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Retrofit Measures for Finished Roof
Here you will find the data for Finished Roof measures available in the National Residential Efficiency Measures Database. Each measure consists of a before-component, an after-component, and the estimated cost to implement the measure. The measures are listed alphabetically based upon the name of the before-component. Where multiple costs are indicated they must be combined to obtain total measure cost (e.g., fixed ($) and normalized ($/sf) costs).
Cost Drivers
There are many factors that influence the ultimate cost of Finished Roof measures. The application of the average measure costs displayed below to any particular home is discouraged. Examples of the kinds of issues that can influence the cost of Finished Roof measures include:- Prevailing local wages
- Drive time
- Local code requirements
- Roof slope
- Access
- Presence/condition/type of existing insulation
- Existing construction and materials
- Moisture issues present
- Condition of existing electrical system
- Presence of hazardous materials
Insulate with Open Cell Spray Foam:
Before-Component | After-Component | Cost | ||||||
---|---|---|---|---|---|---|---|---|
Uninsulated, 2x10Properties:
Lifetime:
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R-33 Open Cell Spray Foam, 2x10Properties:
Performance Standards:
Lifetime:
|
Measure Cost
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Insulate with Loose Fill:
Before-Component | After-Component | Cost | ||||||
---|---|---|---|---|---|---|---|---|
Uninsulated, 2x10Properties:
Lifetime:
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R-38 Fiberglass, 2x10Properties:
Performance Standards:
Lifetime:
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Measure Cost
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Insulate with Closed Cell Spray Foam:
Before-Component | After-Component | Cost | ||||||
---|---|---|---|---|---|---|---|---|
Uninsulated, 2x10Properties:
Lifetime:
|
R-60 Closed Cell Spray Foam, 2x10Properties:
Performance Standards:
Lifetime:
|
Measure Cost
|
Insulate with Loose Fill:
Before-Component | After-Component | Cost | ||||||
---|---|---|---|---|---|---|---|---|
Uninsulated, 2x12Properties:
Lifetime:
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R-49 Fiberglass, 2x12Properties:
Performance Standards:
Lifetime:
|
Measure Cost
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Insulate with Loose Fill:
Before-Component | After-Component | Cost | ||||||
---|---|---|---|---|---|---|---|---|
Uninsulated, 2x4Properties:
Lifetime:
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R-13 Fiberglass, 2x4Properties:
Lifetime:
|
Measure Cost
|
Insulate with Loose Fill:
Before-Component | After-Component | Cost | ||||||
---|---|---|---|---|---|---|---|---|
Uninsulated, 2x6Properties:
Lifetime:
|
R-19 Fiberglass, 2x6Properties:
Lifetime:
|
Measure Cost
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Insulate with Open Cell Spray Foam:
Before-Component | After-Component | Cost | ||||||
---|---|---|---|---|---|---|---|---|
Uninsulated, 2x6Properties:
Lifetime:
|
R-20 Open Cell Spray Foam, 2x6Properties:
Lifetime:
|
Measure Cost
|
Insulate with Closed Cell Spray Foam:
Before-Component | After-Component | Cost | ||||||
---|---|---|---|---|---|---|---|---|
Uninsulated, 2x6Properties:
Lifetime:
|
R-36 Closed Cell Spray Foam, 2x6Properties:
Performance Standards:
Lifetime:
|
Measure Cost
|
Insulate with Open Cell Spray Foam:
Before-Component | After-Component | Cost | ||||||
---|---|---|---|---|---|---|---|---|
Uninsulated, 2x8Properties:
Lifetime:
|
R-26 Open Cell Spray Foam, 2x8Properties:
Lifetime:
|
Measure Cost
|
Insulate with Loose Fill:
Before-Component | After-Component | Cost | ||||||
---|---|---|---|---|---|---|---|---|
Uninsulated, 2x8Properties:
Lifetime:
|
R-30 Fiberglass, 2x8Properties:
Performance Standards:
Lifetime:
|
Measure Cost
|
Insulate with Closed Cell Spray Foam:
Before-Component | After-Component | Cost | ||||||
---|---|---|---|---|---|---|---|---|
Uninsulated, 2x8Properties:
Lifetime:
|
R-47 Closed Cell Spray Foam, 2x8Properties:
Performance Standards:
Lifetime:
|
Measure Cost
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