ad-100000892
Replace section with that of the supplementary document.
NC-2009 IEQc8.1: Daylight and Views—Daylight
LEEDuser overview
Frank advice from LEED experts
LEED is changing all the time, and every project is unique. Even seasoned professionals can miss a critical detail and lose a credit or even a prerequisite at the last minute. Our expert advice guides our LEEDuser Premium members and saves you valuable time.
For full access, sign up now for LEEDuser Premium
Already a premium member? Log in now
Credit language
© Copyright U.S. Green Building Council, Inc. All rights reserved.
Requirements
Through 1 of the 4 options, achieve daylighting in at least the following spaces1:
|
|
|
|
75% |
1 |
Option 1. Simulation
Demonstrate through computer simulation that the applicable spaces achieve daylight illuminance levels of a minimum of 10 footcandles (fc) (108 lux) and a maximum of 500 fc (5,400 lux) in a clear sky condition on September 21 at 9 a.m. and 3 p.m. Provide glare control devices to avoid high-contrast situations that could impede visual tasks. However, designs that incorporate view-preserving automated shades for glare control may demonstrate compliance for only the minimum 10 fc (108 lux) illuminance level.OPTION 2. Prescriptive
Use a combination of sidelighting and/or toplighting to achieve a total daylighting zone (the floor area meeting the following requirements) that is at least 75% of all the regularly occupied spaces. For sidelighting zones:- Achieve a value, calculated as the product of the visible light transmittance (VLT) and window-to-floor area ratio (WFR) of daylight zone between 0.150 and 0.180.
- The window area included in the calculation must be at least 30 inches (0.8 meters) above the floor.
- In section, the ceiling must not obstruct a line that extends from the window-head to a point on the floor that is located twice the height of the window-head from the exterior wall as measured perpendicular to the glass (see diagram on the next page).
- Provide glare control devices to avoid high-contrast situations that could impede visual tasks. However, designs that incorporate view-preserving automated shades for glare control may demonstrate compliance for only the minimum 0.150 value.
|
0.150 |
|
VLT |
x |
WFR |
|
0.180 |
- The toplighting zone under a skylight is the outline of the opening beneath the skylight, plus in each direction
the lesser of (see diagram below):
- 70% of the ceiling height,
- 1/2 the distance to the edge of the nearest skylight
- The distance to any permanent partition that is closer than 70% of the distance between the top of the partition and the ceiling.
- Achieve skylight coverage for the applicable space (containing the toplighting zone) between 3% and 6% of the total floor area.
- The skylight must have a minimum 0.5 VLT.
- A skylight diffuser, if used, must have a measured haze value of greater than 90% when tested according to ASTM D1003.
Option 3. Measurement
Demonstrate through records of indoor light measurements that a minimum daylight illumination level of 10 fc (108 lux) and a maximum of 500 fc (5,400 lux) has been achieved in the applicable spaces. Measurements must be taken on a 10-foot (3-meter) grid and shall be recorded on building floor plans. Provide glare control devices to avoid high-contrast situations that could impede visual tasks. However, designs that incorporate view-preserving automated shades for glare control may demonstrate compliance for only the minimum 10 fc (108 lux) illuminance level.Option 4. Combination
Any of the above calculation methods may be combined to document the minimum daylight illumination in the applicable spaces. See all forum discussions about this credit »Frequently asked questions
When should daylight measurements be taken?The answer to this question is available to LEEDuser premium members. Start a free trial » (If you're already a premium member, log in here.) |
Do I need to have glare control devices?The answer to this question is available to LEEDuser premium members. Start a free trial » (If you're already a premium member, log in here.) |
Where can I find the Supplemental Views and Daylight Calculator?The answer to this question is available to LEEDuser premium members. Start a free trial » (If you're already a premium member, log in here.) |
Do I need to submit the Supplemental Views and Daylight Calculator?The answer to this question is available to LEEDuser premium members. Start a free trial » (If you're already a premium member, log in here.) |
Can I average the compliant square footage between 9 a.m. and 3 p.m. for a space and use the average as the compliant square footage?The answer to this question is available to LEEDuser premium members. Start a free trial » (If you're already a premium member, log in here.) |
Can I use Option 2: Prescriptive method if I have....?The answer to this question is available to LEEDuser premium members. Start a free trial » (If you're already a premium member, log in here.) |
What does it cost?
