Learn how window film reduces glare and heat, using a real airport installation as an example. Improve your commercial space's comfort and efficiency.
Understanding Window Film: A Practical Guide
Window film is a thin, transparent or tinted layer applied to the surface of glass. It's designed to enhance the performance of existing windows without the need for full replacement. Businesses and homeowners often turn to window film to address specific issues like excessive heat, glare, or fading.
How Window Film Works: Light and Heat Management
Window films work by manipulating the way light and heat interact with glass. Different types of film achieve this through various methods:
* **Reflectivity:** Many films have a reflective layer that bounces a portion of solar energy away from the window. This is particularly effective in reducing heat gain. * **Absorption:** Some films absorb certain wavelengths of light, preventing them from passing through the glass. * **Emissivity:** Specialized films, often referred to as "low-E" (low-emissivity) films, can also affect how well a window radiates heat. In hotter months, they help keep heat out, and in colder months, they help keep indoor heat in.
Glare Reduction: A Key Benefit
Excessive glare can be a significant problem, especially in environments with large windows or specific orientations, such as areas near the runway at John Glenn Columbus International Airport. Glare is essentially a strong, direct light that can cause discomfort and reduce visibility. Window films can mitigate this by reducing the amount of visible light that passes through the glass.
The Visible Light Transmission (VLT) is a measure of how much light passes through the film. A lower VLT means less light, and therefore less glare, enters the building. Spectrally selective films can reduce glare while still allowing a good amount of natural light to enter.
The Avery Dennison Silver 20 Example
In a recent project at [John Glenn Columbus International Airport](https://www.flycolumbus.com/), we applied Avery Dennison Silver 20 film to eight windows totaling 168 sq ft. This specific film has a highly reflective surface designed to significantly cut down on glare. For environments like airports, where clear visibility and reduced visual discomfort are crucial, this type of film provides a practical solution. The Silver 20 film effectively lowers the VLT, making the intense sunlight much more manageable for those working near the runway. For businesses seeking similar improvements in their facilities, exploring options like [commercial window tinting in Dayton, Ohio](/commercial-window-tint-dayton-ohio) can offer substantial benefits.
Beyond Glare: Other Window Film Advantages
While glare reduction was the primary goal in this airport installation, window films offer a range of other advantages:
* **Heat Reduction:** Many films improve the Total Solar Heat Gain Coefficient (TSHG), reducing cooling costs. * **UV Protection:** Nearly all window films block over 99% of harmful ultraviolet (UV) rays, preventing furniture, flooring, and artwork from fading. * **Safety & Security:** Thicker films can provide an added layer of protection against impacts and break-ins. * **Privacy:** Some films offer one-way or frosted effects for enhanced privacy.
By understanding how different window films work, businesses can make informed decisions to improve comfort, reduce energy costs, and protect their property.
---
[See the full project →](/projects/glare-reduction-window-film-at-john-glenn-columbus-international-airport-john-gl)