to implement a thermal comfort survey to confirm occupant comfort
has been provided.
Agree to implement a thermal comfort survey within six to 18
months after occupancy.
Agree to develop a plan for corrective action if the survey
indicates more than 20% of the occupants are dissatisified with
thermal comfort in the building.
- Thermal comfort survey may be administered in person, over the
phone, emailed, or on paper.
- Corrective actions may include: control adjustments, diffuser
airflow adjustments, and solar control.
- Sample surveys can be found at the Center for the Built
Environment and Usable Buildings Trust.
- Ventilation systems may be mechanical or natural. If natural
ventilation and infiltration are being used, compliance with ASHRAE
62-1999 can be demonstrated using a tracer gas test (described in
ASHRAE 55-1999). Otherwise, perform calculations of natural
ventilation based on wind pressure and thermal buoyancy
(stack-effect) driven ventilation as described in the ASHRAE
Handbook of Fundamentals, Chapter 22 or the ASHRAE Standard
- ASHRAE 62.1-2004 combines Standard 62-2001 and published
addenda, thereby providing an easy-to-use consolidated standard.
Standard 62.1-2004 specifies minimum ventilation rates and indoor
air quality that will be acceptable to human occupants and are
intended to minimize the potential for adverse health effects.
- 45% of all California LEED Certified projects achieved this
credit for LEED v2.1.
Additional EDR Resources
Studies: Displacement Ventilation in Classrooms
Design Briefs: Underfloor Air Distribution and Access
Briefs: Air Conditioning & Ventilation