What is Spectrally Selective Window Film?


Spectrally selective window film works to improve the overall thermal efficiency of your home or business without the hassle and cost of replacing the whole window. They’re known for their excellent thermal insulation properties and a barely-there appearance that doesn’t change the look or feel of your space.

Protect Your Space by Rejecting the Sun’s Rays

Spectrally selective film uses innovative technology to reduce the amount of heat and UV rays that pass through your existing windows. These technologies help cool hot spots, while allowing in as much light as possible.

How Is Spectrally Selective Film Different From Traditional Solar Film?

The term “spectrally selective film” has been used in regards to solar film in recent years. Spectrally selective film is different from the more conventional solar film in that the chemistry that is rejecting solar energy does not use shading or reflectivity that is visible to our eyes. These window films have been engineered to allow the maximum transmission of visible light while rejecting the maximum amount of UV and Infra Red wavelengths. This results in a product that begins by not impeding our view outside while improving our visibility by reducing glare.

How Is Window Film Classified As Being Spectrally Selective?

Some interpretation of this may vary, but technically speaking, window film is commonly classified as a being spectrally selective if the ratio of its VLT to SHGC is greater than 1.

A good of example of Spectrally Selective Film are:

Purelite 60; VLT is 60% and its SGHC is 0.57 = 0.60/0.57 for 1.05

Your Solution to Reducing Heat

Clear spectrally selective window film offers one of the best options for reducing heat gain by rejecting the sun’s heat through windows. Also, similarly to Solar Window Film, it works to reduce fading in furniture caused by the sun, without compromising your view outside.

Explore Our Spectrally Selective Window Film

Our spectrally selective window film will protect your space, whether your home or business, from unwanted UV rays and heat gain. To learn more about our window film products or to request a consultation, reach out to our expert team at Window Film Systems.

Read More


Top 10 Facts About Window Film


Discover 10 surprising facts about window film and its benefits, from reduced UV exposure, privacy, and more. Learn how we can help transform your home or office.

Window Film Systems Celebrates 45 Years


Window Film Systems celebrates 45 years in London, offering solar control, decorative, security films, and more. Learn about our journey to excellence.

Best Window Film for Reactive Dogs


Discover the best window film solution for reactive dogs. Reduce barking and maintain natural light with frosted, decorative, and gradient window film.