Plastic On Windows: Worth The Cost?

Plastic window insulation is a common method used to improve energy efficiency and reduce uncomfortable temperatures in homes. It involves applying a thin plastic film or sheeting to the interior or exterior of windows, which can help trap air, seal out weather conditions, and prevent UV rays from entering. While it may not provide a significant impact on energy savings in all climates, it can be particularly beneficial in cold weather, with potential energy bill reductions of up to 10-40%. However, the effectiveness of plastic window insulation also depends on the type of windows and the presence of air leaks, with some sources suggesting that sealing the entire house is a more effective solution.

Plastic window insulation can save you money

Plastic window insulation also helps to regulate temperatures during the summer. While the energy savings may not be as significant as in colder periods, electricity for air cooling is typically more expensive per unit of energy. Therefore, using plastic insulation can still lead to financial savings during warmer months.

Additionally, plastic window films can provide extra security by preventing prying eyes from outside and adding a protective layer that prevents the window from shattering if smashed. They also block UV rays from entering your home, protecting your furniture and other belongings from fading.

However, it is important to note that plastic window insulation may not be as effective as other measures, such as air sealing your entire house or upgrading your home's insulation. The impact of plastic window insulation may also be minimal, especially if your windows are already relatively energy-efficient. Some people may also find plastic window insulation unattractive or cumbersome, as it can be delicate and make it difficult to open or close blinds or windows.

Overall, while plastic window insulation may not lead to dramatic reductions in energy bills, it can still be a cost-effective solution to improve energy efficiency, particularly for older, drafty houses.

It's an affordable option to keep your home warm

Plastic window insulation is a cost-effective way to keep your home warm. It is a simple, affordable option to enhance the energy efficiency of your home. The plastic films are designed to prevent UV rays from entering your house, protecting your furniture from fading. They can also add an extra layer of security, as they can prevent windows from shattering.

The plastic films act as an insulator, trapping air between the window glass and the film, and sealing out the weather. This layer of air can significantly boost the R-value of a single-pane window, reducing heat loss. For example, adding a single layer of window film can take double-pane windows from an R-value of 2.0 to 3.0, a 33% reduction in heat loss for the windows. Similarly, a single layer of film can take a single-pane window from an R-value of 0.9 to 2.0, a 50% saving for windows only, and a whole-house saving of 29%.

The kits are designed for easy installation, although you may need to purchase extra heavy-duty tape as the tape included in the kits is often weak. To install, you will need to clean the window and frame, measure the window, cut out the plastic film, apply double-sided tape to the window frame, and then affix the film. You can use a hairdryer to eliminate wrinkles and make the plastic taut and unnoticeable.

However, it is important to note that plastic window insulation may not be as effective as other options, such as weatherstripping materials, and it can be delicate and easily torn. Additionally, plastic film can be difficult to apply if you have blinds, and it may not be permitted by your window manufacturer's warranty.

It's easy to install

Installing plastic on windows is a straightforward and simple process that can be completed in a few easy steps. This do-it-yourself project can be accomplished with a few basic tools and materials that are readily available at any hardware store.

The first step is to measure the windows accurately. Measure the width and height of each window pane and add an extra inch to the measurements to ensure a proper fit. It is important to measure each window individually as they may vary slightly in size. With the measurements, you can then cut the plastic sheet accordingly.

The next step is to clean the window panes thoroughly. Use a glass cleaner and a soft cloth to ensure the glass is free of any dirt, dust, or residue. This step is crucial as it ensures the plastic will adhere properly to the glass. Once the windows are clean and dry, you can begin attaching the plastic.

There are a few methods to attach the plastic to the window. One common method is to use a double-sided adhesive tape. Apply the tape along the edges of the window pane, creating a frame. Then, carefully place the plastic sheet over the adhesive tape, smoothing out any bubbles or creases as you go. Another method is to use a spray-on adhesive. Simply spray the adhesive onto the window pane and carefully place the plastic sheet, again smoothing out any air bubbles.

For a neater finish, consider adding a layer of caulking along the edges of the plastic. This will create a seal and give your project a more professional look. With these simple steps, you can easily install plastic on your windows.

It can be used to prevent UV rays from entering your home

Plastic films installed on windows can help prevent UV rays from entering your home. Windows are the components of your home that allow the most sunlight in, and UV exposure can be direct and indirect. Even if you are indoors, you can still soak up the sun's harmful UV rays.

Standard clear glass windows provide very little blocking of harmful UVA and UVB rays. Bare glass windows allow up to 74.3% of UVA radiation to pass through. UVA rays can bounce off reflective surfaces like water and, during the workday, they can penetrate window glass. One source says that window glass filters out most UVB rays, while another says that all types of glasses tested blocked UVB rays.

To prevent UV rays from entering your home, you can install UV-blocking window films. These plastic films retrofitted to glass absorb and reflect UV light. Window films can block up to 99% of UV rays and 50% of infrared light. They also won't darken your windows excessively, and some are even virtually invisible.

However, it is worth noting that the window insulation kit industry claims that installing plastic film on windows will help save a lot on energy bills, but the science does not back this up. In most circumstances, the plastic film would be almost imperceptible during a blower door test, which is the test used by home performance contractors to determine the amount of unwanted air exchange in your home.

It can reduce drafts from leaking windows

Plastic on windows can significantly reduce drafts from leaking windows, providing multiple benefits for homeowners.

One of the primary functions of applying plastic to windows is to create an effective barrier against air infiltration. By sealing the windows with plastic, you can prevent cold air from entering your home during the winter months and warm air from escaping, helping to maintain a comfortable indoor temperature. This not only improves energy efficiency but also reduces the strain on your heating system, leading to lower heating costs.

The process of applying plastic to windows is relatively simple and can be completed as a

Frequently asked questions