Cost estimates for this credit
On each BD+C v4 credit, LEEDuser offers the wisdom of a team of architects, engineers, cost estimators, and LEED experts with hundreds of LEED projects between then. They analyzed the sustainable design strategies associated with each LEED credit, but also to assign actual costs to those strategies.
Our tab contains overall cost guidance, notes on what “soft costs” to expect, and a strategy-by-strategy breakdown of what to consider and what it might cost, in percentage premiums, actual costs, or both.
This information is also available in a full PDF download in The Cost of LEED v4 report.
Learn more about The Cost of LEED v4 »For full access, sign up now for LEEDuser Premium
Already a premium member? Log in now
Checklists
Step by step to LEED certification
LEEDuser’s checklists walk you through the key action steps you need to earn a credit, including how to avoid common pitfalls and save money.
For full access, sign up now for LEEDuser Premium
Already a premium member? Log in now
Documentation toolkit
The motherlode of cheat sheets
LEEDuser’s Documentation Toolkit is loaded with calculators to help assess credit compliance, tracking spreadsheets for materials, sample templates to help guide your narratives and LEED Online submissions, and examples of actual submissions from certified LEED projects for you to check your work against. To get your plaque, start with the right toolkit.
For full access, sign up now for LEEDuser Premium
Already a premium member? Log in now
Addenda
09/05/2011– Updated: 03/12/2020
Reference Guide Correction
Description of change:
Inquiry:
Ruling:
Campus Applicable
No
Internationally Applicable:
No
15/01/2016– Updated: 07/04/2016
Form Update
Description of change:
Inquiry:
Ruling:
Campus Applicable
No
Internationally Applicable:
No
01/11/2011– Updated: 14/02/2015
Reference Guide Correction
Description of change:
ad-100001127
Revise the definition for regularly occupied spaces to be, "Regularly 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."
Inquiry:
Ruling:
Campus Applicable
No
Internationally Applicable:
No
02/12/2009– Updated: 14/02/2015
Reference Guide Correction
Description of change:
ad-100000438
Insert the term "Bay" in alphabetical order with the accompanying text "A bay is a component of a standard, rectilinear building design. It is the open area defined by a building element such as columns or a window. Typically, there are multiple identical bays in succession."
Inquiry:
Ruling:
Campus Applicable
No
Internationally Applicable:
No
01/02/2010– Updated: 14/02/2015
Reference Guide Correction
Description of change:
ad-100000435
In the third line, replace "2" with "5" so the text becomes "Figure 5 illustrates..."
Inquiry:
Ruling:
Campus Applicable
No
Internationally Applicable:
No
01/11/2011– Updated: 14/02/2015
Reference Guide Correction
Description of change:
ad-100001102
In alphabetical order, add the following definition for non-regularly occupied space, "Non-regularly occupied spaces are spaces that occupants pass through, or spaces used in pursuit of focused activities for less than one hour per person per day (on average)."
Inquiry:
Ruling:
Campus Applicable
No
Internationally Applicable:
No
01/02/2010– Updated: 14/02/2015
Reference Guide Correction
Description of change:
ad-100000437
In the third line of the fourth bulleted item, replace "4" with "3" so the text becomes "See Table 3"
Inquiry:
Ruling:
Campus Applicable
No
Internationally Applicable:
No
01/11/2011– Updated: 14/02/2015
Reference Guide Correction
Description of change:
ad-100001111
In alphabetical order, add the following definition for nonoccupied spaces, "Nonoccupied spaces are defined as spaces designed for equipment and machinery or storage with no human occupancy except for maintenance, repairs, and equipment retrieval."
Inquiry:
Ruling:
Campus Applicable
No
Internationally Applicable:
No
01/02/2010– Updated: 14/02/2015
Reference Guide Correction
Description of change:
ad-100000436
In the fourth line of the paragraph, replace "3" with "2" so the text becomes "See Figure 2"
Inquiry:
Ruling:
Campus Applicable
No
Internationally Applicable:
No
01/11/2011– Updated: 14/02/2015
Reference Guide Correction
Description of change:
ad-100001094
In alphabetical order, add the following definition for occupied spaces, "Occupied 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."
