An estimate of a window film’s light transmission percentage is an indication of the darkening ability of the film, or how much light the film lets through the coated window.
For a home, the most common darkness level, or visual light transmission percentage is between 25% and 45%.
On windows with very high heat transmittance or where there is a need for a considerable amount of glare reduction, it is not uncommon to have a shade that is much darker (5%-15%). With the introduction of heat-rejecting ceramic films, we have also seen an increase in the installation of high light transmission window films (50%-70% light transmission), which are used in homes and businesses for clients who want heat rejection and UV protection but do not need or require glare reduction, or who want the highest light transmission without sacrificing heat rejection. It is imperative to consider many factors when choosing the correct window tinting shade for your homes, such as the type of windows that will be coated, the HOA rules, and your personal preferences with regard to privacy and light blocking. Furthermore, when selecting the proper shade for window tinting, you have to consider if the main reason for the tinting is to reduce glare. In addition, you have to consider if you want to maintain an exterior to interior view or not. In summary, there are many factors to consider when it comes to choosing the right amount of darkness or window tinting percentage for your home or business. Having an experienced professional window film installer will help better understand what will work best for your home’s conditions and requirements and guide you in the right direction when it comes to picking a film for your home.