Leed Zoning Requirements

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Does anyone know of a good guide to LEED Energy Modeling zoning
requirements?

Chris Flood

Chris
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Chris,

The ASHRAE Standard 90.1 User's Manuals (2004, 2007), pages G-19 and
G-20 describe how to define your zones when using the Building
Performance Rating Method, as required for LEED energy modeling.

Regards,

William Bishop, PE, BEMP, LEED(r) AP

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Could you be a little more specific with your question. LEED requires/allows you to follow the energy modeling zoning requirements set out in ASHRAE 90.1, App G. But, I doubt that's the answer you're looking for.

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Generally, match the HVAC zoning when that's known (typical in my LEED
projects), combining the zones where they are significantly similar in
system type and internal/external loads/surfaces. When you don't know
the HVAC zoning, 90.1 allows for simplified "perimeter/core" zoning with
some common-sense restrictions. As Bill suggested, 90.1 user's manual
spells out both approaches with brevity.

Alternatively, you might read the entry "Zones for Buildings Without
HVAC Systems" in the DOE-2 help files that came with your eQuest
installation.

NICK CATON, E.I.T.

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