Inquiry:
Ruling:
Campus Applicable
No
Internationally Applicable:
No
01/04/2013
LEED Interpretation
Description of change:
Inquiry:
The project team would like to exclude laboratory spaces from the list of regularly occupied spaces for the Daylighting and Views calculations. The laboratory spaces are separated from other building areas but efforts have been made to provide exterior views out of the lab spaces by providing fire rated windows around the lab into the surrounding hallways and drive aisle. The laboratory areas will be used solely for research and development purposes and for proprietary reasons & secrecy concerns of the areas, exterior windows have been specifically excluded from these rooms as they will be secure internal rooms being used by a very small percentage of the building occupants.
Ruling:
"The project team is requesting that laboratory spaces be excluded from the requirements for daylight and views (credits IEQc8.1 Daylight and Views: Daylight, IEQc8.2 Daylight and Views, and IEQc2.4: Daylight and Views.) for security reasons and/or due to infrequency of use.
No, the laboratory spaces may not be excluded from daylight and views. It is unacceptable to exclude spaces from the daylight and views calculations due to security reasons. Additionally, based on the information provided, the laboratory spaces may not be excluded for infrequency of use because the spaces are typically occupied for more than one hour per day. The percentage of building occupants using the space is irrelevant. The frequency of use for regularly occupied spaces was further clarified in the definition of a regularly occupied space included in the LEED Reference Guide for Green Building Design and Construction, 2009 Edition addenda dated 11/1/2011 which states that regularly 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."" Applicable Internationally."
Campus Applicable
No
Internationally Applicable:
Yes
10/04/2007
LEED Interpretation
Description of change:
Inquiry:
One wall of our building is a curtain wall. This curtain wall contains 4 different types of glazing, each with a different visible transmittance value, all within one room. We propose using the average visible transmittance value of the four types of glazing to do daylighting calculations for areas adjacent to the curtain wall. Please advise whether this approach is acceptable.
Ruling:
No, the method described of taking the overall average visible transmittance value of all four types of glazing within the curtain wall and using it for all areas adjacent to the curtain wall is not an acceptable means of calculating the daylight factor of the areas in question. However, doing a weighted average of the visible transmittance value (Tvis) of all the glazing classified as daylight glazing and a weighted average of the visible transmittance values of all the glazing classified as vision glazing on a room by room basis would be acceptable. This methodology would effectively take into account the window geometry and associated minimum visible transmittance values. Alternatively, the project team may elect to perform a daylight simulation model to demonstrate credit compliance. See the LEED NC v2.1 EQc8.1 ruling dated 6/21/2004 for guidance on pursuing this approach. Applicable Internationally.
Campus Applicable
No
Internationally Applicable:
Yes
01/10/2012
LEED Interpretation
Description of change:
Inquiry:
We would like to submit a CIR to request a streamlined approach for the daylight documentation. We have the particular condition of an identical cluster of office buildings. In spite of having the same foot print, each building will be uniquely impacted by orientation variation and specific surrounding context condition. The intent is to fully document one building showing that the amount of light increases as you move up through the floor plates. Then to proceed to document the worst case scenario of each building (ground floor) or the level that is least exposed to solar access. If the worst case scenario passes, then we infer based on our test case that the upper floors of the building will pass as well. This will help us streamline not only the documentation process for so many buildings but also the review process. Is this an acceptable documentation method for this credit?
Ruling:
The project team is requesting whether a campus credit may be pursued for IEQc8.1. Daylight and Views: Daylight through a typical floor plan and worst case scenario daylight calculations.Yes, the typical floor plan and worst-case scenario daylight calculations may be used for the campus credit and applied to all buildings within the master site that have identical floor plans. The 2010 Application Guide for Multiple Buildings and On-Campus Projects identifies IEQc8.1 as an individual building credit and states that each building should pursue the credit individually. However, in the same way that a multi-story building may provide a single floor plan for each grouping of identical floors, if buildings within the Master Site are identical, the same documentation may be used for each identical building. Any of the calculation methods (simulation, prescriptive, measurement) may be used. Documentation for the campus credit and associated projects must demonstrate how the worst case scenario was determined and that the only difference in the buildings is the orientation on the site. The footprint, square footage and interior layout of the buildings must be identical. Applicable Internationally.
