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 | Sep 6, 2017
Seventy percent of contractors have trouble finding workers
AGC survey indicates that fewer companies may be able to bid on projects.
Codes and Standards | Sep 5, 2017
New CTBUH initiatives to investigate link between fire and façades
In wake of Grenfell tragedy, Council forms new workgroup.
Codes and Standards | Sep 1, 2017
U.S. markets with the largest hotel construction pipeline
New York has the largest hotel construction pipeline of any U.S. market.
Codes and Standards | Aug 30, 2017
Trump rescinds elevation requirements for federally funded buildings and infrastructure
Flood protection on subsidized housing, hospitals, and other public buildings rolled back.
Codes and Standards | Aug 30, 2017
Stormwater runoff mitigation pays off for some building owners
Rain gardens, green roofs, cisterns, and rainwater recycling add value.
Codes and Standards | Aug 28, 2017
Commercial properties address state carbon-reduction policies
EV charging stations, batteries, and microgrid technology are all part of effort to meet demand for cleaner power.
Codes and Standards | Aug 24, 2017
OSHA silica dust exposure enforcement begins Sept. 23
Vacuum dust collection, water-delivery systems, and respirators will be required.
Codes and Standards | Aug 18, 2017
Cool roofs may increase air pollution
California’s requirement for cool roofs on new non-residential buildings could promote smog.
Codes and Standards | Aug 17, 2017
Black market sales of OSHA training certifications plague New York City construction industry
Task force formed to get fake training cards off the streets and workers properly trained.
Codes and Standards | Aug 16, 2017
Big changes coming to Ontario building code
Proposals include solar-ready roofs, more stringent heating/cooling efficiency requirements, and graywater reuse.