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 | Dec 28, 2020
Dept. of Energy offers Better Buildings Field Validation Results Hub
One-stop-shop for information associated with technology validations in buildings.
Codes and Standards | Dec 28, 2020
2021 Defense Authorization Act includes mass timber provision
Directs defense, agriculture secretaries to review potential for wood frame construction on defense building projects.
Codes and Standards | Dec 28, 2020
New York City proposal would require rainwater detention tanks for new development
Rule would apply to projects on lots sized 20,000 sf or larger.
Codes and Standards | Dec 17, 2020
Energy efficiency as a service gaining ground as financing approach for adopting innovations
Building owners can invest in new technology with no upfront cost.
Codes and Standards | Dec 16, 2020
Resources available to address Legionella threat
Buildings reopened after extended pandemic closure are at risk.
Codes and Standards | Dec 16, 2020
New Specifications for Concrete Construction reference manual released
Scope expanded to include shotcrete, internal curing, mineral fillers, and recycled concrete aggregates.
Codes and Standards | Dec 15, 2020
Despite COVID-19 population flight, don’t write off big cities yet
Lure of urban life and jobs may draw people back after pandemic subsides.
Codes and Standards | Dec 10, 2020
Test method for vertical fenestration installation procedures updated
FGIA issues first update for document created in 2005.
Codes and Standards | Dec 10, 2020
Updated EPDs for Polyiso Roof and Wall Insulation; EPD for Polyiso High-Density Cover Boards published
Cover Boards EPD is an industry first.
Codes and Standards | Dec 9, 2020
Newly formed Rainscreen Association aims to be recognized authority on rainscreen assemblies
Will address innovations in material performance and building designs.
