What is air sealing?

What is air sealing?

Air sealing, also sometimes referred to as weatherization, is all about identifying and closing up any gaps, cracks or holes around your home where air can sneak in or out.
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    • Why is air sealing important in exterior walls?

      Insulation works best when air is not moving through or around it. Exterior walls typically have penetrations for electrical wiring and outlets, as well as gaps in the top, bottom, and sides of the walls that can leak warm air into or out of your ...
    • How is air leakage stopped?

      The nature of the leak and the surface to be sealed determine what type of air sealing material to use, e.g. caulk, expanding foam, rigid foam board, weather stripping, etc.
    • Where are the best places to air seal?

      A few gaps and cracks around your home may seem insignificant, but the truth is, all those small spaces add up. All together, they are equivalent to leaving a window open all year long. Spots near windows and doors may be the easiest to spot, but ...
    • What home energy upgrades are covered?

      You can get financing for new or replacement HVAC systems and associated Duct system repair or replacements. Financing is also available for Air Sealing and Insulation upgrades.
    • What’s included in a Home Energy Evaluation?

      During your Home Energy Evaluation, a TVA-certified Home Energy Advisor will look at 10 different areas: Air sealing Appliances/electronics Attic insulation Duct system HVAC Lighting Refrigerator Wall insulation Water heater Windows and doors After ...