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LEED v2009
Healthcare
Indoor Environmental Quality
Daylight and views - views

LEED CREDIT

Healthcare-v2009 IEQc8.2: Daylight and views - views 1-3 points

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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:
1 point

Threshold B:
2 points

Floor plate area (bgm2)

Threshold A:
1 point

Threshold B:
2 points

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

For both in-patient and non-inpatient areas, portions of side lit areas beyond the 15’ view area boundary that meet the requirements of IEQ Credit 8.1: Daylight and Views—Daylight may be included in the qualifying areas of this credit. For calculation methodology for floor plates that vary in size and configuration, see the LEED Reference Guide for Green Building Design & Construction, 2009 Edition Healthcare Supplement. See all forum discussions about this credit »

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Addenda

1/15/2016Updated: 4/7/2016
Form Update
Description of change:
Campus Applicable
No
Internationally Applicable:
No
5/9/2011Updated: 2/14/2015
Reference Guide Correction
Description of change:
In the first paragraph, replace the text "Movable furniture and partitions are included in the scope of this credit calculation. See Figure 2." with "Movable furniture and partitions are not included in the scope of this credit calculation. See Figure 2. Movable furniture and partitions are those that can
Campus Applicable
No
Internationally Applicable:
No
11/1/2011Updated: 2/14/2015
Reference Guide Correction
Description of change:
In the fourth paragraph under Inpatient Areas, add "inpatient units" so that the clause reads, "calculate the cumulative area of all inpatient units, staff and public spaces for all inpatient until floors..."
Campus Applicable
No
Internationally Applicable:
No
11/1/2011Updated: 2/14/2015
Reference Guide Correction
Description of change:
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)."
Campus Applicable
No
Internationally Applicable:
No
11/1/2011Updated: 2/14/2015
Reference Guide Correction
Description of change:
Revise the section to read, "Projects that provide views 10% further into the space for Inpatient Units or exceed the area requirements in Table 1 by 10% or more for Noninpatient Areas are eligible for exemplary performance under the Innovation in Design section."
Campus Applicable
No
Internationally Applicable:
No
11/1/2011Updated: 2/14/2015
Reference Guide Correction
Description of change:
Under INPATIENT UNITS, revise the first sentence so that it reads, "A minimum of 90% of the inpatient units, staff areas, and public areas shall be..."
Campus Applicable
No
Internationally Applicable:
No
11/1/2011Updated: 2/14/2015
Reference Guide Correction
Description of change:
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."
Campus Applicable
No
Internationally Applicable:
No
11/1/2011Updated: 2/14/2015
Rating System Correction
Description of change:
Under INPATIENT UNITS, revise the first sentence so that it reads, "A minimum of 90% of the inpatient units, staff areas, and public areas shall be..."
Campus Applicable
No
Internationally Applicable:
No
5/9/2011Updated: 2/14/2015
Reference Guide Correction
Description of change:
After the definition for glare, add "Movable furniture and partitions are those that can be moved to provide access to the view by the user without the need for tools or assistance from special trades and facilities management."
Campus Applicable
No
Internationally Applicable:
No
10/1/2012Updated: 2/14/2015
Global ACP
Description of change:
Add the following columns relating to metric measurements to the table: Floor plate area (bgm2) Threshold A: 1 point Threshold B: 2 points Up to 1,395 683 766 1,800 816 928 2,325 937 1076 2,785 1,049 1,216 3,250 1,154 1,350 3,715 1,254 1,477 4,180 1,350 1,601 4,600 and larger 1,441 1,720
Campus Applicable
No
Internationally Applicable:
Yes
11/1/2011Updated: 2/14/2015
Reference Guide Correction
Description of change:
Delete "nursing unit" from the first bullet.
Campus Applicable
No
Internationally Applicable:
No
11/1/2011Updated: 2/14/2015
Reference Guide Correction
Description of change:
In the second sentence of the paragraph add "inpatient units" so that the clause reads, "determine the usable square footage of inpatient units, occupied staff and public areas that are within 20 feet of the perimeter..."
Campus Applicable
No
Internationally Applicable:
No
11/1/2011Updated: 2/14/2015
Reference Guide Correction
Description of change:
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."
Campus Applicable
No
Internationally Applicable:
No
11/1/2011Updated: 2/14/2015
Reference Guide Correction
Description of change:
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."
Campus Applicable
No
Internationally Applicable:
No
10/1/2013Updated: 2/14/2015
Reference Guide Correction
Description of change:
Replace Figure 1. Floor Plan Showing Compliant Area. See 10/1/13 Healthcare Reference Guide Addenda Table.
Campus Applicable
No
Internationally Applicable:
Yes
5/9/2011Updated: 2/14/2015
Reference Guide Correction
Description of change:
Change figure title to "Figure 4. Unobstructed View through Window over Low Partition."
Campus Applicable
No
Internationally Applicable:
No
10/1/2012
LEED Interpretation
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
10/1/2012
LEED Interpretation
Inquiry:

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?

Ruling:

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.

Campus Applicable
No
Internationally Applicable:
No
See all forum discussions about this credit »

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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:
1 point

Threshold B:
2 points

Floor plate area (bgm2)

Threshold A:
1 point

Threshold B:
2 points

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

For both in-patient and non-inpatient areas, portions of side lit areas beyond the 15’ view area boundary that meet the requirements of IEQ Credit 8.1: Daylight and Views—Daylight may be included in the qualifying areas of this credit. For calculation methodology for floor plates that vary in size and configuration, see the LEED Reference Guide for Green Building Design & Construction, 2009 Edition Healthcare Supplement.
See all LEEDuser forum discussions about this credit » Unsubscribe from discussions about Healthcare-v2009 IEQc8.2