CI 2009 IEQc8.2: Daylight and Views—Views for Seated Spaces

  • NC, CS, CI IEQ8.2 Views Diagram
  • Easy credit for most buildings

    Buildings that provide views to the outdoors have proven to enhance productivity, testing performance, and overall occupant comfort and well-being. This credit is easy to achieve if you also plan to design for open space planning, placing occupied spacesOccupied Spaces are defined as enclosed spaces that can accommodate human activities. Occupied spaces are further classified as regularly occupied or non-regularly occupied spaces based on the duration of the occupancy, individual or multi-occupant based on the quantity of occupants, and densely or non-densely occupied spaces based upon the concentration of occupants in the space. near exterior windows with...

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30 Comments

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Noriko Yasuhara CSR Design & Landscape Co., Ltd.
Jan 29 2012
Member
20 Thumbs Up

dimension calculation methodology

When we calculate "regulary occupied space" for EQc8.2, is it supposed to be inside of wall or "center on center" ?

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Tristan Roberts Editorial Director – LEEDuser, BuildingGreen, Inc. Jan 29 2012 Moderator

Noriko, if I understand your question correctly—the space is the square footage of the room(s) in question.

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Noriko Yasuhara CSR Design & Landscape Co., Ltd. Jan 30 2012 Member 20 Thumbs Up

Tristan, thank you for your prompt response.
My question is which area should be used net or gross for area calculation in EQc8.2.

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Todd Reed Daylight Designer, 7group Jan 30 2012 Guest Expert 806 Thumbs Up

It would be the space on the inside of the walls. There has been confusion on this issue because of the information required information i believe PLF 2 which requires the overall floorplate size, which will be a different number then that used in EQc 8.1 and 8.2. The table 8.1 in PLF 3 asks for the regularly occupied space which will only be used for those two credits.

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Noriko Yasuhara CSR Design & Landscape Co., Ltd.
Jan 29 2012
Member
20 Thumbs Up

Can a smoking room be regarded as regulary occupied space?

The definition of "regulary occupied space" is described as following;
Regularly occupied spacesRegularly occupied spaces are areas where one or more individuals normally spend time (more than one hour per person per day on average) seated or standing as they work, study, or perform other focused activities inside a building. are areas where one or more individuals normally spend time (more than one hour per person per day on average) seated or standing as they work, study, or perform other focused activities inside a building.
Our project scope includes a smoking room which has a large fenestration and we would like to count this space for EQc8.2 credit. We estimate total 25-35% of FTEFull-time equivalent (FTE) represents a regular building occupant who spends 8 hours a day (40 hours a week) in the project building. Part-time or overtime occupants have FTE values based on their hours per day divided by 8 (or hours per week divided by 40). Transient Occupants can be reported as either daily totals or as part of the FTE. Residential occupancy should be estimated based on the number and size of units. Core and Shell projects should refer to the default occupancy table in the Reference Guide appendix. All occupant assumptions must be consistent across all credits in all categories. (might be less) uses this space for smoking several times a day. Is it difficult to count it as "regulary occupied space"?

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Tristan Roberts Editorial Director – LEEDuser, BuildingGreen, Inc. Jan 29 2012 Moderator

Noriko, I would not count a smoking room as regularly occupied space—I would consider smoking more of a leisure activity, not study, work, or "other focused activities."

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Todd Reed Daylight Designer, 7group Jan 30 2012 Guest Expert 806 Thumbs Up

Initially i would go with Tristan and say that the smoking room would not be considered regularly occuppied. It is similar to a break room, which can be excluded.

However, you are providing windows for the space, and if the design intentA written document that details the ideas, concepts, and criteria that are determined by the owner to be important to the success of the project. was to provide occupants a space where they could smoke and enjoy views and daylight, then include in your calculations.

I don;t think a reviewer would question your decision either way with this one as long as the inclusion of thsi space determines credit achievement or not.

