Default occupancy counts (ASHRAE 62.1 vs. Reference Guide)

Ricardo Sá

Director of Sustainability

Edifícios Saudáveis Consultores (503 910 767)

LEEDuser Basic Member

79 thumbs up

August 3, 2015

According to LEED Reference Guide (C&S Box in page 410), Core & Shell Projects that do not have occupancy counts must use the default occupancy densities provided in ASHRAE 62.1 (table 6.1). However, LEED Reference Guide Appendix 1 (Default Occupancy Counts for Core & Shell) provides default occupancy counts (distinct from those of ASHRAE 62.1) and states that these default occupancies shall be applied to IEQp1 and IEQc2. Can you please clarify?

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Riccardo Hopps

Architect

OGB STUDIO di Hopps Scrimieri Architetti Associati

LEEDuser Premium Member

0 thumbs up

Fri, 07/22/2016 - 09:33

Dear Pedro, I have the same doubt too. How did you solve it??

Michael Brown

Energy Analyst & Energy Systems Design Engineer

HKS

LEEDuser Expert

7 thumbs up

Fri, 07/22/2016 - 15:02

If you believe that this will be a concern for your LEED submittal, I suggest using the worst-case of the two (62.1 occupancy or Appendix 1) A narrative should be uploaded that describes a detailed explanation of your approach and how it meets the requirements of IEQp1 and IEQc2. However, typically Appendix 1 is not used for occupant density for EAp2, IEQp1/c2; they are for calculating FTEs of WEp1 and similar credits.