
Covering windows with plastic sheeting is an easy, effective, and inexpensive way to insulate your home. During winter, windows are a significant source of heat loss, and applying plastic film over the window openings creates a double-pane effect, reducing drafts and making your house feel warmer. This simple DIY project can be done using plastic heat-shrink window kits, which include clear plastic film and double-sided tape, or with common household items like package-sealing tape, duct tape, staples, or wooden battens and nails. By following a few simple steps, you can effectively cover your windows with plastic sheeting, improving insulation and reducing energy costs.
| Characteristics | Values |
|---|---|
| Purpose | Insulating windows, reducing drafts, preventing heat loss, reducing moisture buildup on windows, eliminating air leaks, and reducing energy costs |
| Materials | Plastic sheeting/film, window kits, heat-shrink plastic, double-sided tape, package-sealing tape, duct tape, staples, nails, wooden/metal frames, bamboo rods, spring-tension curtain rods, adhesive-backed rigid plastic molding strips |
| Tools | Incense stick, utility blade |
| Considerations | Window size, lease/rental agreements, potential damage to walls, cost, time, frequency of reuse, interior/exterior application, window blinds, window leaks |
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What You'll Learn

Detecting air leaks
One method is to light an incense stick and hold it close to the seams or sash of the window. Observe the smoke to see if it is pushed in a particular direction. If the smoke is being pushed, you likely have a leak. Alternatively, turn on exhaust fans that blow air outside, such as your clothes dryer or stove vents. With the fans on, light an incense stick and pass it around the edges of common leak sites, such as the seams or sash of the window. Wherever the smoke is disturbed, there is a draft.
You can also try using a damp hand to locate leaks, as drafts will feel cool to your hand. Shine a flashlight at night over all potential gaps while someone observes the house from the outside. Large cracks will be visible as rays of light. Another method is to shut a door or window on a dollar bill. If you can pull the dollar bill out without resistance, you are losing energy through that door or window.
If you are unsure, you can hire a qualified technician to conduct an energy assessment, particularly a blower door test, which can reveal the location of many leaks.
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Using plastic heat-shrink window coverings
To get started, you will need to purchase a heat-shrink plastic kit. These kits typically include window-sized pieces of plastic film and double-sided tape for attaching the film to your window. You can find these kits in various sizes at home improvement, hardware, or discount stores.
Before applying the plastic, cut it to be slightly larger than your window opening, leaving a generous margin for error (about a foot bigger in both dimensions). If you have mini-blinds, remember to remove the rotating wand before applying the plastic.
Once you have the plastic cut to size, use the double-sided tape to attach the plastic film to the window frame. Pull back the bamboo, place the plastic against the window frame, and let the bamboo snap back to hold it in place. You can also use spring-tension curtain rods or bamboo rods to hold the plastic in place, creating a neater result.
After installing the plastic, you may need to trim off any excess. This method will help insulate your windows, reducing heat loss during the winter months. When winter is over, simply remove the plastic and pull off the tape, which should not damage the window trim.
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Applying plastic without tape
Applying plastic sheeting over windows is a great way to reduce drafts and save on heating costs. While tape is a common method for attaching plastic, it can leave adhesive residue and stains. Here is a guide on how to apply plastic sheeting without using tape:
Choosing the Right Plastic Sheeting
Select a plastic sheeting that is slightly larger than your window to allow for a margin of error. You can purchase window film kits that include window-sized plastic film, or you can buy rolls of clear polyethylene sheeting in various sizes and weights.
Prepare the Window Frame
Before applying the plastic, ensure the window frame is clean and free of any debris. If you are applying the plastic to the interior of the window, you may want to use a hair dryer to tighten the film and create a neater finish.
Using Bamboo and Tension Rods
One method to hold the plastic in place is to use bamboo and spring-tension curtain rods. Place the plastic between the bamboo and the window frame, allowing the bamboo to snap back and hold the plastic. Then, use the tension rods to hold up the plastic, adjusting them to fit your window size.
Alternative Methods
Other alternatives to tape include using wooden or metal frames, wooden battens and nails, or adhesive-backed plastic molding strips. These methods may be more costly or time-consuming but can provide a more secure fit.
Reusing Plastic Sheeting
If you plan to reuse the plastic sheeting annually, consider using a lo-tac or painter's tape on the trim. This type of tape is less likely to damage the finish and can be removed more easily. You can also explore using plastic on the interior of the window, as it will be protected from the elements and may result in less adhesive residue.
