Alexei Volkov
Plastic window insulation kits are often advertised as a way to reduce heating costs and prevent drafts, but do they actually work? The short answer is that it depends. While plastic film can add an extra layer of insulation to your windows, it may not be as effective as other methods such as installing thermal curtains or blinds. Additionally, the effectiveness of plastic window insulation also depends on the quality of your windows and whether there are any gaps or leaks. For newer, high-quality windows, plastic film may not provide much additional benefit. However, for older windows with noticeable gaps, plastic film can be a good temporary solution to prevent leaks and drafts.
| Characteristics | Values |
|---|---|
| Effectiveness | Some sources claim that plastic film can help to reduce drafts and make a house feel warmer in the winter. However, others argue that it is not very effective in reducing cold air from entering the house and that thermal curtains or blinds may provide better insulation. |
| Ease of Installation | Plastic window insulation kits are easy to install and can be purchased at home improvement, hardware, and discount stores. |
| Cost | Plastic window film is inexpensive. |
| Maintenance | The application process can be tedious and must be repeated each winter. |
| Aesthetics | Some people may prefer other insulation solutions that are more aesthetically pleasing, such as thermal curtains. |
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What You'll Learn
- Plastic shrink-wrap window kits: A temporary solution to block out drafts and heat loss
- R-value: The measurement of thermal resistance of a material
- Locating air leaks: Tricks to find leaks, which can be small and unnoticeable
- Window insulation kits: Do they work as advertised to reduce heating costs
- Alternative solutions: Thermal curtains, blinds, and solar window film
Plastic shrink-wrap window kits: A temporary solution to block out drafts and heat loss
Plastic window film covers are an inexpensive, temporary solution to block out drafts and heat loss. They are easy to install, but the process must be repeated each winter. To install, cut the plastic to fit your window and use double-sided tape to adhere it across the entire pane. Then, use a hair dryer to shrink-wrap the plastic film so it fits snugly.
While plastic window film covers can be effective in reducing drafts and heat loss, they are not a permanent solution. They may not be effective for newer homes with higher-quality windows and can be tedious to install. Additionally, they may not provide significant energy savings, as the R-value (thermal resistance) of the plastic is low.
Visible gaps between the window and frame, peeling paint, rattling windows, and increased heating and cooling costs are all signs that your windows may be leaking and could benefit from plastic sealing. However, it is important to note that plastic window film covers are not the only solution to drafty windows. Thermal curtains, for example, can provide a higher level of window insulation and offer additional benefits such as sound dampening and light blocking.
For a more permanent solution to drafts and energy waste, it is recommended to air seal your entire house, upgrade your home's insulation, and fix any uneven temperatures with a professional service.
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R-value: The measurement of thermal resistance of a material
R-value is the measurement of thermal resistance of a material. The higher the R-value, the better the material is at stopping hot or cold air from passing through. For example, a standard double-pane window has an approximate R-value of 2.
Window insulation kits often claim that installing plastic film on windows will help save on energy bills, but the results are often minimal. Plastic window coverings may add a layer of insulation, but they are not a permanent fix for drafts, uneven temperatures, or energy waste. While they can be an effective temporary solution for older homes with leaky windows, they are not necessary for newer homes with higher-quality windows without noticeable gaps.
To truly fix issues with drafts, uneven temperatures, and energy waste, it is recommended to air seal the entire house, upgrade insulation in the attic and basement, and address any core issues causing discomfort and energy waste.
There are alternative solutions to plastic window film that can provide better insulation. Thermal curtains, for example, can offer a higher level of window insulation and provide additional benefits such as sound dampening and light blocking. Solar window film is another option that can help block summer heat and add a mild layer of heat protection.
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Locating air leaks: Tricks to find leaks, which can be small and unnoticeable
Locating air leaks can be tricky as they are often very small and barely noticeable. However, there are several quick and easy ways to locate them.
Firstly, you can try the light test. During the day, turn off all the lights inside your home and look around the window frames for light coming through. If light is coming through the window frames, cold air is leaking through as well.
Another method is the candle test, which is a more effective way to detect air leaks. Simply light a candle and trace the edges of the window frames with the flame. Air coming through the window frame will pull the smoke from the candle in the area of the window seal leak. You can also use a candle in conjunction with a buddy blowing air on the windows from the outside with a leaf blower or hair dryer. The lit candle on the inside will flicker when the forced outside air comes through the window frame.
