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LEED v4
Homes
Energy and Atmosphere
Envelope Insulation

LEED CREDIT

Homes-v4 EAc8: Envelope Insulation 1-2 points

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© Copyright U.S. Green Building Council, Inc. All rights reserved.

Requirements

Select insulation whose R-value exceeds the requirements listed in the 2012 International Energy Conservation Code (IECC), Chapter 4, or local code, whichever is more stringent. Do not include thermal mass or infiltration effects in the R-value calculation. Points are awarded according to Table 1.

Table 1. Points for exceeding code requirements for R-value
Percentage improvement Points
10% 1
20% 2
Install the insulation to meet the Grade I specifications set by the RESNET Home Energy Rating Standard.
Credit only available for projects using the EA prescriptive path’
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Addenda

10/2/2017Updated: 10/20/2017
Rating System Correction
Description of change:
Remove 9 instances of references to qualified energy rater in LEED v4 Homes and Midrise rating system requirements, as indicated below.

(Instances 1 and 2) EA PREREQUISITE: MINIMUM ENERGY PERFORMANCE (MIDRISE), Option 2. Commissioning using Prescriptive Path:

Requirement 1. Reduced Heating and Cooling Distribution System Losses for In-unit HVAC: remove the phrase "verified by a qualified energy rater." at the end of the second sentence under 1.
Requirement 4. Multifamily Midrise Thermal Enclosure Inspection Checklist: replace the first sentence under 2 with the following text: "Inspect and verify each item on the checklist."

(Instance 3 & 4 ) EA CREDIT: AIR INFILTRATION (HOMES): Delete sentence in both Case 1 and Case 2 "The rate of air leakage to outside must be tested and verified by a qualified energy rater" from credit language.

Instance 5) EA CREDIT: ENVELOPE INSULATION (HOMES): Delete sentence "Installation must be verified by a qualified energy rater conducting a pre-drywall thermal enclosure inspection" from credit language.

(Instance 6 and 7) EA CREDIT: HEATING AND COOLING DISTRIBUTION SYSTEMS

Option 2. Ductwork in Unconditioned Space: Delete the phrase ", verified by the qualified energy rater." after the sentence that begins with "for each installed system" under requirements for both Large Homes or Multifamily Units and under requirements for Small Homes or Multifamily Units.

(Instances 8 and 9) EQ CREDIT: BALANCING HEATING AND COOLING DISTRIBUTION SYSTEMS

Option 2. Supply Air-Flow Testing: Delete the phrase "by a qualified energy rater" from the sentence that begins "Have the total supply air-flow rates in each room tested ."

Option 3. Pressure Balancing: Delete the sentence "The testing must be verified by a qualified energy rater."



Campus Applicable
No
Internationally Applicable:
Yes
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USGBC logo

© Copyright U.S. Green Building Council, Inc. All rights reserved.

Requirements

Select insulation whose R-value exceeds the requirements listed in the 2012 International Energy Conservation Code (IECC), Chapter 4, or local code, whichever is more stringent. Do not include thermal mass or infiltration effects in the R-value calculation. Points are awarded according to Table 1.

Table 1. Points for exceeding code requirements for R-value
Percentage improvement Points
10% 1
20% 2
Install the insulation to meet the Grade I specifications set by the RESNET Home Energy Rating Standard.
Credit only available for projects using the EA prescriptive path’
See all LEEDuser forum discussions about this credit » Subscribe to new discussions about Homes-v4 EAc8