How does air sealing work?



  1. 0 Votes

    Air sealing locates and closes air leaks in a building that can drastically reduce the efficiency of its heating/cooling system. Leaks are usually sealed with caulk, spray foam, or weather stripping. You can do-it-yourself using a guide provided by, or hire a professional technician who can locate the harder-to-find leaks in attics, basements, and crawlspaces using special diagnostic tools.

  2. 0 Votes

    Air sealing works by finding cracks or gaps that allow air to enter a home or building and plugging them up. Usually a professional performs a thermal scan, which can locate areas of hot and cold, which shows areas where warm or cold air are entering. Common materials used for air sealing are; caulks, adhesives, foams, gaskets, and sheets. Another way for someone to find a crack or gap is to perform the “draft test”. Try and see if you can feel a draft around doors or windows, if you do you can purchase air sealing materials from a local hardware store. But remember that fresh air circulation is very important, a home or building that is completely sealed doesn’t allow fresh air to enter.

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