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Using double-sided tape
Covering your windows with plastic sheeting is a great way to improve insulation and reduce heat loss. While there are various methods to attach the plastic film, such as using tape, glue, wooden frames, or metal frames, double-sided tape is a popular and effective option. Here is a step-by-step guide on how to cover your windows with plastic sheeting using double-sided tape:
Prepare the Window:
Before applying the plastic sheeting, ensure the window is clean and dry. Remove any dust, dirt, or debris from the window frame and glass to ensure a strong adhesion for the tape. It is also recommended to check for any air leaks around the window, as plastic sheeting can help improve insulation and reduce drafts.
Choose the Right Tape:
Select a double-sided tape specifically designed for attaching plastic film to windows. These tapes are often labelled as "window film mounting tape" or "double-sided window tape". They are available at hardware stores or online. Avoid using aggressive double-sided tapes meant for permanent applications, such as securing carpet to concrete floors, as they can damage your window frames when removed.
Cut the Plastic Sheeting:
Measure the size of your window and cut the plastic sheeting accordingly. Ensure you cut the plastic slightly larger than the window frame to allow for overlap. This will ensure a proper seal and help prevent drafts.
Apply the Double-Sided Tape:
Starting at the top of the window frame, apply the double-sided tape along the edges and corners of the frame. Create a frame of tape onto which the plastic sheeting will adhere. If your window has multiple panes, create a tape frame around each pane.
Attach the Plastic Sheeting:
Peel off the backing from the tape, exposing the adhesive. Carefully position and smooth the plastic sheeting over the tape, ensuring it adheres securely. Make sure the plastic is taut and free of wrinkles or bubbles.
Secure the Edges:
Use your fingers or a flat tool, such as a credit card, to firmly press and smooth out the plastic sheeting onto the tape. Ensure all edges are securely adhered to the tape.
Finish and Adjust:
Check for any air bubbles or wrinkles in the plastic sheeting and smooth them out. Use a hairdryer on a low setting to gently heat the plastic, which can help remove stubborn wrinkles and improve the adhesion of the tape.
Note: When applying plastic sheeting to the exterior of windows, be aware that tape may not adhere well to rough surfaces like brick. Consider using removable caulking or creating a wooden frame with foam to attach the plastic sheeting. Always follow the instructions and recommendations provided by the plastic sheeting manufacturer for the best results.
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Removing plastic in the off-season
When the cold season is over, and you no longer need the plastic covering your windows, you can easily remove the plastic without causing any damage. The first step is to take down the plastic. If you have used tape, the next step is to carefully remove it from the window trim. The tape should come off easily and without leaving any residue or marks on the window frame. You can then dispose of the plastic and the tape appropriately.
If you have used a heat-shrink kit, the plastic should come off easily, and you can use a utility blade to help remove any remaining adhesive residue. You can also use a hairdryer to heat up the adhesive and make it easier to remove. Be careful not to damage the window frame or the surrounding walls.
For those who have used staples, nails, or other more permanent fixtures, you will need to carefully remove them with the appropriate tools. You may need to fill in any holes left behind with wood filler or putty and then sand it down for a smooth finish.
If you have used a plastic film with a spring-tension curtain rod or bamboo rod, you can simply remove the rod and plastic film. This method is great for those who want a non-destructive way to hang plastic film over their windows.
Remember to always be careful and take your time when removing the plastic and any adhesives or fixtures. By doing so, you can ensure that your windows and the surrounding areas remain undamaged and ready for the next season.
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Frequently asked questions
Covering windows with plastic sheeting can reduce drafts, help the house feel warmer during winter, and reduce moisture buildup on the window due to condensation. It can also eliminate air leaks around the window if the plastic extends over the woodwork.
Heat-shrink plastic can be purchased in kits that contain double-sided tape for attaching the clear plastic film. DIY solutions include using common package-sealing tape, duct tape, staples, or even wooden battens and nails. However, these methods may leave stains, adhesive residues, or physical damage on walls surrounding windows. An alternative solution is to use wooden or metal frames to insert into window openings, but this can be costly and time-consuming. Another option is to use spring-tension curtain rods or bamboo rods to hold the plastic in place.
One way to check for air leaks is to light an incense stick and hold it next to the seams or sash of the window. Watch the smoke to see if it is pushed in a particular direction. If the smoke is pushed one way or another, you likely have a leak. Alternatively, close your window on a piece of paper and try to pull the paper out. If the paper slides out easily without tearing, then you likely have a leak.











































