The Benefits of Residential Weatherization
Weatherization refers to actions a homeowner can take to improve the thermal envelope of their house. Weatherization measures include air sealing, insulation, and replacement of older windows.
An insufficiently weatherized home may have "hidden" heat loss and energy waste in parts of the home residents rarely visit. These infrared pictures demonstrate, in shades of red and yellow, where heat loss occurs in a typical home. The image on top shows that heat is escaping through building seams and inefficient windows, while the image on bottom shows heat escaping through walls and the roof due to poor insulation.
Insulation and efficient windows improve the overall thermal resistance of the home, reducing waste and keeping occupants comfortable. Air sealing helps keep conditioned air inside the home and ensures that fresh air enters through intentional sources and not through unintentional sources like cracks in the foundation, leaky ducting, or gaps in building cavities.
Benefits of weatherization measures include:
- Lower heating and cooling costs through reduced energy waste
- Improved comfort by eliminating of drafts and cold spots
- Improved air quality, reduction of unwanted allergen or pollutants
- Durable, lasting improvements to the home
Visit the Department of Energy website to learn more about air sealing, insulation and windows and to access publications to share with contractors and customers.