What MET rate would you assume for the ASHRAE-55 compliance for retail areas (ie. supermarket, clothes retail)? Customers would be walking about (MET:1.7), while employees would be either standing or seated (MET: 1-1.2). In summary, for whose comfort should retail spaces be designed for, customers or employees?

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Lindsay Austrom

Mechanical Engineer

Stantec

LEEDuser Premium Member

18 thumbs up

Wed, 01/30/2013 - 18:25

Hi Omer, It is noted in ASHRAE 55 Normative Appendix A (Activity Levels) that each group of occupants must be considered separately, and that it may not be possible to provide an acceptable level of comfort to all occupant groups. In your case, you would analyze thermal comfort for employees and customers as separate cases, then ensure that you can satisfy both cases.

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