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Retrofit Measures for Slab

Here you will find the data for Slab 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 Slab 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 Slab measures include:
  • Prevailing local wages
  • Drive time
  • Local code requirements
  • Access
  • Presence/condition/type of existing insulation
  • Existing construction and materials
  • Moisture issues present
  • Presence of hazardous materials
  • Extent of preparation
  • Accommodation for termite inspections

Viewing 6 Slab Measure(s) of 6

Insulate Slab with Exterior Rigid Foam Board Insulation:

Before-Component After-Component Cost

Uninsulated

Properties:

  • Exterior Insulation Depth: ft
  • Exterior Insulation Nominal R-value: h-ft^2-R/Btu

Performance Standards:

  • Meets IECC 2012 (1A, 3C, 1B, 1C, 2B, 3B, 2A, 2C, 3A)
  • Meets IECC 2009 (1A, 3C, 1B, 1C, 2B, 3B, 2A, 2C, 3A)

Lifetime:

  • 999 Years
 

2ft R10 Exterior XPS

Properties:

  • Exterior Insulation Depth: 2.0 ft
  • Exterior Insulation Nominal R-value: 10.0 h-ft^2-R/Btu

Performance Standards:

  • Meets IECC 2012 (4A, 5B, 5A, 5C)
  • Meets IECC 2009 (4A, 5B, 5A, 5C)
  • Exceeds IECC 2012 (1C, 1B, 1A, 3C, 2C, 3A, 2A, 3B, 2B)
  • Exceeds IECC 2009 (1C, 1B, 1A, 3C, 2C, 3A, 2A, 3B, 2B)

Lifetime:

  • 999 Years
 

Measure Cost

UnitsRangeAverage
$/ft^2 Slab Exterior1.2 - 2.62

Insulate Slab with Exterior Rigid Foam Board Insulation:

Before-Component After-Component Cost

Uninsulated

Properties:

  • Exterior Insulation Depth: ft
  • Exterior Insulation Nominal R-value: h-ft^2-R/Btu

Performance Standards:

  • Meets IECC 2012 (1A, 3C, 1B, 1C, 2B, 3B, 2A, 2C, 3A)
  • Meets IECC 2009 (1A, 3C, 1B, 1C, 2B, 3B, 2A, 2C, 3A)

Lifetime:

  • 999 Years
 

2ft R5 Exterior XPS

Properties:

  • Exterior Insulation Depth: 2.0 ft
  • Exterior Insulation Nominal R-value: 5.0 h-ft^2-R/Btu

Performance Standards:

  • Exceeds IECC 2009 (2C, 3A, 3B, 2A, 1C, 2B, 1A, 3C, 1B)
  • Exceeds IECC 2012 (2C, 3A, 3B, 2A, 1C, 2B, 1A, 3C, 1B)

Lifetime:

  • 999 Years
 

Measure Cost

UnitsRangeAverage
$/ft^2 Slab Exterior0.82 - 1.81.5

Insulate Slab with Exterior Rigid Foam Board Insulation:

Before-Component After-Component Cost

Uninsulated

Properties:

  • Exterior Insulation Depth: ft
  • Exterior Insulation Nominal R-value: h-ft^2-R/Btu

Performance Standards:

  • Meets IECC 2012 (1A, 3C, 1B, 1C, 2B, 3B, 2A, 2C, 3A)
  • Meets IECC 2009 (1A, 3C, 1B, 1C, 2B, 3B, 2A, 2C, 3A)

Lifetime:

  • 999 Years
 

4ft R10 Exterior XPS

Properties:

  • Exterior Insulation Depth: 4.0 ft
  • Exterior Insulation Nominal R-value: 10.0 h-ft^2-R/Btu

Performance Standards:

  • Exceeds IECC 2012 (2A, 3B, 1C, 1B, 1A, 3C, 5C, 2C, 3A, 5A, 2B, 5B, 4A)
  • Exceeds IECC 2009 (2A, 3B, 1C, 1B, 1A, 3C, 5C, 2C, 3A, 5A, 2B, 5B, 4A)
  • Meets IECC 2012 (6A, 6C, 6B, 7, 8)
  • Meets IECC 2009 (6A, 6C, 6B, 7, 8)