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Jill Dalglish President, Dalglish Daylighting Jan 30 2012 Guest Expert 717 Thumbs Up

It is my understanding that break rooms are explicitly called out as non-regularly occupied and MUST be excluded. This is a break room. Many break rooms are provided with views and daylight and this does not change their classification as regularly occupied or not. I would caution using this as ROS. If you do, I would include a detailed narrative of your argument for it and please, report back here on how it went!

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Todd Reed Daylight Designer, 7group Jan 30 2012 Guest Expert 806 Thumbs Up

As long as you are consistent with the inclusion and exclusion of spaces they should not be any issues. I've never had any issues when including non-regularly occupied spacesRegularly occupied spaces are areas where one or more individuals normally spend time (more than one hour per person per day on average) seated or standing as they work, study, or perform other focused activities inside a building. in the calculations. I have not read that you MUST not include these spaces. If you are consistent and providing views and daylight to more spaces then required, you are going above the intent and requirements in my opinion. I don;t a reviewer would question this, as long as you are consistent.

I've always wondered why break rooms have been allowed to be excluded from the calculations. Here is a space that is provided to workers to rest or eat lunch so why wouldn't you provide them daylight and views. This would especially be significant in buildings where workers live in cubicle land and may not have any relevant eye relief from their computer screens except when on break.

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Jill Dalglish President, Dalglish Daylighting Feb 02 2012 Guest Expert 717 Thumbs Up

I agree. I think it's strange that break rooms are not considered in the daylight calculations, but it does say that regularly occupied spacesRegularly occupied spaces are areas where one or more individuals normally spend time (more than one hour per person per day on average) seated or standing as they work, study, or perform other focused activities inside a building. are where people are working. And, I guess if you are working in an office that has daylight and views, you don't necessarily need daylight and views in your break room. Still, it seems counter intuitive.

I see what you are saying about including non-regularly occupied spaces. It is a good argument. Glad to hear that you have not had issues with it.

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Truex Cullins Architect Truexcullins
Oct 05 2011
Member
7 Thumbs Up

Frosted Glazing?

We are attempting IEQ 8.2 for LEED CI. Would a 49" tall frosted glass panel partition comply with the intent of this credit? i.e.: Can the interior glazing surfaces be transLUCENT or must they be 100% transPARENT?

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Lida Lewis Project Manager, OTJ Architects Oct 20 2011 Member 42 Thumbs Up

The intent is to provide a clear line of sight, and translucent glass would obstruct the view.

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Steve Khouw Principal, DNA GreenDesign Dec 03 2011 Member 442 Thumbs Up

However, if you programmed the panels of the workstations to be positioned perpendicular to the window, there be still clear Line Of Sight for all, right?

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Todd Reed Daylight Designer, 7group Dec 06 2011 Guest Expert 806 Thumbs Up

Steve,
Only if the partition panel that ran parallel to the window wall was clear glass from 42" up or the panel was shorter then 42".

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Steve Khouw Principal, DNA GreenDesign Dec 06 2011 Member 442 Thumbs Up

Todd, you are right, actually we are both right. I was referring to the systems furnitureSystems furniture includes panel-based workstations comprising modular interconnecting panels, hang-on components, and drawer and filing components or a free-standing grouping of furniture items designed to work in concert. panel being perpendicular to the window wall, not parallel. If perpendicular, all occupants should have access to daylight view. If parallel, any panels above the 42" plumb must be in clear glazing.

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Rubén Morón Rojas Codirector CIVITA
Sep 14 2011
Member
199 Thumbs Up

View outside vision glazing, LEED CI 2.0 project.

Hi all,

Since I couldn't find a LEED CI 2.0 forum, I allow myself to write here (my apologies):

The vision of a multi-occupant office goes directly to a terrace which has a high wall located 10 feet outside the vision glazing. Would this be an inconvenient if the project is following the credit EQ8.3 Daylights and Views-Views for Seated Spaces in LEED for Commercial Interiors 2.0?

