Earning this credit is easy for most projects. Make sure you have 10 feet worth of entryway system at main building entrances and keep them clean.
Entryway systems may be mats, grilles, or grates. Most buildings that don’t already have entryway systems purchase mats because that’s typically far easier than installing grilles or grates retroactively.
Regular building carpeting does not count under this credit. Entryway mats are specially designed to capture and hold dirt and particulates, which standard carpeting is unable to do.
Provide a ground level floorplan that notes the location of entryway systems. You don’t need to provide systems at emergency exits and infrequently used or personal office entryways. Remember that entrances leading from loading dock and parking garage areas into the building interior must have compliant entryway systems. Simply note these on the floorplan.
Entryway systems are a simple and effective way to improve indoor environmental quality. Dust and dirt as well as allergens such as pollen and pet dander can be carried into buildings on people’s footwear, contributing to IAQ problems and reducing the life of interior floor finishes. Entryway systems that absorb rain and snow decrease the risk of personal injury due to slips and falls on wet floors.
When LEED 2009 was launched, this credit included language calling for containment drains in laboratory spaces where chemicals are mixed. However, the requirement was vague and it wasn't clear if it applied to janitor's closets, for example. Fortunately, in the July 2010 LEED addenda issued by USGBC, this requirement was removed.
There is no explicit requirement for how frequently entryway systems must be cleaned. A good cleaning program will take into consideration the types of particulates that are likely to be introduced into your building via foot traffic, your indoor air quality goals, and the cleaning needs of the specific entryway system/materials being used. You may also want to consider whether cleaning practices need to be adjusted seasonally to address changes in weather.
Mats are not required to be sent out for cleaning. If your in-house cleaning program is able to maintain your entryway systems, you do not need to seek outside cleaning professionals.
Yes, compliant entryway systems are required for entrances from both loading docks and parking garages. Only entries to private offices, emergency exits, and entries not used during the performance period can be excluded from the credit.
No, you can combine multiple mats to make up ten feet of linear mat.
This strategy works in some cases, based on LEED-NC Interpretations #5585, #5696 and #10098, not all of which have been specifically evaluated for the LEED-EBOM rating system. Per the Interpretations, this strategy can only be pursued if the portion located outside the building is protected from weather (which generally takes the form of an awning, overhang, or the second story for most buildings). It appears that use of exterior systems is more likely to be approved if the building can’t comply with the ten-foot minimum due to physical limitations. If you do use exterior systems, be sure to develop an effective cleaning program for exterior mats or grates, which are exposed to more dirt and particulates than interior entryway systems. If you’re concerned about earning this credit using exterior entryway systems, it may be worth it to 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.
Typical building carpet is not designed to capture and hold particulates, so it is not considered a compliant entryway system under this credit. Remember that the intent of this credit is to improve indoor air quality by preventing the introduction of pollutants into the building interior. Most carpet simply isn’t designed with this in mind. Unless you can provide compelling documentation from a manufacturer that shows your carpet is designed to effectively capture dirt, pollen and other particulates, you won't be eligible for this credit.
The best option in this situation may be to split the entryway system between the interior and exterior so that a total of ten feet of compliant mat is achieved. See the FAQ above for more details. The ten-foot requirement is strict, so projects that don’t have this length of compliant entryway systems are not eligible for the credit.
Assess whether current entryway systems comply with the credit. Grilles, grates, or mats need to be in place at all public entries, and be at least 10 feet long in the main direction of foot traffic. Private offices, emergency exits, and unused entryways are exempt.
If current entryway systems need to be added or modified, project teams have several options. In most cases, mat systems are cheapest; however, grilles and grates are more effective and outlast mats with the wear and tear of foot traffic.
Make sure there are standard operating procedure (SOP) manuals covering the cleaning and maintenance of entryways—such as vacuuming, mopping, and cleaning spills as necessary. If not, project teams should develop manuals that describe the process and frequency for cleaning the entryways. This provides cleaning personnel with guidelines for cleaning and maintaining entryway systems.
Make sure that the standard operating procedures submitted for IEQp3: Green Cleaning Policy and IEQc3.1: Green Cleaning—High Performance Cleaning Program address entryway maintenance. See the Documentation Toolkit for a sample green cleaning program template.
The Environmental Protection Agency, Green Seal, and CRI have published guidelines for writing standard operating procedures. (See Resources.)
