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Credit language
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© Copyright U.S. Green Building Council, Inc. All rights reserved.
Requirements
Provide access to views that meet the following criteria below.
INPATIENT UNITS (1 point)
A minimum of 90% of the inpatient units, staff areas, and public areas shall be within 20 feet—or twice the window head height, whichever is smaller—of the perimeter. All such perimeter areas must have windows that provide at least an 11° angle of unobstructed view in the vertical and horizontal direction.NON-INPATIENT AREAS (1-2 points)
In the block planning stage, configure the building floor plates such that the area within 15 feet of the perimeter exceeds the perimeter area requirement as determined by the table outlined below. Confirm at the conclusion of detailed planning that 90% of the perimeter rooms have windows that provide at least an 11° angle of unobstructed view in the vertical and horizontal direction.Perimeter Non-IPU Area with Window Access Required
|
||||||
---|---|---|---|---|---|---|
Floor plate area (bgsf) |
Threshold A: |
Threshold B: |
Floor plate area (bgm2) |
Threshold A: |
Threshold B: |
|
Up to 15,000 |
7348 |
8248 |
Up to 1,395 |
683 |
766 |
|
20,000 |
8785 |
9985 |
1,800 |
816 |
928 |
|
25,000 |
10087 |
11587 |
2,325 |
937 |
1076 |
|
30,000 |
11292 |
13092 |
2,785 |
1,049 |
1,216 |
|
35,000 |
12425 |
14525 |
3,250 |
1,154 |
1,350 |
|
40,000 |
13500 |
15900 |
3,715 |
1,254 |
1,477 |
|
45,000 |
14528 |
17228 |
4,180 |
1,350 |
1,601 |
|
50,000 and larger |
15516 |
18516 |
4,600 and larger |
1,441 |
1,720 |
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 »Frequently asked questions
See all forum discussions about this credit »Addenda
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?
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.
The LEED Reference Guide for Green Building Design and Construction, 2009 Edition and LEED Reference Guide for Green Interior Design and Construction, 2009 Edition indicate the following instructions for determining the direct line of sight in section view. "Using representative building sections, draw a line at 42 inches (typical seated eye height) across the section to establish eye height and any obstruction to the perimeter glazing, Draw one or more representative sight lines from a point at eye height in the regularly occupied space to the perimeter vision glazing."Is the direct line of sight drawn from the area to the perimeter vision glazing in section view required to be a horizontal line at 42 inches above the finished floor? Can the direct line of sight slope from 42 inches at the seated area to any location within the vision glazing?
To determine direct lines of sight in section, provide one or more representative sight lines from a point at eye height (42 inches) in the regularly occupied space to perimeter vision glazing between 30 inches and 90 inches above the finished floor of the building. The direct line of sight may be slope from 42 inches at the seated area to any unobstructed area of the vision glazing. The direct line of sight is not required to be horizontal at 42 inches only. Internationally Applicable.
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![USGBC logo](/sites/all/themes/leeduser/images/usgbc_170.png)
© Copyright U.S. Green Building Council, Inc. All rights reserved.
Requirements
Provide access to views that meet the following criteria below.
INPATIENT UNITS (1 point)
A minimum of 90% of the inpatient units, staff areas, and public areas shall be within 20 feet—or twice the window head height, whichever is smaller—of the perimeter. All such perimeter areas must have windows that provide at least an 11° angle of unobstructed view in the vertical and horizontal direction.NON-INPATIENT AREAS (1-2 points)
In the block planning stage, configure the building floor plates such that the area within 15 feet of the perimeter exceeds the perimeter area requirement as determined by the table outlined below. Confirm at the conclusion of detailed planning that 90% of the perimeter rooms have windows that provide at least an 11° angle of unobstructed view in the vertical and horizontal direction.Perimeter Non-IPU Area with Window Access Required
|
||||||
---|---|---|---|---|---|---|
Floor plate area (bgsf) |
Threshold A: |
Threshold B: |
Floor plate area (bgm2) |
Threshold A: |
Threshold B: |
|
Up to 15,000 |
7348 |
8248 |
Up to 1,395 |
683 |
766 |
|
20,000 |
8785 |
9985 |
1,800 |
816 |
928 |
|
25,000 |
10087 |
11587 |
2,325 |
937 |
1076 |
|
30,000 |
11292 |
13092 |
2,785 |
1,049 |
1,216 |
|
35,000 |
12425 |
14525 |
3,250 |
1,154 |
1,350 |
|
40,000 |
13500 |
15900 |
3,715 |
1,254 |
1,477 |
|
45,000 |
14528 |
17228 |
4,180 |
1,350 |
1,601 |
|
50,000 and larger |
15516 |
18516 |
4,600 and larger |
1,441 |
1,720 |