ATTIC INSULATION

How Much Attic Insulation Do I Need?

If you think you’re among the 90% of US homes that are under-insulated, 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.

What is R-Value?

Insulation is identified and labeled by R-value. “R” stands for resistance to heat flow. The higher the insulation R-value, the greater the insulating power. You’ll see insulation R-values indicated on product packaging and often on the product itself.

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.

Reference
1. NAIMA estimate based on Boston University study. “Under-insulated” here means when compared to the minimum prescriptive wall and ceiling insulation R-values found in the 2006 International Energy Conservation Code (IECC)