Make sure the entryway system is right for climate conditions and doesn’t impede egress in case of fire or get in people’s way. In regions that experience frequent rain or snow, it will make sense to use absorbent mats to minimize the risk of slippage.
Purchasing or renting compliant entryway mats should not be very expensive, but prices can vary so check with local vendors. Installing new grilles and grates could entail substantial cost and is less likely to be pursued.
To document the credit provide a ground level floorplan that notes where the entryway mats are. Highlight emergency exits and infrequently used entryways and personal office entryways for which the mats are not provided. See the Documentation Toolkit for an example of this. You can also provide photos of entryway systems as supporting documentation if desired.
Follow your SOPs for entryway maintenance and keep a log of cleaning and maintenance frequency.
Excerpted from LEED 2009 for Existing Buildings: Operations & Maintenance
To reduce the exposure of building occupants and maintenance personnel to potentially hazardous chemical, biological and particulate contaminants, which adversely affect air quality, human health, building finishes, building systems and the environment.
Employ permanent entryway systems (grilles, grates, mats) at least 10 feet (3 meters) long in the primary direction of travel to capture dirt and particulates entering the building at all public entry points, and develop the associated cleaning strategies to maintain those entryway systems as well as exterior walkways. Public entryways that are not in use or serve only as emergency exits are excluded from the requirements, as are private offices.
Use grills, grates or mats to catch and hold dirt particles and prevent contamination of the building interior. Design exterior stone, brick or concrete surfaces to drain away from regularly used building entrances.
At public building entrances, install low-maintenance vegetation within the landscape design and avoid plants, including trees and shrubs that produce fruit, flowers or leaves that are likely to be tracked into the building. Select plants based on an integrated pest managementIntegrated pest management (IPM) is the coordinated use of knowledge about pests, the environment, and pest prevention and control methods to minimize pest infestation and damage by the most economical means while minimizing hazards to people, property, and the environment. (IPM) approach to eliminate pesticide applications that could be tracked into the building.
Provide a water spigot and electrical outlet at each public building entrance for maintenance and cleaning.
This document outlines the fundamental components of green cleaningGreen cleaning is the use of cleaning products and practices that have lower environmental impacts and more positive indoor air quality impacts than conventional products and practices. standard operation procedures.
This guidance document provides a standard working tool that can be used to document routine quality system management and technical activities.
CRI’s recommended cleaning procedures to extend the performance and appearance of carpet while maintaining a healthy indoor environment.
This spreadsheet categories dozens of specific space types according to how they should be applied under various IEQ credits. This document is essential if you have questions about how various unique space types should be treated.
Good text which describes how to use your cleaning program to protect human health and the environment. Please note: this book is out of print.
This book can help catapult you and your business to the forefront of the new "cleaning science". It is well-written and easy to understand. Complete with an extensive glossary, useful cleaning checklists, and helpful illustrations and fugures.
LEED Online documentation for achievement of IEQc3.5 on a certified Gold LEED-EBOMEBOM is an acronym for Existing Buildings: Operations & Maintenance, one of the LEED 2009 rating sytems. 2009 project.
Use this template as a guide for formalizing your green cleaningGreen cleaning is the use of cleaning products and practices that have lower environmental impacts and more positive indoor air quality impacts than conventional products and practices. practices into a comprehensive policy covering the requirements of IEQp3, IEQc3.1, and IEQc3.5.
To document the credit you will need to submit a floorplan like this one illustrating all public entry points and compliant trackoff systems.
The following links take you to the public, informational versions of the dynamic LEED Online forms for each EBOMEBOM is an acronym for Existing Buildings: Operations & Maintenance, one of the LEED 2009 rating sytems.-2009 IEQ credit. You'll need to fill out the live versions of these forms on LEED Online for each credit you hope to earn.
Version 4 forms (newest):
Version 3 forms:
These links are posted by LEEDuser with USGBC's permission. USGBC has certain usage restrictions for these forms; for more information, visit LEED Online and click "Sample Forms Download."
According to the latest Addenda the following statement, "Provide containment drains plumbed for appropriate disposal of hazardous liquid wastes in places where water and chemical concentrate mixing occurs for laboratory purposes." is no longer required. Yet, this same requirement is in latest reference guide (2010) and the LEED Online template.
Does anyone know if the chemical containment is still required for laboratory purposes?
