May 10 2023 Sophia

Even though solar films are an excellent way to reduce energy costs and increase comfort in a building, not all windows are suitable for solar film installation. In this article, we will discuss the types of windows that should not have solar films installed.

 

Visibly chipped/damaged glass

If the window is already cracked or chipped, installing solar film can put additional stress on the glass and make the damage worse. This is so as solar films are installed on the interior of the room and work by either absorbing or reflecting heat. This means that heat will be trapped between the window and the film. In normal cases where the window is in good condition, this slight thermal build-up typically will not have an effect on the window. However, if the window is already damaged or cracked, it may not be structurally strong to withstand this thermal build-up and might cause the window to shatter.

In addition, if the window is old and damaged, it may have gaps and cracks that allow air to leak through, which can reduce the efficiency of the solar film.

Lastly, solar films need a smooth surface to adhere to. If the window is old and damaged, the film may not adhere properly, which can cause it to bubble or peel over time.

Therefore, it is recommended to repair or replace damaged windows before installing solar film. This will ensure maximum efficiency, safety, aesthetics, and durability.

Low-E Windows

Low-E (low-emissivity) windows are known as energy efficiency windows as they reduce heat loss or gain in the building. These windows have a special coating that reflects the sun’s rays, helping to keep buildings cooler in the summer and warmer in the winter.

Homeowners with Low-E windows may choose not to install solar films for several reasons:

• Double Functionality: Low-E windows are already designed to reflect and absorb solar radiation.
• Potential Damage: Installing solar film on the same side as the Low-E coating may cause the low-E coating to deteriorate over time. That is why it is important to consult a window specialist to determine the suitability of your window for solar film installation.

However, there are homeowners who still choose to install solar films on top of their Low-E coating – despite potentially voiding their windows warranty – as Low-E windows may not block all of the sun’s rays. Installing solar films can provide additional protection against UV rays as well as further reduce the amount of heat and glare that enters the room, making it more comfortable and reducing the need for air conditioning.

Triple-Pane Windows

Installing solar film on a triple-pane window may not be necessary because triple-pane windows are already designed to be highly energy efficient and provide excellent thermal insulation.

Triple-pane windows consist of three layers of glass with two spaces between them, which helps to trap air and improve the insulation properties of the window. Additionally, some triple-pane windows are coated with a low-e coating, which further enhances their energy efficiency by reflecting heat back into the room.

The addition of solar film to a triple-pane window may not provide significant additional benefits in terms of solar control or energy savings. In fact, it may even reduce the amount of visible light that enters the room, which can be undesirable for some people.

Tinted glass thicker than ¼”

Tinted glass are designed to reduce the heat from entering the building by absorbing solar heat. As such, adding another layer of film on top of that may not be necessary.

Also, installing a solar film on a window that is already tinted can cause the window to appear darker than intended. A dark window tint means that it will absorb more heat. If the window absorbs large amount of heat and is not able to dissipate it fast enough, it can cause the glass to become too hot, which may result in the glass cracking or becoming damaged over time.

Textured or patterned glass

Solar films can only be applied on flat and smooth surfaces. Textured or pattern glass have uneven surface, making it difficult for the window film to adhere properly. These gaps can allow air to leak through, which can reduce the efficiency of the solar film.

Conclusion

In conclusion, solar films can be a cost-effective way to reduce energy costs and increase comfort in a building. However, not all windows are suitable for solar film installation. If you have any doubts or concerns about whether your windows are suitable for solar film installation, it is best to consult a professional. They can help you choose the right product and install it properly for maximum effectiveness and longevity.

 

Got any questions about solar films that haven’t been answered here? Feel free to contact us. We’re happy to help home owners in their home solutions journey.

At Jestac, we distribute world-class 3M Solar Films for customers across Singapore. If you are shopping around for window films and other interior solutions, feel free to take a look at our prestige solar films, visit our blog, or request custom pricing using the button below.

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