You can also use a smoke pen, incense, or a burning incense stick instead of a candle to detect air leaks. If the smoke is blown away from the stick or wavers, that indicates that there is unwanted air movement.
A simple and inexpensive way to locate air leaks is to use toilet paper or tissue paper. Cut a length of toilet paper and move it slowly and carefully around the perimeter of your window and door frames. If the paper wavers, you've found an air leak. A light waver indicates a small leak, while a big waver suggests a larger problem.
Finally, you can try an air leak detector, a small handheld device that uses sensors to detect air leaks. There are two types: ultrasonic and thermal. Ultrasonic detectors identify the high-frequency sound of air escaping from a hole or crack, while thermal detectors work by identifying temperature differences between the inside and outside of a home.
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Window insulation kits: Do they work as advertised to reduce heating costs?
Window insulation kits are often advertised as a way to reduce heating costs and prevent drafts. While they can be an effective temporary solution for some older homes, they are not a substitute for proper insulation and air sealing.
Window insulation kits typically involve applying a layer of plastic film to the window to create an extra layer of insulating air, reducing heat loss and preventing drafts. The plastic is cut to fit the window and adhered with double-sided tape before being shrink-wrapped with a hair dryer. This process can be tedious and must be repeated each winter.
The effectiveness of window insulation kits in reducing heating costs is limited. While they can provide some extra insulation, they do not address the core issues causing energy waste in a home, such as air leaks and inadequate insulation in attics and basements. Upgrading insulation and air sealing the entire house are more effective long-term solutions. Additionally, the plastic film may not be aesthetically pleasing and can make it difficult to open and close windows.
However, window insulation kits can be useful in certain situations. For older homes with leaky and drafty windows, the kits can be an inexpensive and easy-to-install temporary solution to prevent leaks and drafts. They can also reduce moisture buildup on windows due to condensation.
There are alternative solutions to window insulation kits that can be more effective in reducing heating costs. Thermal curtains and blinds, for example, can provide a higher level of window insulation and offer additional benefits such as sound dampening and light blocking. Caulking and weatherstripping can also be used to seal gaps and cracks around windows and doors, preventing air and water leakage.
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Alternative solutions: Thermal curtains, blinds, and solar window film
While plastic film kits are often advertised as a way to reduce heating costs, the science behind this claim is questionable. They are supposed to reduce cold or hot air from entering your house through your windows, but the R-value, which measures the thermal resistance of a material, is low for these kits.
Thermal curtains
Thermal curtains are an excellent alternative to plastic film kits as they provide a higher level of window insulation. They use a triple or double layer of fabric with a thick backing and may include a synthetic lining that resists moisture. The batting in the fabric serves as a barrier that prevents cold air from entering the room. They also dampen outside noise and provide maximum privacy. They are easy to install and come in a variety of colours and sizes to match your home decor.
Blinds
Blinds are another option to consider. Bamboo blinds, for example, can provide privacy while also allowing light to enter the room. For maximum light blocking and insulation, blackout curtains can be paired with blinds.
Solar window film
Solar window film is a temporary solution that can be installed directly onto window glass to block out UV rays and add a layer of heat protection. This film lets in natural light while reflecting the sun's heat away from your home, helping to keep your home cooler in the summer.
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Frequently asked questions
Yes, plastic shrinks can help with cold windows. Plastic window covers may be a good temporary solution if you live in an older home and are looking for a way to prevent leaks and drafts from your windows.
First, cut the plastic to fit your window and use double-sided tape to adhere it across the entire pane. Then, use a hairdryer to shrink-wrap the plastic film to fit snugly across.
Plastic window film is an inexpensive, effective, and easy way to prevent drafts and reduce heat loss through older windows with less energy efficiency.
Yes, you can install solar window film to help block heat from coming through your windows during the summer. Another alternative is to install thermal curtains, which can provide a higher level of window insulation than plastic film.
Yes, one potential issue is that applying plastic over your windows can prevent you from opening and closing your mini-blinds. Additionally, plastic window insulation is only a temporary solution and must be repeated each winter.