Campus Applicable
No
Internationally Applicable:
Yes
LEEDuser overview
Frank advice from LEED experts
LEED is changing all the time, and every project is unique. Even seasoned professionals can miss a critical detail and lose a credit or even a prerequisite at the last minute. Our expert advice guides our LEEDuser Premium members and saves you valuable time.
For full access, sign up now for LEEDuser Premium
Already a premium member? Log in now
Credit language
© Copyright U.S. Green Building Council, Inc. All rights reserved.
Requirements
Through 1 of the 4 options, achieve daylighting in at least the following spaces1:
|
|
|
|
75% |
1 |
Option 1. Simulation
Demonstrate through computer simulation that the applicable spaces achieve daylight illuminance levels of a minimum of 10 footcandles (fc) (108 lux) and a maximum of 500 fc (5,400 lux) in a clear sky condition on September 21 at 9 a.m. and 3 p.m. Provide glare control devices to avoid high-contrast situations that could impede visual tasks. However, designs that incorporate view-preserving automated shades for glare control may demonstrate compliance for only the minimum 10 fc (108 lux) illuminance level.OPTION 2. Prescriptive
Use a combination of sidelighting and/or toplighting to achieve a total daylighting zone (the floor area meeting the following requirements) that is at least 75% of all the regularly occupied spaces. For sidelighting zones:- Achieve a value, calculated as the product of the visible light transmittance (VLT) and window-to-floor area ratio (WFR) of daylight zone between 0.150 and 0.180.
- The window area included in the calculation must be at least 30 inches (0.8 meters) above the floor.
- In section, the ceiling must not obstruct a line that extends from the window-head to a point on the floor that is located twice the height of the window-head from the exterior wall as measured perpendicular to the glass (see diagram on the next page).
- Provide glare control devices to avoid high-contrast situations that could impede visual tasks. However, designs that incorporate view-preserving automated shades for glare control may demonstrate compliance for only the minimum 0.150 value.
|
0.150 |
|
VLT |
x |
WFR |
|
0.180 |
- The toplighting zone under a skylight is the outline of the opening beneath the skylight, plus in each direction
the lesser of (see diagram below):
- 70% of the ceiling height,
- 1/2 the distance to the edge of the nearest skylight
- The distance to any permanent partition that is closer than 70% of the distance between the top of the partition and the ceiling.
- Achieve skylight coverage for the applicable space (containing the toplighting zone) between 3% and 6% of the total floor area.
- The skylight must have a minimum 0.5 VLT.
- A skylight diffuser, if used, must have a measured haze value of greater than 90% when tested according to ASTM D1003.
Option 3. Measurement
Demonstrate through records of indoor light measurements that a minimum daylight illumination level of 10 fc (108 lux) and a maximum of 500 fc (5,400 lux) has been achieved in the applicable spaces. Measurements must be taken on a 10-foot (3-meter) grid and shall be recorded on building floor plans. Provide glare control devices to avoid high-contrast situations that could impede visual tasks. However, designs that incorporate view-preserving automated shades for glare control may demonstrate compliance for only the minimum 10 fc (108 lux) illuminance level.Option 4. Combination
Any of the above calculation methods may be combined to document the minimum daylight illumination in the applicable spaces. See all forum discussions about this credit »Checklists
Step by step to LEED certification
LEEDuser’s checklists walk you through the key action steps you need to earn a credit, including how to avoid common pitfalls and save money.
For full access, sign up now for LEEDuser Premium
Already a premium member? Log in now
Documentation toolkit
The motherlode of cheat sheets
LEEDuser’s Documentation Toolkit is loaded with calculators to help assess credit compliance, tracking spreadsheets for materials, sample templates to help guide your narratives and LEED Online submissions, and examples of actual submissions from certified LEED projects for you to check your work against. To get your plaque, start with the right toolkit.
