Is there a space matrix available for LEED V4?
LEED IEQ Space Matrix - Frequently Asked Questions
Earlier editions of this spreadsheet from USGBC raised more questions than they answered, but some of the frequently asked questions about the matrix have been addressed with this latest release.
April 5, 2013
The IEQ Space Matrix, currently in its third edition as of April 1, 2015, contains lists that categorize spaces for applicability to LEED Indoor Environmental Quality (IEQ) credits. The lists are modified from the spaces in IES Lighting Handbook, 10th Edition. These lists should be used along with the general credit guidance, notes, and definitions provided in the General Credit Guidance and Notes and Definitions tabs.
Earlier editions of this spreadsheet raised more questions for some of us than they answered, but some of the frequently asked questions about the matrix have been answered with this latest release.
Note: Most of the FAQs below apply primarily to IEQc6.
Is the IEQ Space Matrix a Guidance Document or is it required?
If your project was registered after the release of the IEQ Space Matrix then LEED reviewers will expect you to use the matrix to help determine which spaces to include in various credit requirements. However, as is the case for all LEED credits, if you have an exceptional circumstance you can make a case in a narrative for why your project must take a path not outlined or clarified in the matrix.
Do only “regularly occupied spaces” or do all “occupied spaces” need to be included?
Per the IEQ Space Matrix, if a space is non-regularly occupied then it does not have to be included in IEQc6.1 or EQc6.2. The version of the matrix released 4/1/13 makes this delineation more clearly. Also, hallways and bathrooms are now officially excluded from the credit requirements.
I am working on a residential project. How many lighting controls do I need?
You rely on LEEDuser. Can we rely on you?
LEEDuser is supported by our premium members, not by advertisers.Go premium for $12.95 »
Per the IEQ Space Matrix, for all individual and multi-occupant spaces, each space must have one lighting control to be counted towards the credit. For IEQc6.2, each unit must have its own thermal control to be counted towards the credit. More information by room for IEQc6.1 and IEQc6.2:
- Bedrooms: Yes, need to be included in IEQc6.1 and IEQc6.2 as an individual occupant space. For this space to count towards credit for IEQc6.1 or IEQc6 (CS), one lighting control must be included in the space. For this space to count towards credit for IEQc6.2 or IEQc6 (CS), one thermal control must be located within the residential unit. The location of the control does not matter.
- Dorm Room: Yes, needs to be included in IEQc6.1 and IEQc6.2 as an individual occupant space. For this space to count towards credit for IEQc6.2 or IEQc6 (CS), one thermal control must be located within the room.
- Living: Yes, needs to be included in IEQc6.1 and IEQc6.2 as a multi-occupant space.
- Circulation/Hallways: This space is not included in the credit requirements.
- Dining: Yes, need to be included in IEQc6.1 and IEQc6.2 as a multi-occupant space. For this space to count towards credit for IEQc6.1 or IEQc6 (CS), one lighting control must be included in the space. For this space to count towards credit for IEQc6.2 or IEQc6 (CS), one thermal control must be located within the residential unit. The location of the control does not matter.
- Bathroom: This space is not included in the credit requirements.
- Workrooms: Yes, need to be included in IEQc6.1 and IEQc6.2 as a multi-occupant space. For this space to count towards credit for IEQc6.1 or IEQc6 (CS), one lighting control must be included in the space. For this space to count towards credit for IEQc6.2 or IEQc6 (CS), one thermal control must be located within the residential unit. The location of the control does not matter.
- Kitchens: Yes, need to be included in IEQc6.1 and IEQc6.2 as a multi-occupant space. For this space to count towards credit for IEQc6.1 or IEQc6 (CS), one lighting control must be included in the space. For this space to count towards credit for IEQc6.2 or IEQc6 (CS), one thermal control must be located within the residential unit. The location of the control does not matter.
- Laundry: This space is not included in the credit requirements.
- Walk-in Closets: This space is not included in the credit requirements.
I am working on a Healthcare project. How has the matrix outlined spaces for my project?
See the IEQ space matrix for a full list of rooms. Some key rooms that are to excluded include: Patient Room Bathrooms, Linen Areas, Medical Records rooms, Nursing Short Term Charting Spaces, Supply and Nutrition areas, and prep and clean up areas. Critical care areas are also excluded as an exception for the credit. Also, In-patient critical care, Pediatric, Psychiatric patient rooms can be excluded from the credit requirements. The only rooms that are considered individual occupant spaces are medical offices, nursing stations, and patient rooms. Operating rooms are still considered multi-occupant spaces.
The LEED Healthcare Reference Guide supplement also provides additional detailed guidance for space designations that is quite helpful. USGBC has not folded all of this content into the matrix.
I am working on a Hospitality project. How has the matrix outlined spaces for my project?