Karin, we discuss this requirement above under the Bird's Eye View, but it was removed as of the July 2010 addendum you mention. Addenda alter the reference guide, so it's good to check any addenda posted after the publish date of the guide you're looking at. As for your LEED Online form, you may be looking at an older version, as these also go through updates. I would ask GBCI to update it via their contact form.
USGBC has replied that the LEED Online form for this issue will be adjusted in the next round of revisions.
We have a building where there is a revolving door flanked by two hinge doors. There are mats covering the entire width both outside (covered), and inside at 5' each, for a total of 10' in length. However, the revolving door in the middle does not allow for a circular mat to be installed because of clearance issues.
Would this configuration be ok as is, or will additional length need to be added to either the outdoor or interior mats for compliance?
This sounds like an acceptable approach. One word of caution is that appropriate cleaning activities should be in place for the exterior mats, since they're exposed to more weather and particulates than interior mats, even when covered. There are a couple of relevant FAQs above that can provide additional information and direct you to some LEED Interpretations that may be worth checking out.
We are installing mats at all the building's entrances. However, one of the entrances used for catering opens outwards, due to space issues, the mat cannot be installed directly next to the entrance, is it possible to leave a space of 3 ft away from the door's exit point and install the mat after that? This means that the person entering will walk over the mat for a distance of 10 ft, then he will walk over the ground for 3 ft before entering.
Dina, Are you able to place the mat inside the building, rather than outside? The reference guide states that the entryway systems must extend 10 feet from the building entrance to the building interior. Installing the mat outside, along with a 3 feet gap between the mat and the entrance, defeats the intent of this credit. You may be able to support the exterior mats if the area is covered and you have an extensive cleaning program of both the mat and the exterior walkway areas.
Carpet tile is now an acceptable entryway system per LEED InterpretationLEED Interpretations are official answers to technical inquiries about implementing LEED on a project. They help people understand how their projects can meet LEED requirements and provide clarity on existing options. LEED Interpretations are to be used by any project certifying under an applicable rating system. All project teams are required to adhere to all LEED Interpretations posted before their registration date. This also applies to other addenda. Adherence to rulings posted after a project registers is optional, but strongly encouraged. LEED Interpretations are published in a searchable database at usgbc.org. Ruling ID#10252 https://www.usgbc.org/leedinterpretations/LISearch.aspx?liaccessid=10252
Carpet tile is a highly desired walk-off mat due to its ease of maintenance as compared to mechanical systems, avoidance of trip hazards associated with roll-out mats, and many other factors. Carpet tile captures and hides soil, requires minimal maintenance and helps prevent slips and falls. The solid backing prevents soil and moisture from penetrating the tile and seams. Carpet tiles allow for easy replacement of damaged tiles.
The carpet tile must be specifically designed for entryway systems, conventional carpet is not acceptable.
I just read in the LEED EBOMEBOM is an acronym for Existing Buildings: Operations & Maintenance, one of the LEED 2009 rating sytems. submittal tips that teams should note that mats are required at loading dock entrances and at entrances from attached garages; this is also noted above. We are planning to install mats from the entrances into the building from the garage, but would we be required to provide mats at the loading dock in the attached garage? There are two entrances internally from the basement of the garage into the building, but not from the loading dock. Also, if following the logic that such an entrance into the parking garage would count, would every entrances into the parking garage need mats as well? Thanks for your insight!
*Also, could the team count this purchase toward a "durable goodsDurable goods have a useful life of 2 years or more and are replaced infrequently or may require capital program outlays. Examples include furniture, office equipment, appliances, external power adapters, televisions, and audiovisual equipment." purchase? While it isn't furniture, these mats will definitely be items purchased infrequently and seem to match the official definition...each one is likely to surpass $100, and the collection will be around or over $1,000 - thoughts? We will be disposing of the used mats sustainably as well, and hoping to count those toward MRc8...Thanks again for your thoughts -
Mats are only required for entrances into the building. Therefore, if there is no entrance into the building from the loading dock, you do not need a mat in the loading dock. It sounds like you need mats in the building entrances from the garage, but not every entrance into the parking garage.
