Energy Efficiency

What is Weatherization?

Weatherization is the practice of protecting a building and its interior from the elements, especially sunlight, precipitation, and wind, and of modifying a building to reduce energy consumption and optimize energy efficiency.

Common Air Leaks

This graphic shows why having a properly insulated home is essential for energy efficiency. Air leaks commonly occur in areas where insulation is missing or poorly sealed, allowing outside air to enter and conditioned air to escape.

When these leaks exist, heating and cooling systems must work harder, increasing energy use and utility costs. The arrows in this diagram highlight the most common locations where air leakage occurs, including the attic, ductwork, and basement areas.

Benefits of Weatherization

Reduce energy consumption

Improve indoor air quality

Improve humidity control

Increase home comfort and safety

Reduce risk of ice dams

Diagram illustrating common air leak locations in a home and areas where conditioned air can escape or enter the building envelope. Source: U.S. Environmental Protection Agency (EPA), Energy Star, “Where Homes Leak.”

Interested in weatherization but don't have the financial means to start a project?

Check out NeST's HeatSmart Southern Tier program to learn how we can help!