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Tristan Roberts Editorial Director – LEEDuser, BuildingGreen, Inc. Nov 20 2011 Moderator

Ruben, I would say that although the view you describe isn't a "quality view" in the words of a proposed LEED 2012 credit, it is a view to the outdoor environment, and should qualify.

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Gail von Staden Principal von Staden Architects
Apr 08 2011
Member
63 Thumbs Up

IEQc8.2_Views for Exemplary Performance - Documentation

Dear Leeduser Forum :-)

I'm working on a commercial interiors project that I hope can acheive the EP points. But, I'm still not sure about some of the criteria descriptions and how to document them. The project is located in a downtown urban area - for the 2nd set of criteria, what exactly would "human activity" and "objects at least 70% from exterior glazing" include?

For all 4 sets of crtieria, what kind of documentation is required, other than the "Table" provided on the Online Form? Also, would I need to provide separate sets of floor plans that are specifically designated for each set of criteria (which would be similar to the basic uploads for achieving the minimum credit)? Also again, for the "view factor" criteria , I was thinking of providing a rubric photo-sample from our project space that follow the Heschong-Mahone Group Study to support this EP credit - would this be okay...?

I had not seen any conversations that could help me, let me know if I may have overlooked any important threads. Any input is greatly appreciated! Thanks!

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Tristan Roberts Editorial Director – LEEDuser, BuildingGreen, Inc. Apr 22 2011 Moderator

Gail, I have not heard of a lot of projects documenting EP for this credit, and with those who have done so, it seems to bring up just the sort of challenges you are facing. I have looked around before and not found expert resources who were on top of these questions.

Please post back here to share your knowledge as you go!

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Lauren Fakhoury Research Assistant, Sustainable Design Consulting, LLC Aug 12 2011 Member 138 Thumbs Up

Hi Gail,

I am in the process of documenting this credit for the first time as well. Have you looked at the LEED Online form yet? It says you can either submit separate floor plans for each measure or submit them all in one drawing. I'm doing them separately to make it easier. For the first measure I drew multiple view lines to show which areas have them and hatched the areas that did not have multiple view lines. For the second measure I plan on doing the same, keeping the initial view lines and then just hatching the areas that don't have views to human activity, vegetation, etc. I'm hoping this will be enough to show compliance!

For the actual definition of human activity, I think it just means you have a view of people walking/doing things outside?? I'm not quite sure and the reference guide doesn't have a clear definition. Also it says "70 feet from exterior glazing" not "70% of exterior glazing" which probably means you need to be able to see objects 70 feet from the windows.

I took a look at the view factor measure but don't really understand it and feel it would be the most difficult to document. Sorry I can't help with that part! After the design review hopefully I can give you some more feedback.

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Sue Barnett Principal Sue Barnett Sustainable Design
Dec 22 2010
Member
311 Thumbs Up

Courtyard

Our project is repurposing a portion of an academic building interior (1100 sq ft) as well as the same sq ft of an exterior courtyard, we anticipate the courtyard to be used most days as it will have wi-fi, seating, tables as well as educational component for use by classes. Our spaces function as one. Can this square footage be considered for both Daylight and Views credits in CI?

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Tristan Roberts Editorial Director – LEEDuser, BuildingGreen, Inc. Dec 28 2010 Moderator

You're asking whether the exterior SF can be considered for this credit?

Conventionally speaking I would say not, because it wouldn't normally be counted as occupied space according to LEED. If you wanted to cout it, I think that would hinge on whether it's considered "regularly occupied."

What is the view from the courtyard? It would have to be a view outside to count.

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Sue Barnett Principal, Sue Barnett Sustainable Design Dec 30 2010 Member 311 Thumbs Up

It is common on this campus that exterior spaces are used on all but the most inclement days. It serves as outdoor classroom, student study and lounge as well as reception area. So I'm thinking it WOULD be considered regularly occupied area. What do you think?

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Carlie Bullock-Jones Principal, Ecoworks Studio Dec 30 2010 Guest Expert 429 Thumbs Up

Hi Sue!

