Maya Ellison
Whether or not to cover your windows with plastic depends on a number of factors. Plastic window film is an inexpensive, effective, and easy DIY solution to reduce drafts, make your house feel warmer in winter, and reduce moisture buildup on windows. It can also help eliminate air leaks, which can lead to uncomfortable drafts and energy losses. However, plastic window film is only a temporary solution, as it tends to wrinkle and leave gaps after a few weeks, and it may not be aesthetically pleasing. It is recommended to use plastic film as a supplement to replacing old windows or while in the process of doing so.
| Characteristics | Values |
|---|---|
| Use case | To complement already energy-efficient windows, or as a temporary solution when replacing old windows |
| Benefits | Reduces drafts, helps the house feel warmer during winter, reduces moisture buildup on the window, eliminates air leaks, inexpensive |
| Drawbacks | Temporary solution that doesn't last long, can be challenging to install correctly, may impact the ability to open and close windows, may not look aesthetically pleasing |
| Installation considerations | Properly size the film, clean the window frame, apply adhesive, use a hair dryer to tighten the film |
| Leak detection | Light an incense stick and observe the smoke direction, or hire a professional for a home energy audit |
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What You'll Learn
Benefits of using plastic on windows
While window plastic is not a long-term solution to weatherproofing your windows, it does have some benefits. Window film covers are inexpensive, easy to install, and can be purchased at any department or hardware store. They can be used as a temporary solution while replacing old windows, or to complement already energy-efficient windows.
One of the main benefits of window plastic is its ability to prevent drafts and reduce moisture buildup on the window due to condensation. By sealing air gaps and extending over the woodwork, the extra layer of plastic adds another layer of insulating air, reducing heat loss through the window. This can be particularly useful in cold climates, as it helps to keep the house warm during the winter months.
Window plastic can also protect your furniture and other belongings from UV rays, which can fade fabrics and other materials. Additionally, if the indoor air quality is better than the outdoor air quality, window plastic can help prevent outdoor air contaminants from entering your home.
However, it is important to note that window plastic is not a substitute for functioning windows. If your windows are in bad shape, it is recommended to replace them with new, energy-efficient ones. Window plastic should only be used as a temporary solution or to complement existing windows.
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Drawbacks of using plastic on windows
While using plastic on windows has its benefits, there are several drawbacks to consider. One of the main disadvantages is that it does not address the underlying issues with the windows. If your windows are inefficient or in poor condition, covering them with plastic is only a temporary solution that ignores the root of the problem. This could lead to further complications down the line, such as unstoppable drafts entering your home.
Another drawback is the potential difficulty of installation. Plastic window films require careful preparation and installation, including cleaning the windows thoroughly and ensuring the tape adheres properly. If not installed correctly, the plastic may fall off, rendering it ineffective. Additionally, the tape holding the plastic in place may loosen over time, requiring regular replacement to maintain the seal.
The use of plastic on windows can also impact the aesthetics of your home. Plastic coverings can be visible from both sides, obscuring the view and potentially looking unsightly or tacky. This may be undesirable for those who want to maintain the appearance of their home.
Furthermore, adding a film to your windows may void the warranty from the window manufacturer. It is important to consider the potential implications on your window warranty before proceeding with any modifications.
While plastic window coverings can provide some benefits in certain situations, it is important to weigh these drawbacks before making a decision. In some cases, replacing old or inefficient windows with energy-efficient alternatives may be a more effective long-term solution.
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Installation process
Window plastic is a temporary solution to improve the insulation of your home. It is inexpensive and easy to install, but it may not be the most aesthetically pleasing option. It is a good option if you are in the process of replacing old windows or if you want to complement already energy-efficient windows.
- Clean the window frame to remove any dust or dirt.
- Apply double-sided adhesive tape around the outside edge of the window.
- Measure the window, adding 2-3 inches to the dimensions to allow for film shrinking.
- Cut the plastic film to size.
- Starting at the top of the window, press the film firmly onto the tape.
- Repeat this process for the sides and bottom of the window until all sides are sealed.
- Use a hairdryer to shrink the film and remove any wrinkles. Be careful, as it is hard to tell how well the film lines up before applying heat.
- Cut off any excess film with scissors.
- Check for a tight fit between the window and the film.
