R-Values for Enhanced Home Energy Savings and Comfort - Existing Homes

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This map shows NAIMA’s recommended thermal insulation levels based on both the U.S. Department of Energy’s recommendations and the most recent minimum International Energy Conservation Code levels.

Ceilings: R-49 Walls: R-21 Floors: R-30 Basement Walls: R-13

Ceilings: R-49 Walls: R-15 Floors: R-30 Basement Walls: R-13

Ceilings: R-38 Walls: R-15 Floors: R-30 Basement Walls: R-13

Note: These R-values provide the optimal level for energy savings and comfort. They may not be attainable or practical in all existing homes, but homeowners should come as close as possible for the optimal benefit. Savings vary, find out why in the seller's fact sheet on R-values. Higher the R-Values mean the greater insulating power.

For More Information

	For additional information, read the following NAIMA items: Federal Tax Credits Available for Adding Insulation to Existing Homes R-Values for Optimum Home Energy Savings and Comfort

Follow the links below for additional information:

• Existing Homes
• New Homes
• Commercial Buildings (Coming soon)
• Manufactured Housing (Coming soon)
• Determining your current levels of insulation
• Choosing an insulation type
• Installing insulation yourself
• Tips on hiring a professional insulation contractor
• Places in a typical house where insulation should be installed
• Where you can add insulation to your home
• Frequently Asked Questions about the Federal tax incentives