How did I end up looking into window films? You know the story: we moved into a 20 years old big house, with 2 window bay areas: one in the living room and one in the kitchen, and big patio doors.
Excellent features to have…but I had so much glare in the sunny days, and, yes!!!…in winter, I knew I should get more heat inside with the way our new high-efficiency furnace was set up.
So I started to look into the window film market for something:
- to control the temperature inside
- to be decorative while blocking the damaging sun rays.
What is Energy Efficient Window Film and How Does it Work?
- Energy efficient window film is a very thin layer of dyed or even metallized polyester that is installed on the inside of the windows. It is designed to retain interior heat in the winter and block solar heat in the summer. Energy film is an inexpensive and easy way to make the home or office more energy efficient while providing UV protection. It is manufactured with both adhesive backing and no adhesive (making it removable and re-usable).
- Doing my research I found out that there isn’t a single treatment that will solve the esthetics and heating problems. The most energy efficient solutions might lessen the light that is coming into your house.Tip: Before installing the energy saving window film, ensure that the window themselves don’t allow any major heat loss. So check them for properly weather-stripping, repairing or replacing the leaky ones.Energy film can be applied not only to windows, but to patio and French doors, or even skylights ( make sure skylights are made of glass, not Plexi-glass, acrylic, and lexan).
- Manufacturers say that having installed e low window film( low-emissivity heat-barrier coating deposited on the window film ), annual energy costs can be reduced up to 20%, UV rejection is up to 95% and light transmission is 77%.
Tip: The e low coating on the energy efficient window film, will block almost all UV radiations, and it will not cause the glass to get as hot as regular window films because they block more of the sun’s heat instead of absorbing it.
- Other advantages: In addition to its isolative properties, energy efficient window film reduces glare, provides UV protection, strengthens the glass pane and prevents fabrics from fading. It will increase your overall home comfort while maintaining your view from both inside and outside.
- Prevention of seal failure for dual pane windows when window film is installed is determined by the quality of the insulated glass windows and of course workmanship. The best guard against seal failure is to purchase well-made units from reputable window manufacturers that have solid experience and histories with insulated units. Read instructions before applying them because you don’t want the glass to get too hot and damage the seal or even break the glass.
- Cleaning: Use normal household cleaning solutions( Windex), and a soft, lint-free cloth. Do not use abrasive products which would damage the film. Dry it with a soft cloth or soft squeegee.
See some of our popular pages:
- Window Treatments for Patio and Sliding Doors
- Stenciled Frosted Glass on Windows
Installation Tips for Window Film with Adhesive:
- The window should be cleaned before application. Remove any dirt or stains, and avoid start application if the window is in direct sunlight, or outside temperature is below 0C
- Measure the window, cut the film approx. 1/2 to 1 inch larger than the glass dimensions. Try and use one of the factory edges.
- Apply wet solution (4 cups water and less than 1/2 tsp. baby shampoo) to the inside of the window. This will help when mounting and positioning the film.
- Remove the liner, wet the adhesive side of the film and apply it to the glass; smooth any bubbles that might appear towards the edges with a hard card squeegee.
- Trim the film on the edges using a sharp knife (a dull blade can tear the film).
- If any debris got caught under the film, try to peel off the film, remove the debris, re-wet the adhesive side and re-apply the film.
- Always trim the film ( up to 1/16″ less than the window itself) before squeegeeing water out from underneath the film. Absorb excess water with coffee filter or paper towel. Trimming the gap prevents air and water bubbles, which are impossible to remove once the film has fully cured (dried).
- The 1/16″ gap also permits adequate room for the glass to expand and contract.
Some of the reputable companies offering energy saving window films:
- Solar Gard, www.solargard.com
- Johnson Window Films, www.johnsonwindowfilms.com