Lifetime:

  • 999 Years
 

Measure Cost

UnitsRangeAverage
$/ft^2 Slab Exterior1.2 - 2.62

Insulate Slab with Exterior Rigid Foam Board Insulation:

Before-Component After-Component Cost

Uninsulated

Properties:

  • Exterior Insulation Depth: ft
  • Exterior Insulation Nominal R-value: h-ft^2-R/Btu

Performance Standards:

  • Meets IECC 2012 (1A, 3C, 1B, 1C, 2B, 3B, 2A, 2C, 3A)
  • Meets IECC 2009 (1A, 3C, 1B, 1C, 2B, 3B, 2A, 2C, 3A)

Lifetime:

  • 999 Years
 

4ft R15 Exterior XPS

Properties:

  • Exterior Insulation Depth: 4.0 ft
  • Exterior Insulation Nominal R-value: 15.0 h-ft^2-R/Btu

Performance Standards:

  • Exceeds IECC 2012 (5C, 1B, 1C, 2B, 4A, 5B, 5A, 2C, 3A, 6C, 8, 6B, 3B, 2A, 6A, 1A, 3C, 7)
  • Exceeds IECC 2009 (5C, 1B, 1C, 2B, 4A, 5B, 5A, 2C, 3A, 6C, 8, 6B, 3B, 2A, 6A, 1A, 3C, 7)

Lifetime:

  • 999 Years
 

Measure Cost

UnitsRangeAverage
$/ft^2 Slab Exterior1.6 - 3.42.6

Insulate Slab with Exterior Rigid Foam Board Insulation:

Before-Component After-Component Cost

Uninsulated

Properties:

  • Exterior Insulation Depth: ft
  • Exterior Insulation Nominal R-value: h-ft^2-R/Btu

Performance Standards:

  • Meets IECC 2012 (1A, 3C, 1B, 1C, 2B, 3B, 2A, 2C, 3A)
  • Meets IECC 2009 (1A, 3C, 1B, 1C, 2B, 3B, 2A, 2C, 3A)

Lifetime:

  • 999 Years
 

4ft R20 Exterior XPS

Properties:

  • Exterior Insulation Depth: 4.0 ft
  • Exterior Insulation Nominal R-value: 20.0 h-ft^2-R/Btu

Performance Standards:

  • Exceeds IECC 2009 (5A, 2C, 3A, 6C, 1B, 7, 1A, 3C, 5C, 2B, 4A, 5B, 1C, 2A, 3B, 6A, 6B, 8)
  • Exceeds IECC 2012 (5A, 2C, 3A, 6C, 1B, 7, 1A, 3C, 5C, 2B, 4A, 5B, 1C, 2A, 3B, 6A, 6B, 8)

Lifetime:

  • 999 Years
 

Measure Cost

UnitsRangeAverage
$/ft^2 Slab Exterior1.9 - 4.23.2

Insulate Slab with Exterior Rigid Foam Board Insulation:

Before-Component After-Component Cost

Uninsulated

Properties:

  • Exterior Insulation Depth: ft
  • Exterior Insulation Nominal R-value: h-ft^2-R/Btu

Performance Standards:

  • Meets IECC 2012 (1A, 3C, 1B, 1C, 2B, 3B, 2A, 2C, 3A)
  • Meets IECC 2009 (1A, 3C, 1B, 1C, 2B, 3B, 2A, 2C, 3A)

Lifetime:

  • 999 Years
 

4ft R5 Exterior XPS

Properties:

  • Exterior Insulation Depth: 4.0 ft
  • Exterior Insulation Nominal R-value: 5.0 h-ft^2-R/Btu

Performance Standards:

  • Exceeds IECC 2012 (1B, 1C, 2B, 3B, 2A, 2C, 3A, 1A, 3C)
  • Exceeds IECC 2009 (1B, 1C, 2B, 3B, 2A, 2C, 3A, 1A, 3C)

Lifetime:

  • 999 Years
 

Measure Cost

UnitsRangeAverage
$/ft^2 Slab Exterior0.82 - 1.81.5

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