As for your second question, I would document the mat purchase as a durable goodsDurable goods have a useful life of 2 years or more and are replaced infrequently or may require capital program outlays. Examples include furniture, office equipment, appliances, external power adapters, televisions, and audiovisual equipment. purchase as you suggested, assuming that is meets one or more of the sustainability criteria. However, why would you dispose of the mats? Typically mats are routinely maintained and cleaned, not disposed, especially if purchasing during the performance period.
Based on comments on this forum, I assumed it was okay to permanently install walk-off material. In my specific project, there was existing 'typical carpet' that we a) removed, b) recycled, and c) replaced with walk-off specific carpet to meet the intent of this credit. The walk-off material has a longer loop and rougher texture to effectivly capture particulates. We did this because the property manager did not find it aestictically acceptable to put an additional/removable walk-off mat on top of the existing carpet. This was done at extra expence and effort to the project.
The preliminary comment only requested that we distinguish systems from the other buildings submitted in the block because 'they looked identical'--lesson learned: do not submit as a block, it created more problems where the reviewer thought we only submitted data for one building (because the 4 buildings on a campus looked similar).
And then we got this comment in the final review:
"However, although the photographs identifyexterior grilles and interior mats, it is unclear thatthe installed entryway systems are compliant as it appears that permanently-installed carpet is being utilized as an entryway system. Typical buildingcarpeting does not satisfy the requirements of IEQc3.5, as it is not designed to effectively capture dirt, dust, pollen, and other particles entering thebuilding. The documentation does not demonstrate credit compliance."
This is very frustrating becasue we did the right thing, primarily to get the LEED point because this was a secondary entrance, and we still did not get recognized because the reviewer raised new comments in the final review--I didn't think they were allowed to do that. Similar to my comment in the IEQc3.2 forum, we will not appeal becasue we already achieved our desired level of Gold.
This is just a friendly warning to other project teams who are using permanently installed carpet/matting as a walk-off device. Be sure you provide manufacturer's data confirming that it is walk-off specific material...and beware of 'Review Team C'!
also, they would not let us count the recycled carpet in MRc9 because it didn't qualify as a 'facility alteration' as described in the introduciton of the rating system. Which again, is frustrating because we did the right thing, but are not getting any credit.
Alyson, I feel your pain! It can be very frustrating when you are doing the right thing, even go beyond the credit requirements, and not earn the point for your efforts. It seems the credit was denied because the reviewer did not understand that typical carpeting was replaced with walk-off mat material, but not because it was permanently installed. In fact, the credit requirements are to employ permanent entryway systems (grilles, grates, mats). Did you submit a cut sheet of the walk-off carpet material? I think this would have cleared up the confusion.
I am not surprised that the project did not receive credit for MRc9 though. A facility alternation is defined as an alternation that includes construction activity by more than 1 trade specialty and includes substantial changes to at least 1 entire room. Therefore carpet removal would be considered a minor upgrade. But at least you can feel good about keeping the old carpet out of landfill!
I wanted to post an important updated to this forum thread. In October 2012, USGBC published a LEED InterpretationLEED Interpretations are official answers to technical inquiries about implementing LEED on a project. They help people understand how their projects can meet LEED requirements and provide clarity on existing options. LEED Interpretations are to be used by any project certifying under an applicable rating system. All project teams are required to adhere to all LEED Interpretations posted before their registration date. This also applies to other addenda. Adherence to rulings posted after a project registers is optional, but strongly encouraged. LEED Interpretations are published in a searchable database at usgbc.org. that officially approves walk-off carpet tile as an acceptable entryway system. The Interpretation language can be found here: https://www.usgbc.org/leedinterpretations/LIDetails.aspx?liaccessid=10252.
The product must be "specifically designed for entryway system or similar use, have performance attributes equivalent to other acceptable entryway systems (such as high pile height), and must be regularly maintained". This ruling is applicable for all v2009 rating systems, including EBOMEBOM is an acronym for Existing Buildings: Operations & Maintenance, one of the LEED 2009 rating sytems., and similar language may find its way into the LEED v4 draft language.
For a building located in a tropical climate with an open- air lobby around the elevator banks, would indoor/outdoor carpeting completely under the cover of the building meet the requirements? People enter the very large carpeted lobby area from all directions since there are no true entryway doors. They must walk on the large carpeted area before getting on the elevators to reach the office floors above. The carpeting is vacuumed at least twice daily and deep-cleaned weekly.
Yes, I would say so. I would want to check that this carpeting does a good enough job at being a trackoff mat, and that no matter which direction someone is coming from, they walk over the required amount of mat.
