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NC-2009 IEQc6.2:Controllability of Systems—Thermal Comfort

IEQ 6.2 Controllability of Systems - Thermal Comfort

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Sandra Holmström
environmental consultant
Bengt Dahlgren AB
LEEDuser Basic Member
1 thumbs up

Hi! I have a Core & Shell project that is a commercial mall. Is this credit eligible at all for these type of building? We're not sure how to interpret if we need to provide individual controls for all building occupants (including visitors/transients wich is impossible and makes the project not eligible) or just for permanent workstations. If so, how should the workstations be defined? Is it just back offices in the stores or also the cashier lines? It seems to me that the only way for this project to earn this credit is if one can motivate that just the back offices are defined as permanent workstations and that the credit requirement therefore can be interpreted that 50% of theses offices should have individual controls. But this feels like a long-shot. How do you interpret? /Best

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John McFarland
Director of Operations
WorkingBuildings, LLC
LEEDuser Expert
39 thumbs up

Tue, 09/04/2012 - 12:40

Hi Sandra, I do not believe the credit requires individual thermal comfort control for the visitors. While the credit language uses the term "occupants", the reference guide mentions only areas where FTEs would be present (offices, reception desks, etc.). So yes, the back offices would need to meet the 50% requirement. The sales areas are classified as a multi-occupant spaces (this is supported in the IEQ Space Matrix developed by USGBC). Hope this helps.

Tue, 09/04/2012 - 19:06

Hi Sandra, You've hit on a tricky scenario. Currently LEED for Retail doesn't exist for Core and Shell projects. However, I would still take a look at LEED for Retail for general thoughts and guidance. Please go here: http://www.usgbc.org/ShowFile.aspx?DocumentID=8870 (page 75). The language states: "Provide individual lighting controls for 90% (minimum) of retail employees in office and administrative spaces, enabling adjustments to suit individual task needs and preferences. AND Provide individual thermal comfort controls for 50% (minimum) of retail employees in office and administrative spaces to enable adjustments to suit individual task needs and preferences." Granted, your reviewer may or may not take this approach seeing as your project is not registered under LEED for Retail but I think you could make a strong case for using the approach outlined in this system while referencing the limitation of currently not having access to a LEED for Retail for Core and Shell. I worked on one LEED-CI project that wasn't registered as LEED-CI Retail but we still used some of the language successfully from LEED-CI Retail in our approach for EQc6. Is your project's scope including the mechanical controls? I'd just make sure to review this language from the LEED-CS 2009 Reference Guide which states: "Core and shell projects that do not purchase and/or install the mechanical system or operable windows (or a combination of both) have not met the intent of this credit." Further, I often include a potential floor plan layout for reviewers breaking down the space plan for your Core and Shell space with notations indicating the thermal comfort controls. I agree with John that the shoppers in the mall wouldn't need to be included. However, part time employees and full time employees would. Hope this helps a bit. Any other LEEDuser forum members have additional advice or experiences they could share?

Tue, 09/04/2012 - 19:07

sorry, LEED for Retail is found here: http://www.usgbc.org/ShowFile.aspx?DocumentID=7956 and not in the original link I provided.

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