how much attic insulation do I need?
If you think you’re among the 90% of US homes that are under-insulated,1 performing a simple insulation inspection will help you determine your insulation needs. Having the correct amount of attic insulation can help you maintain a comfortable temperature throughout your home and help save money on your energy bills—plus, prevent major issues like ice dams in the winter.
HOW MUCH INSULATION SHOULD YOU INSTALL?
The amount of insulation recommended for your home will vary depending on a number of factors:
Where you live—Different climates require different insulation R-values. You will need a higher R-value of insulation if you live in the Northeast than if you live in Southern California.
Your home’s age—If your home is more than 10 years old, you will likely need more insulation.
Recommended levels of insulation?
This map shows thermal recommended levels of insulation for various climate zones, based on recommendations from the U.S. Department of Energy (DOE) and the International Energy Conservation Code (IECC). The IECC is the model building code for the United States.