Running a Blower Door Test

Publication Type:
Fact Sheet

Published / Updated:

An air leak can result in a 25 percent heat loss in a newly constructed home and a 40 percent loss in older buildings. In addition to increased heating and cooling costs, unconditioned air moving through the house can cause moisture problems, increasing the chance of mold and structural decay.

To get an accurate measurement of your home's tightness, conduct a blower-door test. Download this document to learn about:

  • Finding a certified Home Energy Rater
  • Conducting the blower door test
  • Tips for achieving accurate results

Get Your Free Copy

Already registered? Login Now


By clicking the button above, you agree to our Terms of Service and Privacy Policy and to allow your personal information to be shared with the sponsor of this content. Your information will NOT be shared with anyone else.