Retrofit Measures for Wall Sheathing
Here you will find the data for Wall Sheathing measures available in the National Residential Efficiency Measures Database. Each measure consists of a beforecomponent, an aftercomponent, and the estimated cost to implement the measure.
The measures are listed alphabetically based upon the name of the beforecomponent. 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 Wall Sheathing 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 Wall Sheathing measures include:
Insulate Wall with Rigid Foam Board:
BeforeComponent 
AfterComponent 
Cost 
None
Properties:
 Continuous Insulation Nominal Rvalue: hft^2R/Btu
 Continuous Insulation Thickness: in
 Continuous Insulation Type:

R10 XPS
Properties:
 Continuous Insulation Nominal Rvalue: 10.0 hft^2R/Btu
 Continuous Insulation Thickness: 2.0 in
 Continuous Insulation Type: xps
Lifetime:

Measure Cost
Units  Range  Average 
$/ft^2 Exterior Wall  1.3  2.2  1.7 

Insulate Wall with Rigid Foam Board:
BeforeComponent 
AfterComponent 
Cost 
None
Properties:
 Continuous Insulation Nominal Rvalue: hft^2R/Btu
 Continuous Insulation Thickness: in
 Continuous Insulation Type:

R12 Polyiso
Properties:
 Continuous Insulation Nominal Rvalue: 12.0 hft^2R/Btu
 Continuous Insulation Thickness: 2.0 in
 Continuous Insulation Type: polyiso
Lifetime:

Measure Cost
Units  Range  Average 
$/ft^2 Exterior Wall  1.1  1.9  1.5 

Insulate Wall with Rigid Foam Board:
BeforeComponent 
AfterComponent 
Cost 
None
Properties:
 Continuous Insulation Nominal Rvalue: hft^2R/Btu
 Continuous Insulation Thickness: in
 Continuous Insulation Type:

R15 XPS
Properties:
 Continuous Insulation Nominal Rvalue: 15.0 hft^2R/Btu
 Continuous Insulation Thickness: 3.0 in
 Continuous Insulation Type: xps
Lifetime:

Measure Cost
Units  Range  Average 
$/ft^2 Exterior Wall  1.6  2.8  2.2 

Insulate Wall with Rigid Foam Board:
BeforeComponent 
AfterComponent 
Cost 
None
Properties:
 Continuous Insulation Nominal Rvalue: hft^2R/Btu
 Continuous Insulation Thickness: in
 Continuous Insulation Type:

R5 XPS
Properties:
 Continuous Insulation Nominal Rvalue: 5.0 hft^2R/Btu
 Continuous Insulation Thickness: 1.0 in
 Continuous Insulation Type: xps
Lifetime:

Measure Cost
Units  Range  Average 
$/ft^2 Exterior Wall  0.93  1.6  1.3 

Insulate Wall with Rigid Foam Board:
BeforeComponent 
AfterComponent 
Cost 
None
Properties:
 Continuous Insulation Nominal Rvalue: hft^2R/Btu
 Continuous Insulation Thickness: in
 Continuous Insulation Type:

R6 Polyiso
Properties:
 Continuous Insulation Nominal Rvalue: 6.0 hft^2R/Btu
 Continuous Insulation Thickness: 1.0 in
 Continuous Insulation Type: polyiso
Lifetime:

Measure Cost
Units  Range  Average 
$/ft^2 Exterior Wall  0.86  1.4  1.1 
