KESPEN One Way Window Film, 35-Inch x 8-Feet

Last updated date: November 5, 2019

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KESPEN One Way Window Film, 35-Inch x 8-Feet

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We looked at the top Heat Control Window Films and dug through the reviews from some of the most popular review sites. Through this analysis, we've determined the best Heat Control Window Film you should buy.

Update as July 30, 2020:
Checkout The Best Heat Control Window Film for a detailed review of all the top heat control window films.

Overall Take

In our analysis of 28 expert reviews, the KESPEN One Way Window Film, 35-in x 8-ft placed 4th when we looked at the top 10 products in the category. For the full ranking, see below.

From The Manufacturer

KESPEN one way window film Privacy window film Smart ways to bring beauty, safety and cool with KESPEN ONE WAY WINDOW FILM for your home– This reflective window films are designed to reduce the amount of heat transmitted through window glass by reflecting some of the heat back outside, but still allow light in to maintain your view. Static cling to the glass, easy to install, without worried about left residue when you remove; Customize the glass surfaces to suit your design needs and wishes. KEY FEATURES: Feel Safety with Good DAYTIME Privacy Protection: Make you always enjoy your personal time without the disturbance of external gaze. Get Comfortable with Saving Energy: Create cooler, more comfortable environment for you and your family, helping you to save money with lower air conditioning costs. Protection from UV Damage and Fading: Block 95% of the harmful solar rays that may hurt your skin and furniture. Easy to Install and Remove: No adhesive, stick by static cling, simply to apply with a lot of soapy water. No worries about damage or residue when you remove. PACKAGE INCLUDED: 1 x KESPEN Mirror Window Film Roll; 1 X installation instructions Reflective window tint Reduce Glare Protect your Privacy Fashionable & Cool Mirror Appearance: Improve the appearance of your windows by adding a designer look to the exterior of the whole building. Reduce Glare to Make You Relax: Annoying glare on TVs and computers? Our films significantly reduce glare to help you work, relax and entertain without added eyestrain and discomfort from excessive light. Customize the Glass with The Way You Want: Give you the freedom to transform glass surfaces to meet your design needs and wishes. UV window film Installation Instructions: Step 1: Make sure your windows are thoroughly cleaned. Step 2: Spray the windows with A LOT OF soapy water. Step 3: Measure the exact dimensions of your windows and carefully cut the film to the right size. Step 4: Remove transparent backing film from backing protect sheet, and spray A LOT OF soapy water onto the back side of the static film. Step 5: Pick up the wet film by the top two corners to paste the wet side of the film onto the wet glass, smooth the film with hands. Step 6: Spray the water onto the surface facing you, use the squeegee to remove extra water and air from center with proper strength. Step 7: Make sure the four corners are steadily adhered to the glass, trim off the margins, leaving 2-3 mm gap from the edge of the glass to the film. Step 8: Rewet the the surface of entire film and remove all the bubbles, wipe out surface water with a lint free towel. Useful Tips: Keep the window and film extremely wet during installation process. If it becomes dry, re-wet it completely before applying film. Before pasting, do remember to tear off the protective film ( transparent film). Spray more water on the glass and surface of the film, the more water, the better, and scrape all the bubbles out with a squeegee. Leave about 2-3mm gap from the window frame and the film to avoid falling off or curling; if there shows falling or curling, pick up a corner at the edge, re-spray and paste, and scrape the bubble.

Expert Reviews

Expert Summarized Score

1 expert reviews

User Summarized Score

430 user reviews

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Our Expert Consultant

Vicki Liston 
Home Improvement Expert

Vicki Liston writes, produces, and narrates “On The Fly…DIY,” an award-winning home improvement and DIY show of unique project tutorials for the casual DIY’er.

Home improvement and all things DIY have been Liston’s passion since she bought her first house in 2007 and she started making video blogs in 2014. She’s performed hundreds of DIY projects, from small ones to major, wall-smashing renovations and can teach you how to make a trendy DIY barn door for cheap. The proceeds earned from “On The Fly…DIY” are donated to no-kill animal shelters and rescue organizations. You can find her show on Prime Video.

