• Overview
• How do radiation barriers save energy?
• Radiant barriers are one component in the attic system
• After you've decided to install a radiant barrier product
• More about heat transfer in attics
• Glossary
• Where to go for more information
• About This Fact Sheet
  
• Download PDF Factsheet
• Site Map

Radiant Barrier Calculator

1a. Select your ASHRAE Zone:

- OR -

1b. Select city most like your climate:
Miami
Austin
Atlanta
Baltimore
Chicago
Minneapolis
Fargo
Fairbanks

2. Attic floor size (ft²):

3. Attic insulation:
Less than R-30 (R-19)
More than R-30 (code)

4. Ducts in attic:
Yes
Yes with insulated and well-sealed ducts
No

Calculate

Last updated: January 4, 2011