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 | Jun 21, 2021
Vancouver, B.C., may delay new zero emissions building standards
Building permit delays may postpone new standards by a year.
Codes and Standards | Jun 17, 2021
Buffalo’s parking reform having noticeable impact on development
Elimination of mandatory parking allotments encourages new projects.
Codes and Standards | Jun 16, 2021
Inconsistent building codes make some states more vulnerable to hurricanes
Florida takes top spot for strongest building code in latest IBHS survey.
Codes and Standards | Jun 15, 2021
Growing housing supply gap will worsen affordability crisis
Supply projected to fall 4.5 million units short in 2022.
Codes and Standards | Jun 15, 2021
Florida will allow virtual inspections, building code enforcement, permit issuance
New law will go into effect on July 1, 2021.
Codes and Standards | Jun 10, 2021
New York City cracks down on construction site safety
Buildings Dept. issues new safety legislation for City Council consideration.
Codes and Standards | Jun 9, 2021
ASHRAE updates health care facility ventilation standard
Includes improved guidance on thermal comfort, revisions to air filtration requirements.
Codes and Standards | Jun 8, 2021
American Wood Council releases new fire design specification
For design of wood members, assemblies, and connections to meet code requirements.
Codes and Standards | Jun 7, 2021
Guide provides strategies to overcome barriers to sustainable affordable housing
International Living Future Institute document helps with social, regulatory, and financial hurdles.
Codes and Standards | Jun 3, 2021
Conversion of large office buildings to residential will require revamped regulations
Post-1960 offices present ventilation, daylighting, and other challenges.
