How to Fit Double Glazing Film

Cling film is the easiest form of double glazing to apply.

Double glazing window film is a thin layer of plastic sheeting applied to windows to hold in heat during cold winter months. This film is needed only on older single pane windows since they allow the most heat loss. Several forms of double glazing film can be applied to windows, but the easiest to apply is cling film. Cling film sticks to the slick surface of the window without tape or adhesive.

Things You'll Need

• Spray bottle
• Water
• Dish soap
• Lint-free cloth
• Cling film
• Scissors
• Razor blade
• Hair dryer

Instructions

1. Fill a spray bottle 3/4 full with water, and add 1 to 2 tsp. of dish soap. Close the spray bottle, and shake it gently to dissolve the soap.

2. Spray the surface of the window thoroughly with the soap solution, and wipe it with a clean, lint-free cloth to remove all traces of dust and oil from the surface.

3. Place the window film over the window, and position it so that there is a 1-inch overlap on all sides of the window frame.

4. Press the window film against the top of the window until it sticks. Slowly unroll the window film, and press it smooth with your hand until reaching the bottom of the window. Cut the window film from the roll using scissors. Having another person smooth while you unroll makes the application process much easier.

5. Smooth out any air bubbles in the film by pressing them out with your hands. If necessary, pull up sections of the film, and reapply them to remove air bubbles.

6. Place the sharp edge of a razor blade at one of the top edges of the window frame. Use the razor to gently cut all the way around the frame to remove excess window film.

Tips & Warnings

• Applying hot air from a hair dryer helps remove stubborn air bubbles by making the plastic more pliable.

• Cling film lasts for one year before it must be reapplied.

References

• Eastwood Park Theatre: Energy Efficiency Guides