An existing Hospital building has several 'main' entryways that are through stair towers. There is not anywhere near 10' available in these entryways which are located on landings (maybe 5'x8'). My question is, have you seen walk-off mat being carried on stairs? If we put mat on the stair treads down 5 steps and up 5 steps (so we would have the 10' distance for every travel option), this would work, no?
Has anyone else done this or see any reason this would not work?
I haven't seen this, but I don't see why it wouldn't be accepted. Another options is to use multiple mats to make up the full 10 feet. You mentioned that you have 8 feet on the landing before the stairs begin. If you put a separate 2 foot mat outside the door, and there is some sort of awning or overhang that would protect it from the elements, the combined coverage of the two separate mats would be acceptable.
I know the mat width is not required to cover the doorway width, but I have a 6' wide double doorway and wanted to see if I could turn my exisitng 4'x6' mats both indoor and outdoor to be length wise if that would constitute to 12' total and satisfy the credit?
From your description, it sounds like the total resulting coverage would be 8' wide (for a 6' door) and 12' long in the line of traffic. Is that right? Sounds good to me in terms of the credit requirements.
Be sure to address the indoor/outdoor issue that's been discussed in other threads here.
are entries from outdoor atria or open-air courtyards with no exits considered as entryways that require 10' enrtyway mats as well?
Since the credit language refers to "public entry points" I would assume that an internal courtyard would not be subject to the requirements.
I would recommend caution here since the intent of the credit is reduce/prevent the amount of particulate matter that is tracked into a building's interior on the occupants' shoes. If your open-air courtyard features landscaping, soil, gravel or any other type of material that could be carried into the building on a regular basis, I'd say that it would be important to have entryway mats at those building entrances. The key point here is that people are entering the building interior at these locations. "Public entry point" simply means that the entryway is not a private entrance used by a single individual or family; if these courtyards are accessible to any of your building occupants, they would be considered public entry points.
Thank you Tristan and Jason. Regards
I am working with a builidng that has a main entrance into the building with 10 feet of matting, however they have a first floor tenant that is a bank with its own independent entryway from the outdoors. Would the bank have to be in compliance with the 10 foot rule also, even if there are no entrances into the public areas of the building through the bank? Would the building be able to use an alternative approach if the entrance is controlled by the tenant and not the property management team?
Chris, the credit requirements seem pretty clear here, that all public entryway points for the building are subject to the requirement.
Is the bank involved in the EBOMEBOM is an acronym for Existing Buildings: Operations & Maintenance, one of the LEED 2009 rating sytems. project? Might be tough to do without their cooperation.
This is a really good question. Some of our first floor tenants are not participating in LEED EBOMEBOM is an acronym for Existing Buildings: Operations & Maintenance, one of the LEED 2009 rating sytems.. They represent 10% of the square footage of the building that is exempt. As such, I would assume their entryways do not need 10 foot mats. Is that correct?
Wendy, IEQc3.5 is not that cut and dry here regarding the 10% exception. This could be one of those credits that "require commitment and cooperation from tenants" especially since the requirement is for at all public entry points.
That being said, however, all credits do offer a 10% exception, but not all credits contain that option in the LEED Credit Form. The IEQc3.5 form states in the required signatory "at all
entryways in the project building, except those not in use over the performance period..."
So, if your circumstance is sticky (e.g., the first floor tenant has public entry way into the lobby of the main building from the tenant spaceTenant space is the area within the LEED project boundary. For more information on what can and must be in the LEED project boundary see the Minimum Program Requirements (MPRs) and LEED 2009 MPR Supplemental Guidance. Note: tenant space is the same as project space.) you should expect to either try out your strategy through a CIR or be prepared for clarifications during the review process. Or, if you would have concern about not being read clearly by the reviewer, an alternative compliance path could be selected where the project team would submit a floor plan which highlights all entryways and installed entryway
systems, and marks any entryways not in use over the performance period (the tenant excepted spaces included) or that serve only as emergency exits.
My project has a small vestibule inside the front door. Can the 10 feet of walk-off mats be in 2 sections that are perpendicular? As in, you hit one mat in the vestibule, turn 90 degrees and hit the other mat (totaling 10 feet)...