If you can perhaps achieve the credit without including the "outdoor classroom" it seems that would be best/easier to avoid confusion. While I agree that exterior spaces can be utilized in this manner, you might have to consider that this area (square footage) will likely need to be included throughout your project submission for other related credits (i.e. EAp2/c1, IEQp1, IEQc6.1 & 6.2, IEQc8.1, etc.)

If you feel that this space will be 'regularly occupied' and the project design specifically intended this area to be used as a classroom then you might submit a project specific CIRCredit Interpretation Ruling. Used by design team members experiencing difficulties in the application of a LEED prerequisite or credit to a project. Typically, difficulties arise when specific issues are not directly addressed by LEED information/guide to confirm and/or ensure that the area/square footage is utilized and accounted for consistently across all project submittals and documentation.

Hope helpful.

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Sue Barnett Principal, Sue Barnett Sustainable Design Dec 30 2010 Member 311 Thumbs Up

Thanks Carlie
I do know it would be easier to avoid the concept of outdoor space due to complications with all the credits, and may submit a CIRCredit Interpretation Ruling. Used by design team members experiencing difficulties in the application of a LEED prerequisite or credit to a project. Typically, difficulties arise when specific issues are not directly addressed by LEED information/guide.
But at some point there should be an avenue within LEED to address this sort of situation of functional outdoor area- not using any energy to operate....
Happy Holidays to you!

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Tristan Roberts Editorial Director – LEEDuser, BuildingGreen, Inc. Dec 30 2010 Moderator

I don't often say this, but I think there could be potential here under IDc1. You have a project feature with multiple benefits that is not addressed under an existing credit. Perhaps look at LEED for Healthcare SSc9.1 or SSc9.2 for inspiration?

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Steve Khouw Principal DNA GreenDesign
Nov 29 2010
Member
442 Thumbs Up

EP pursuit in IEQc8.2, measure 3

Carlie, please clarify the meaning of "90% or more of regularly occupied spacesRegularly occupied spaces are areas where one or more individuals normally spend time (more than one hour per person per day on average) seated or standing as they work, study, or perform other focused activities inside a building. have access to unobstructed views located within the distance of 3 times the head height of the vision glazing."

If window fenestration is full heigh, then vision glazing constitutes 60" of vertical view and 3 times equates to 15 feet of unobstructed view. Does that means within 15 feet of the building's curtain wall there should not be another building or structure that will obstruct the view? It might appears so obvious, but we just wanted to be sure.

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Carlie Bullock-Jones Principal, Ecoworks Studio Dec 08 2010 Guest Expert 429 Thumbs Up

Steve,
In your example described above this would mean that regularly occupied spacesRegularly occupied spaces are areas where one or more individuals normally spend time (more than one hour per person per day on average) seated or standing as they work, study, or perform other focused activities inside a building. (areas where workers are seated or standing as they work inside a building) 15 feet from the curtain wall inside the building in plan and section would need to be included in the EP calculation.

You may also want to check out a similar question asked under 'Schools v2009 IEQc8.2' discussion thread dated11/02/10. Hope helpful!

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Christian Lich LEED AP ARCADIS Deutschland GmbH
Nov 10 2010
Member
199 Thumbs Up

View into an atrium

Does the view into an atrium / inner courtyard of a building also count as a compliant view for this credit?

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Tristan Roberts Editorial Director – LEEDuser, BuildingGreen, Inc. Dec 07 2010 Moderator

Christian, the credit requirements clearly fcall for a view to the "outdoor environment." If the courtyard is open, then it should be okay, if closed, not. That sounds a bit arbitrary, but I think it's how the credit is currently written (looks like it will change in 2012 version). You could try a CIRCredit Interpretation Ruling. Used by design team members experiencing difficulties in the application of a LEED prerequisite or credit to a project. Typically, difficulties arise when specific issues are not directly addressed by LEED information/guide if you want to argue for a different "view."

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