How to Insulate Windows With One Pane of Glass

Windows serve as a point at which heat can escape a house. Modern double- and triple-pane windows are specifically designed to increase energy efficiency, but they are expensive. Single-pane windows can be insulated during winter months and for a fraction of the cost by using heat-shrink window film. The film is virtually invisible, can be easily removed and is readily available at home improvement stores.

Things You'll Need

• Clear double-sided tape
• Heat-shrink window film
• Heat gun or hair dryer
• Utility blade

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Instructions

1. • 1

     Apply a strip of clear double-sided tape along each edge of the window frame.

   • 2

     Unroll a piece of heat-shrink window film that is slightly larger than the window frame.

   • 3

     Spread the film across the window opening, and press the edges of the film into the tape pieces.

   • 4

     Warm the entire surface area of the film with a heat gun or with a hair dryer until all wrinkles have disappeared.

   • 5

     Trim away the portions of the film that hang over the window frame with a utility blade.