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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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USGBC logo

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

Intent

To conserve energy by selecting and installing insulation to minimize heat transfer and thermal bridging.

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 forum discussions about this credit »

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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.

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USGBC logo

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

Intent

To conserve energy by selecting and installing insulation to minimize heat transfer and thermal bridging.

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