For full access, sign up now for LEEDuser Premium
Already a premium member? Log in now
Frequently asked questions
When should daylight measurements be taken?The answer to this question is available to LEEDuser premium members. Start a free trial » (If you're already a premium member, log in here.) |
Do I need to have glare control devices?The answer to this question is available to LEEDuser premium members. Start a free trial » (If you're already a premium member, log in here.) |
Where can I find the Supplemental Views and Daylight Calculator?The answer to this question is available to LEEDuser premium members. Start a free trial » (If you're already a premium member, log in here.) |
Do I need to submit the Supplemental Views and Daylight Calculator?The answer to this question is available to LEEDuser premium members. Start a free trial » (If you're already a premium member, log in here.) |
Can I average the compliant square footage between 9 a.m. and 3 p.m. for a space and use the average as the compliant square footage?The answer to this question is available to LEEDuser premium members. Start a free trial » (If you're already a premium member, log in here.) |
Can I use Option 2: Prescriptive method if I have....?The answer to this question is available to LEEDuser premium members. Start a free trial » (If you're already a premium member, log in here.) |
Addenda
09/05/2011– Updated: 03/12/2020
Reference Guide Correction
Description of change:
ad-100000892
Replace section with that of the supplementary document.
Inquiry:
Ruling:
Campus Applicable
No
Internationally Applicable:
No
15/01/2016– Updated: 07/04/2016
Form Update
Description of change:
Inquiry:
Ruling:
Campus Applicable
No
Internationally Applicable:
No
01/11/2011– Updated: 14/02/2015
Reference Guide Correction
Description of change:
ad-100001127
Revise the definition for regularly occupied spaces to be, "Regularly 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."
Inquiry:
Ruling:
Campus Applicable
No
Internationally Applicable:
No
02/12/2009– Updated: 14/02/2015
Reference Guide Correction
Description of change:
ad-100000438
Insert the term "Bay" in alphabetical order with the accompanying text "A bay is a component of a standard, rectilinear building design. It is the open area defined by a building element such as columns or a window. Typically, there are multiple identical bays in succession."
Inquiry:
Ruling:
Campus Applicable
No
Internationally Applicable:
No
01/02/2010– Updated: 14/02/2015
Reference Guide Correction
Description of change:
ad-100000435
In the third line, replace "2" with "5" so the text becomes "Figure 5 illustrates..."
Inquiry:
Ruling:
Campus Applicable
No
Internationally Applicable:
No
01/11/2011– Updated: 14/02/2015
Reference Guide Correction
Description of change:
ad-100001102
In alphabetical order, add the following definition for non-regularly occupied space, "Non-regularly occupied spaces are spaces that occupants pass through, or spaces used in pursuit of focused activities for less than one hour per person per day (on average)."
Inquiry:
Ruling:
Campus Applicable
No
Internationally Applicable:
No
01/02/2010– Updated: 14/02/2015
Reference Guide Correction
Description of change:
ad-100000437
In the third line of the fourth bulleted item, replace "4" with "3" so the text becomes "See Table 3"
Inquiry:
Ruling:
Campus Applicable
No
Internationally Applicable:
No
01/11/2011– Updated: 14/02/2015
Reference Guide Correction
Description of change:
ad-100001111
In alphabetical order, add the following definition for nonoccupied spaces, "Nonoccupied spaces are defined as spaces designed for equipment and machinery or storage with no human occupancy except for maintenance, repairs, and equipment retrieval."
Inquiry:
Ruling:
Campus Applicable
No
Internationally Applicable:
No
01/02/2010– Updated: 14/02/2015
Reference Guide Correction
Description of change:
ad-100000436
In the fourth line of the paragraph, replace "3" with "2" so the text becomes "See Figure 2"
Inquiry:
Ruling:
Campus Applicable
No
Internationally Applicable:
No
01/11/2011– Updated: 14/02/2015
Reference Guide Correction
Description of change:
ad-100001094
In alphabetical order, add the following definition for occupied spaces, "Occupied 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."
