Standard 55-2013 -- Thermal Environmental Conditions for Human Occupancy
For thermal comfort—this is the standard.
Standard 55 specifies conditions for acceptable thermal environments and is intended for use in design, operation, and commissioning of buildings and other occupied spaces.
(Members $81) / 54 pages / 2013
ANSI/ASHRAE Standard 55-2013 defines the range of indoor thermal environmental conditions acceptable to a majority of occupants, but accommodates an ever increasing variety of design solutions intended both to provide comfort and to respect today's imperative for sustainable buildings.
Since 2010, Standard 55 has been rewritten with a renewed focus on
application of the standard by practitioners and use of clear,
enforceable language. Requirements are now clearly stated and
calculation procedures appear sequentially.
New for 2013:
- An allowance for the cooling effect of air movement as a way to extend the upper limit of the comfort zone in naturally conditioned spaces
- The addition of a predictive model for occupant clothing behavior based on extensive field research
- Major revisions to Section 7 procedures for measuring comfort in existing spaces.
Documentation requirements to show that a design complies with Standard 55 are contained in Section 6, and a sample compliance form is provided in Appendix J. Both of these sections are clarified and streamlined for use by owners and third-party rating systems.
ASHRAE Thermal Comfort Tool Version 2
This software provides a user-friendly interface for
calculating thermal comfort parameters and making predictions
using several existing thermal comfort models. This new version focuses on the
Adaptive and Predicted Mean Vote (PMV) Models and has an updated user interface. Learn more