standards | Mar 7, 2022
Late payments in the construction industry rose in 2021
Last year was a tough one for contractors when it comes to getting paid on time.
Codes and Standards | Mar 7, 2022
Massachusetts proposed energy code changes don’t ban gas
Proposed changes to the Massachusetts energy code would provide incentives for builders to fully electrify buildings, but not impose a ban on natural gas hookups.
Codes and Standards | Mar 4, 2022
Construction industry faces a 650,000 worker shortfall in 2022
The U.S. construction industry must hire an additional 650,000 workers in 2022 to meet the expected demand for labor, according to a model developed by Associated Builders and Contractors.
Codes and Standards | Mar 4, 2022
FAA offers $1 billion in grants for airport terminal and tower projects
The Federal Aviation Administration (FAA) is now accepting applications for about $1 billion in grants for airport projects during fiscal year 2022.
Codes and Standards | Mar 1, 2022
Engineering Business Sentiment study finds optimism despite growing economic concerns
The ACEC Research Institute found widespread optimism among engineering firm executives in its second quarterly Engineering Business Sentiment study.
Codes and Standards | Feb 28, 2022
Low-cost concrete alternative absorbs CO2
Researchers at Worcester Polytechnic Institute have developed a new CO2-absorbing material that’s a low-cost alternative to concrete.
Multifamily Housing | Feb 25, 2022
First set of multifamily properties achieve BREEAM certification in the U.S.
WashREIT says it has achieved certification on eight multifamily assets under BREEAM’s In-Use certification standard.
Codes and Standards | Feb 24, 2022
Most owners adapting digital workflows on projects
Owners are more deeply engaged with digital workflows than other project team members, according to a new report released by Trimble and Dodge Data & Analytics.
Codes and Standards | Feb 21, 2022
More bad news on sea level rise for U.S. coastal areas
A new government report predicts sea levels in the U.S. of 10 to 12 inches higher by 2050, with some major cities on the East and Gulf coasts experiencing damaging floods even on sunny days.