If you are planning to cover windows with mini-blinds, you will need to take the following steps before applying the plastic:
- Remove the rotating wand from the blinds by lifting the retaining ring and lifting the wand off the hook.
- After applying the window film, apply four strips of cellophane tape to the film surrounding the wand hook, overlapping at the corners.
- Cut out the center of the square with a new utility blade.
It is important to note that window plastic is not a long-term solution and may only be suitable for a few weeks. It can also be difficult to install, and one wrong move can cause an ugly mess. If you are unsure about installing window plastic yourself, consider hiring a professional to ensure it is done correctly and safely.
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Locating air leaks
One way to locate air leaks is to inspect windows and doors regularly. Check for rattling windows, visible gaps, and brown stains on walls under skylights, which are signs of water invading and air escaping. Inspect weather stripping for peels, gaps, and tears, and make sure hinges are tight and doors fit securely in their thresholds.
Another way to locate air leaks is to use the incense test. Light an incense stick and hold it next to the seams or sash of your window. If the smoke wavers or is sucked out of or blown into the room, there's a draft, and you likely have a leak.
You can also use a damp hand to locate leaks; drafts will feel cool to your hand. Alternatively, you can use a flashlight at night to detect leaks by shining it over all potential gaps while someone observes the house from the outside. Large cracks will show up as rays of light, but this method is not ideal for detecting small cracks.
If you are still having difficulty locating leaks, you can conduct a basic building pressurization test to increase infiltration through cracks and leaks, making them easier to detect. Turn off all combustion appliances such as gas-burning furnaces and water heaters on a cool, windy day. Shut all windows, exterior doors, and fireplace flues. Turn on all exhaust fans that blow air outside, such as your clothes dryer, bathroom fans, or stove vents, or use a large window fan to suck the air out of the rooms.
There are also tools available to help locate air leaks, such as a thermal leak detector, which can be pointed at areas like doors and windows to show where thermal leaks are occurring.
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Alternatives to plastic coverings
While using plastic to cover windows can be a cheap and simple way to improve energy efficiency, it is not always aesthetically pleasing and can be time-consuming to install. The plastic is also not very durable and may need to be replaced frequently.
- Window film: Window film can be applied directly to the window to block UV rays and trap heat. It is available in tinted and non-tinted options, as well as decorative, carbon, metalized, or ceramic varieties. This option offers more flexibility than plastic coverings, as it can be opened and closed freely.
- Low-E glass coatings: "Low-E" stands for low-emissivity or low-emittance. Low-E windows have a microscopically thin coating that is transparent and reflects heat. This option is advantageous over plastic coverings as the treatment is invisible.
- Cellular shades: These shades are hung on the inside of the window and have a honeycomb texture that creates air pockets between the window and the room, increasing energy efficiency.
- Triple-pane window replacements: Upgrading to triple-pane windows can provide a long-term solution with enhanced energy efficiency and do not require frequent replacement like plastic coverings.
- Window winterizing kits: These kits typically include clear vinyl or plastic sheets that create an air pocket to provide insulation.
- Caulking: Caulking your windows can help seal any gaps or leaks, reducing drafts and improving energy efficiency.
- Other insulating materials: Besides plastic, you can use bubble wrap, shower curtain liners, or blankets to cover your windows and add an extra layer of insulation.
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Frequently asked questions
Covering windows with plastic film is a good way to insulate your home, especially during the winter months. It can help reduce drafts, keep your home warmer, and reduce condensation. However, it is a temporary solution, and it may not look aesthetically pleasing.
If you have old, drafty windows, you can either replace them or seal them with plastic. To check for drafts, you can light an incense stick and hold it next to your window. If the smoke is pushed in a particular direction, you likely have a leak.
First, locate any air leaks. Then, measure your windows and cut the plastic film accordingly, leaving a few extra inches on each side. Clean the window frame, apply adhesive, and then the film. Use a hairdryer to tighten the film and remove any wrinkles.
Covering your windows with plastic can help reduce heating costs and improve energy efficiency, especially in the winter. It can also help reduce condensation and eliminate air leaks, improving energy efficiency.
Window plastic is a temporary solution and may only last a few weeks. It can be challenging to install, and if not done properly, it can look bad and decrease the curb appeal of your home. It may also prevent you from opening your windows during the warmer months, when natural cooling is preferable to air conditioning.