The Front Desk, Housekeeping areas, and lobby must be included as multi-occupant spaces. Hospitality guest rooms can be excluded from lighting and thermal control requirements.
I am working on a Retail project but not using LEED for Retail. How has the matrix outlined spaces for my project?
Retail projects not pursuing LEED for Retail, may pursue the LEED for Retail credit IEQc6 for 1 point in lieu of IEQc6.1 and IEQc6.2 for 2 points, which allows all areas except office and administrative areas to be excluded from the controls requirements.
The categories given in the IEQ space matrix don’t really fit how some of the rooms in my project will be used. What should I do?
Use your best judgment. The matrix states, “exceptions to area use classifications will be accepted on a case-by-case basis for spaces with atypical uses or those in which strategies required for compliance may compromise the function of the space. This is not an exhaustive list. If a space is not listed, project teams should try to find a similar space type and follow that guidance.”
Safety and code compliance have to always come first. You can always try writing a strong narrative to make your case for your project’s exception. However, it’s important to keep in mind that some project types may simply not be well aligned with the credit’s requirements. In that case, it might best to focus your efforts on other LEED credits that are more applicable.
I’m working on a project that has transient occupants. How does the matrix address transients, and are transients required to have access to the controls?
The matrix includes several space types that have transient occupants, for example: libraries, auditoriums, and transportation terminals. Controls must be provided for these spaces if they are listed as individual occupant or multi occupant and have the corresponding "Yes" in the relevant credit column—for example. For more on addressing controls in multi-occupant spaces, see LEEDuser's guidance on IEQc6.1 and IEQc6.2.
Have you looked at the new IEQ Space Matrix? Post your questions and thoughts below. Also see LEEDuser's IEQ credit pages for more guidance on specific credit-by-credit requirements.
V4 Space Matrix
Thank you for your prompt feedback. Another quick question please, are all the spaces in the aforementioned matrix to be included in the " shared multi-occupant spaces ' part of the credit ? i.e. the matrix doesn't segregate between areas applicable to the individual workstations parts of the credit against the shared multi-occupant spaces part. As the definition of the shared multi-occupant spaces as per the reference guide is " spaces including conference rooms, classrooms, and other indoor spaces used as a place of congregation." which differs from the definition stated in the matrix " places of congregation, or where occupants pursue overlapping or collaborative tasks. Multi occupant spaces may be regularly or non-regularly occupied spaces. ".
Thank you for your help ! :)
Could you please advise when was the release date of the IEQ Space Matrix. Since I have a project which was registered on Dec 20th , 2011. I was wondering if this list would be applicable and mandatory in my submittal for IEQ 6.1.
should an aerobics area be multi-occupant for IEQc6.2?
Should an aerobics classroom area be considered as a multi-occupant area under IEQc6.2? It is not really an area were you do presentations or training but exercising classes.
EQ Space Matrix file on USGBC's website is damaged
Would someone be able to share the current April 2015 copy of the EQ Space Matrix on this site without linking to USGBC Credit Resources? The file located in Credit Resources (http://www.usgbc.org/resources/eq-space-type-matrix) downloads, but does not open. We just receive the message: "Excel cannot open this file. The file might have been damaged or modified from its original version." Thanks!
Parking garage exhaust air rate - LEED CS v3
Our project has an underground parking garage. It is a non-occupied space since no one is working there.
I could not find any parking or similar space in the Space Matrix (Oct 2013) table, so I'm not sure how to go about it.
But, the Space Matrix states in Allowed Exclusions column, for IEQp1/IEQ2: "Nonoccupied spaces and restrooms are excluded from the Ventilation Rate Procedure (or natural ventilation) requirements". Does it mean than our parking garage is excluded from any calculation in IEQp1 and IEQ2?
ASHRAE 62.1 defines a minimum exhaust air rate for parking garages, but the above statement overrides it in case of non-occupied parking garages, right?
Thanks for your help!
The requirements of EQp1 outlined within the LEED reference guide require the project team to meet the minimum requirements of Sections 4 through 7 of ASHRAE 62.1. Section 6.2.8 of the standard requires exhaust per Table 6-4. Parking Garages are listed in this table and require an exhaust rate of 0.75 cfm/square foot.
Similar to restrooms, parking garages are excluded from the ventilation rate procedure. However they are not excluded from the exhaust requirements outlined in Table 6-4.
I hope this provides better guidance.
Could you elaborate? Why the Space Matrix would not apply to parking garage?
Spaces not in Matrix - Vending, Recycling, and janitor's closets
Three questions here:
-What space type should I use for a vending room (enclosed room with vending machines)?
-What space type should I use for a small enclosed room for recycling containers?
-What space type should I used for a janitor's closet?
You too, Lauren. Thank you
You too, Lauren. Thank you both for your help - I'm very grateful to LEEDUser for allowing me to check my understanding.