Inquiry:
Ruling:
Campus Applicable
No
Internationally Applicable:
No
01/04/2013
LEED Interpretation
Description of change:
Inquiry:
The project team would like to exclude laboratory spaces from the list of regularly occupied spaces for the Daylighting and Views calculations. The laboratory spaces are separated from other building areas but efforts have been made to provide exterior views out of the lab spaces by providing fire rated windows around the lab into the surrounding hallways and drive aisle. The laboratory areas will be used solely for research and development purposes and for proprietary reasons & secrecy concerns of the areas, exterior windows have been specifically excluded from these rooms as they will be secure internal rooms being used by a very small percentage of the building occupants.
Ruling:
"The project team is requesting that laboratory spaces be excluded from the requirements for daylight and views (credits IEQc8.1 Daylight and Views: Daylight, IEQc8.2 Daylight and Views, and IEQc2.4: Daylight and Views.) for security reasons and/or due to infrequency of use.
No, the laboratory spaces may not be excluded from daylight and views. It is unacceptable to exclude spaces from the daylight and views calculations due to security reasons. Additionally, based on the information provided, the laboratory spaces may not be excluded for infrequency of use because the spaces are typically occupied for more than one hour per day. The percentage of building occupants using the space is irrelevant. The frequency of use for regularly occupied spaces was further clarified in the definition of a regularly occupied space included in the LEED Reference Guide for Green Building Design and Construction, 2009 Edition addenda dated 11/1/2011 which states that regularly 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."" Applicable Internationally."
Campus Applicable
No
Internationally Applicable:
Yes
10/04/2007
LEED Interpretation
Description of change:
Inquiry:
One wall of our building is a curtain wall. This curtain wall contains 4 different types of glazing, each with a different visible transmittance value, all within one room. We propose using the average visible transmittance value of the four types of glazing to do daylighting calculations for areas adjacent to the curtain wall. Please advise whether this approach is acceptable.
Ruling:
No, the method described of taking the overall average visible transmittance value of all four types of glazing within the curtain wall and using it for all areas adjacent to the curtain wall is not an acceptable means of calculating the daylight factor of the areas in question. However, doing a weighted average of the visible transmittance value (Tvis) of all the glazing classified as daylight glazing and a weighted average of the visible transmittance values of all the glazing classified as vision glazing on a room by room basis would be acceptable. This methodology would effectively take into account the window geometry and associated minimum visible transmittance values. Alternatively, the project team may elect to perform a daylight simulation model to demonstrate credit compliance. See the LEED NC v2.1 EQc8.1 ruling dated 6/21/2004 for guidance on pursuing this approach. Applicable Internationally.
Campus Applicable
No
Internationally Applicable:
Yes
01/10/2012
LEED Interpretation
Description of change:
Inquiry:
We would like to submit a CIR to request a streamlined approach for the daylight documentation. We have the particular condition of an identical cluster of office buildings. In spite of having the same foot print, each building will be uniquely impacted by orientation variation and specific surrounding context condition. The intent is to fully document one building showing that the amount of light increases as you move up through the floor plates. Then to proceed to document the worst case scenario of each building (ground floor) or the level that is least exposed to solar access. If the worst case scenario passes, then we infer based on our test case that the upper floors of the building will pass as well. This will help us streamline not only the documentation process for so many buildings but also the review process. Is this an acceptable documentation method for this credit?
Ruling:
The project team is requesting whether a campus credit may be pursued for IEQc8.1. Daylight and Views: Daylight through a typical floor plan and worst case scenario daylight calculations.Yes, the typical floor plan and worst-case scenario daylight calculations may be used for the campus credit and applied to all buildings within the master site that have identical floor plans. The 2010 Application Guide for Multiple Buildings and On-Campus Projects identifies IEQc8.1 as an individual building credit and states that each building should pursue the credit individually. However, in the same way that a multi-story building may provide a single floor plan for each grouping of identical floors, if buildings within the Master Site are identical, the same documentation may be used for each identical building. Any of the calculation methods (simulation, prescriptive, measurement) may be used. Documentation for the campus credit and associated projects must demonstrate how the worst case scenario was determined and that the only difference in the buildings is the orientation on the site. The footprint, square footage and interior layout of the buildings must be identical. Applicable Internationally.
Campus Applicable
No
Internationally Applicable:
Yes