The IEQc3.5 credit language specifies "in the primary direction of travel," so this should work fine as long as the perpendicular route is in the line of travel, i.e. that someone entering the building basically has no choice but to walk the full 10 feet. If they could cut a corner and walk only 5 or 8 feet of it, I might have concerns.
Thanks, Tristan. One other nuance ... are there any mat requirements, in terms of backing, pile, material, etc. ??
No, I don't know of any specific requirements. The key thing would be whether the mat was made for that purpose and is effective in the building.
Hi Tristan, Along the lines of the mat requirements Jared mentioned, I cannot find anywhere under the EBOMEBOM is an acronym for Existing Buildings: Operations & Maintenance, one of the LEED 2009 rating sytems. system the requirement for the carpet system to be certified by the Carpet & Rug Institute - is that low emitting flooring/carpets credit not applicable for Exiting Buildings? Would installing new matting that is certified and/or increased to ten feet qualify for EBOM 2009 IEQ1.5 as an alteration (adding the extra feet) or as an addition (getting new carpet that is certified by the CRIColor-rendering index, or CRI, is a scale of 0 to 100, used by manufacturers of fluorescent, metal halide, and other non-incandescent lighting equipment to describe the visual effect of the light on colored surfaces. Natural daylight is assigned a CRI of 100. or equivalent). I know there needs to be an additional trade change besides just the matting...thanks!
Use of carpeting that meets CRIColor-rendering index, or CRI, is a scale of 0 to 100, used by manufacturers of fluorescent, metal halide, and other non-incandescent lighting equipment to describe the visual effect of the light on colored surfaces. Natural daylight is assigned a CRI of 100. Green Label standards is actually rewarded elsewhere in EBOMEBOM is an acronym for Existing Buildings: Operations & Maintenance, one of the LEED 2009 rating sytems., specifically under MRc3 - Sustainable Purchasing, Facility Alterations and Additions. Replacement of carpeting in a project building alone would not meet the LEED definition of "facility alteration or addition"; a renovation project must employ more than one trade, so for example, painting and new carpeting could qualify a project for MRc3 (and MRc9).
Any project can attempt EQc1.5, because all that credit requires is that you develop an Construction IAQ Management PlanA construction IAQ management plan outlines measures to minimize contamination in a specific project building during construction and describes procedures to flush the building of contaminants prior to occupancy. for future renovation projects. If you also attempt MRc3, you'll need to explicitly document that your Plan was executed throughout the performance period to meet the compliance criteria.
As far as EQc3.5 goes, the key requirement for entryway systems is that the material used is classified as a walk-off mat surface. There are some carpet materials available that may meet this criteria; however, whether or not the carpet is CRI Green Label certified would have no bearing on compliance with EQc3.5.
Was your perpendicular strategy approved?
I am wondering what the appropriate approach is for a residential multi family project for this credit. Since the LEED EB system is set up for Commercial Buildings and assumes that there are hard surface floors that significant amounts of people are entering upon, we feel that a residential project shouldn't be required to have the same level of entryway systems(10' at every entrance). Our project has about 25 different entrances when you include those through private garages, structured parking, and the many entrances to the individual apartment units in the building (there is about 1 entrance per 6 units in the main buildings, excluding the garage entrances, and the project has about 78 total units). All floor surfaces have carpet on them and have 2'10" grills installed at the entryways. The carpets are cleaned daily by the cleaning staff. I believe the LEED for Homes Rating System requires only 4' entryway systems. Can you provide some advice as to the following:
1) In a residential setting, is carpet and a 2'10" grill acceptable to achieve this credit instead of 10' mats or grills? If not, what is the minimum entryway system we need at each entry?
2) Do we need entryway systems at every one of the 25 or so entrances? If not, how do we determine which entrances do need to have LEED qualifying entryway systems?
Any advice on the correct approach for our project to take would be greatly appreciated.
Hi Tom -
From what I've seen, you need to comply with the requirements as stated, which means that you will need 10 feet of entryway systems at all entrances. You likely know this, but you can use a combination of entryway systems inside and outside each door to meet the 10 foot requirement.
However, you do raise an excellent question as to the requirements for residential projects, as this is not well addressed in the Reference Guide for many of the LEED-EB: O&M credits, though there are relevant CIRs for some credits. It seems to me that submitting a CIR is your best path. Otherwise, it may be that this credit just might not be appropriate for your particular project type.
Sustainability Operations Director, East Coast
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