how window tint works

How Does Window Film Work?

In Window Film Technology by xponent21

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First, what is window film?

Window film or window tint is an adhesive layer that can be applied to your existing glass windows to serve a variety of functions including:

Increased energy efficiency, resulting in savings on your utility bills and improved sustainability
Strengthened security
Added safety to protect residents or tenants in the event of a heavy storm or acute impact
Improved comfort as a result of better temperature control and reduced glare
Reduced UV exposure, which not only protects your skin, but also protects furniture, floors, and belongings from the fading effects of the sun
Added stylistic and decorative touches
Enhanced privacy

So how does a transparent window film do all that?

The answer lies in the science of reflection and transmittance of light. Energy travels from the sun to the earth and through our windows at different wavelengths. Solar radiation can be broken down into 3 types of light based on these wavelengths: visible light, infrared light, and ultraviolet light.

Visible Light

Visible light refers to the light we can see. In many cases, our clients want to preserve visible light in order to maintain the aesthetic appearance of the glass. That is, they don’t want their glass to appear tinted as a result of window film application. In other cases, a client may want that tinted look in order to limit the amount of visible light and reduce brightness. To meet these different needs and preferences, window film products are designed to allow for varying levels of visible light transmission (VLT). The higher the VLT of the window film you select, the more visible light is transmitted through the window and the more optically clear the window film will be.

Infrared Light

Infrared light comprises over half of the total energy from the sun. Infrared light is not visible to the human eye, but is part of the solar radiation that we feel as heat. Window films are designed to block transmittance of infrared light in order to provide optimal heat rejection and help us maintain comfortable interior temperatures without exorbitant heating and cooling costs.

UV Light

The smallest fraction of the sun’s light travels to the earth in the form of ultraviolet light. UV light has been identified as a leading cause of skin cancer, and UV rays are the primary cause of the fading of floors and furniture that is caused by sun exposure. Because of the damaging effects of UV light, 3M has engineered window films that block up to 99.9% of UV light by reflecting it back away from the glass, without any change to the visual appearance of your window.

A window film solution for every client

The great thing about the window film products on the market today is that there is an option to address every desired outcome and application that a client may hope for in their window film. Whether your primary concern is security or style, cold winters or sweltering summers, there is a product designed with your specific objectives in mind, and we carry films to meet any aesthetic goal. Whatever your window tint needs are, you can rest assured knowing that the film is working 24 hours a day to protect your home or office and keep you comfortable.

Doyle Window Tinting is the Delaware Valley’s largest 3M window film dealer. We are proud to provide our clients in the residential, commercial and government markets with products that meet their needs and exceed their expectations. To learn more about window film or to schedule an appointment for a free estimate, give us a call today or get in touch on our contact page.

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