Running a Blower Door Test
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