ASHRAE-55

Thermal Environmental Conditions for Human Occupancy

ASHRAE standard defining acceptable thermal conditions in buildings. Specifies comfort zones, adaptive models for naturally ventilated spaces, and local discomfort criteria (draught, radiant asymmetry, floor temperature). The primary reference for HVAC design.

Document
ASHRAE Standard 55-2023
URL
https://www.ashrae.org/technical-resources/bookstore/standard-55-thermal-environmental-conditions-for-human-occupancy
Label
Standard
Keywords
thermal comfort HVAC comfort zones adaptive model natural ventilation draught radiant asymmetry

Domain: Thermal and Climate · Standard