Lyle, I think your
Lyle, I think your interpretations sound pretty reasonable. Thanks for sharing more details on your thinking.
Thanks, Lauren. I guess that
Thanks, Lauren. I guess that is all that matters, so no need to dig deeper, but I still wanted to confirm that I am correctly applying the space matrix.
Tristan, I think the recycling and vending rooms are non-regularly occupied service spaces, so "stairways and corridors" seems like the best fit. The janitor's closet is a non-regularly occupied storage space, so I'm thinking "Warehouse and Storage: Inactive/Nonoccupied". Sound right?
I'm also dealing with a large storage area, which includes lockers for military personnel and locked caged areas for equipment storage. I'm treating the areas with lockers as "locker room", and the caged storage area as "Warehouse and Storage: Inactive/Nonoccupied". My hesitation is that the military personnel may occupy the space for longer than a typical locker room, because they use the space to assemble their gear (set up their packs). I appreciate your thoughts on this.
Lyle, help us help you. For
Lyle, help us help you. For each space, what's your best guess and why aren't you sure?
Industrial Facility Large Space - Occupied?
Our project is an industrial building with a large bottle filling facility. That bottle filling machine is situated in a large space (approx. 100,000 sf and 10 meters high). In this space there will be around 6-8 people working. They will be mobile in the space to check the process. Is this large space counted as regularly occupied?
If yes, since the space is so large, we won't be able to get any credits involving regularly occupied spaces... And all the improvements we do in the office area with 50 people working (5000 sf) won't have any impact in total.
Aaron, I think you are
Aaron, I think you are correct that it should be considered a regularly occupied space. I hear you that this will introduce some complications as far as LEED credits are concerned.
In LEED v4, there are some new credits that are more tailored for warehouses and distribution facilities. This might be worth a look.
Yes, I did. According to
Yes, I did. According to sheet it may be considered as a Manufacturing facility and a regularly occupied space. However, that space is so large and very few people in it. Also, there is no stationary working places in it. I think it should be considered non-occupied like a corridor, but I don't know how reviewers will evaluate.
Aaron, have you checked the
Aaron, have you checked the IEQ Space Matrix yet?
Older edition of space matrix
Can anyone guide me to find the older version (version 1 and 2)?
I think I have inadvertently
I think I have inadvertently saved a link to the older IEQ space matrix.
I got the review from the
I got the review from the reviewer that I need to provide flush-out and ASHRAE55 comfort for the locker room. They said it depents on the registeration date and the EQ space matrix version during that time. So, I just have a little hope that the past version did not rquired flush-out and comfort for the lockers (and other zone such as recycle rooms and restroom).
Changing project name
Our project hasn't gone through any precertifications yet. The project was registered in one name but now the name has changed. I am the project admin and I could change it in LEED Online under the "Registration Details". Do I need to follow up this change in any other way, or changing it in the Project Registration Details is good enough. Thanks!
Thank you for replying! Sorry
Thank you for replying! Sorry about posting it in the wrong place. I thought I was in the General forum tab.
Status of corridors/hallways for IEQp1
I'm a bit confused about whether corridors/hallways are in or out? Under one of the FAQs above it is stated: "Also, hallways and bathrooms are now officially excluded from the credit requirements."
However, looking at the BD+C and ID+C matrix tab of the spreadsheet itself, under "Service Spaces" a distinction is made between "Egress stairway or dedicated emergency exit corridor" (always "N") and "Stairways and corridors" (some "N", some "Y").
- Is it correct to assume that the latter category only refers to "extraneous" corridors and stairs beyond what is required for egress?
- Are there definitions in the IES handbook (from which this table derives) of these category terms?
I'm interested in IEQp1 - see
I'm interested in IEQp1 - see my header :) - where that distinction seems to matter. I'm dealing with an LEED NC Major Renovation institutional project with a fair amount of grand staircases seamlessly connected to corridors (no doors between them) that are used for general circulation but also serve as the required means of egress. (The building is more than 100 years old, i.e. was built before the modern way of enclosed/fire-rated stairways and corridors was developed.) Therefore, I'm not quite sure how to classify them for the purpose of the IEQ Space Matrix.
Why are guestrooms excluded? It seems they should be in the same realm as dorm rooms or bedrooms. They typically help me get these credits for hospitality projects - are they excluded because they make things too easy?
So if you choose to include
So if you choose to include them for IEQc6.1 and 6.2 do you count each room as one workstation? Or do you need to have multiple workstations in each room?
That makes sense, in a way.
That makes sense, in a way. Thanks for the clarification Lauren!
If I understand your response
If I understand your response to this question, Hospitality guest rooms can be included or excluded from IEQc8.1? The matrix clearly states that Hotel guest rooms are included.
Add new comment
To post a comment, you need to register for a LEEDuser Basic membership (free) or login to your existing profile.