An Overview On Heat Control Window Films

Your windows do a great job of keeping the interior of your home comfortable. But no matter how well-sealed those windows are, most let at least a small amount of the great outdoors in. That means in the summertime those 90-degree temperatures battle it out with your home’s air conditioning. It also means that your utility bills are higher than they have to be for at least a few months out of the year.

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Before you invest in special windows, there’s a much more affordable option. Window film easily applies to the glass of your windows, providing privacy and blocking the sun’s harmful ultraviolet rays. But as Vicki Liston, writer, host, and producer of home improvement show “On The Fly…DIY,” points out, not all window films insulate your home against those scorching summers.

“Look for a film that advertises ‘UV,’ ‘heat control,’ or ‘solar control’ features, as they are specifically designed to keep the heat out,” Liston says. “Metallic film or ceramic film will provide the best heat-controlling results.”

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While both metallic and ceramic film is effective, Liston has found that some consumers don’t like the mirrored look metallic film brings to their windows. Ceramic film is better in those cases. She also recommends ceramic film for those who live near seawater since salty air tends to gradually corrode metallic film.

Beyond all of those features, though, there’s the simple fact that different films provide a different look to your windows. You’ll have the option of simply shading your window or creating a decorative look. Stained glass is very popular in window films, so that could be something to give your room a little pizzazz.

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In addition to cutting down glare and keeping your home better insulated, window films also protect your belongings. Instead of the sun shining in on your furniture day after day, your window film will block UV rays, keeping your upholstery and other items like new for as long as possible.

The Heat Control Window Film Buying Guide

  • Before you start shopping, it’s important to know the difference between the light-blocking properties of each type of film. This is essential because it determines how much of the outdoor heat your privacy film can keep out. You’ll get the most insulation from Gila Privacy Black Window Film, 36×78-Inch, which blocks 99 percent of all UV rays and 94 percent of glare. You’ll get 85-percent sunlight blocking with the CottonColors Heat Control Privacy Glass, 35×79-Inch.
  • However, there can be a downside to all that sunlight reduction. As Liston points out, you’ll lose some natural light when your insulating film is too strong.

“A film with a total solar energy rejection number in the 70-percentile range will make your home feel much cooler while not inhibiting too much natural light,” Liston says. “UV rejection in the 90-percentile range is common and will minimize damaging rays and contribute to the heat reduction.  If you want more natural light in your room, go with a film that denotes 60-70% light transmission. However, many people find a 49% light transmission to be a good compromise between allowing some natural light in while keeping the glare to a minimum.”

  • If natural light is a priority for you, you might prefer HIDBEA UV Window Film, 35-Inch x 8-Feet in silver, which reduces sunlight only by up to 71 percent.
  • CottonColors Heat Control Privacy Glass, 35×79-Inch also helps out in the wintertime, reducing heat loss from your home by 30 percent.
  • One side benefit of privacy film is the actual privacy it provides. It’s important to note that some movements and shadows can still be seen, particularly with films that let in some natural light. Check to ensure your chosen film offers maximum privacy before choosing it for an area like a bathroom or bedroom.
  • Installing your window film should be fairly easy, as long as you choose a film that doesn’t require glue or adhesive to install. Rabbitgoo Privacy Window Film, 35×157-Inch, CottonColors Heat Control Privacy Glass, 35×79-Inch and HIDBEA UV Window Film, 35-Inch x 8-Feet install using water. Gila Privacy Black Window Film, 36×78-Inch uses static cling, and static cling applications can be less durable than those that apply using water.
  • The Rabbitgoo Privacy Window Film, 35×157-Inch comes in seven different sizes. With other privacy films, make sure you buy a size that’s larger than what you need so that you can cut it to fit during install.
  • Technicalities aside, your choice will probably come down to how the film itself looks when installed. Rabbitgoo Privacy Window Film, 35×157-Inch and CottonColors Heat Control Privacy Glass, 35×79-Inch have a stained glass look that makes them more ideal for bathrooms and smaller windows. If you’re covering a large sliding glass door or you just want something less obvious, HIDBEA UV Window Film, 35-Inch x 8-Feet is a great option. It gives your window a subtle tint in black, blue, brown or silver, depending on the color you choose. Gila Privacy Black Window Film, 36×78-Inch tints your window in a shade of black to darken the room.