Enhance thermal comfort and promote human productivity by ensuring that a substantial majority of building users (above 80%) perceive their environment as thermally acceptable.
Enhance Thermal Environment (1 point)
Choose between the following:
Note: Mixed-mode-conditioned spaces are deemed compliant with the feature if requirements for both mechanically and naturally conditioned spaces are satisfied.
Achieve Thermal Comfort (Max: 3 points)
A post-occupancy survey is administered at least twice a year, including once in June, July or August and once in December, January or February, at least six months after occupancy, which satisfies the following conditions:
All regular building occupants are invited to participate in the anonymous survey.
Responses are collected from the following number of respondents:
- At least 35% the total occupants if more than 45 occupants are solicited.
- At least 15 occupants if solicited occupants number is between 20 and 45.
- At least 80% of the total occupants if fewer than 20 occupants are solicited.
The survey includes an assessment of overall satisfaction with thermal performance and identification of thermal comfort-related issues in accordance with either:
- The sample survey in Appendix T1.
- Any pre-approved survey listed in Part 1: Administer Project Survey in Feature C03: Occupant Survey.
The results of the survey responses comply with one of the target satisfaction thresholds as specified in the table below:
Thermal Comfort Satisfaction Thresholds Points 80% of regular occupants 2 90% of regular occupants 3
Note: Surveys may be given to occupants via a website, phone application or handed out as hard copies. The surveys should be distributed during mid-morning or mid-afternoon, at least 30 minutes after arrival or after a lunch break. The distribution of the results are submitted as part of documentation for this feature. See example in Appendix T1. For initial certification, only the results from the first survey are required. For recertification, the median value of occupant satisfaction from the previous six surveys is used.
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