Applying window tint to the outside of a house window is possible, and in some specific scenarios, it might be necessary or preferred. Yet, placing tint on the exterior comes with considerations and potential challenges compared to the more common practice of interior application.

Here’s what happens when you put window tint on the outside…

1. Exposure to the Elements

• Increased Wear and Tear – Exterior-applied tints are directly exposed to weather elements such as rain, snow, and sunlight. This exposure can lead to quicker degradation of the film, including fading, peeling, and cracking.
• Potential for Damage – The tint is more susceptible to physical damage from external forces, like debris during storms or scratches from cleaning and maintenance activities.

2. Effectiveness

• Heat Rejection – Exterior tints can be very effective at rejecting solar heat before it enters the window glass, potentially offering slightly improved heat rejection performance compared to interior tints.
• UV Protection – Just like interior tints, exterior-applied films can block harmful UV rays, protecting interior furnishings from fading.

3. Durability Concerns

• Specialized Exterior Films – To address durability concerns, manufacturers offer films specifically designed for exterior application. These films are usually more robust, featuring additional UV inhibitors and protective coatings to withstand environmental challenges.
• Shorter Lifespan – Even with advancements, exterior films generally have a shorter lifespan than their interior counterparts due to direct exposure to harsh conditions.

4. Installation and Maintenance

• Weather-Dependent Installation – The installation process for exterior window tinting is weather-dependent. It requires dry, mild conditions to ensure proper adhesion and curing of the film.
• Maintenance Challenges – Cleaning and maintaining exterior-applied film can be more challenging, especially for windows that are not easily accessible.

5. Aesthetic Impact

• Visibility – Exterior window films might be more visible and alter the appearance of the house from the outside more noticeably than interior tints.
• Variety and Customization – There is a wide range of options available for both exterior and interior films, allowing for customization in terms of aesthetics, privacy, and solar control.

Conclusion

While putting tint on the outside of house windows is an option with certain benefits, particularly for specific types of glass or architectural needs, it’s crucial to consider the potential downsides such as increased wear and tear, and the necessity for specialized exterior-grade films. If you’re considering exterior window tinting, consulting with a professional installer who can recommend the best type of film for your needs and environmental conditions is crucial. This ensures you achieve the desired benefits while maximizing the longevity and effectiveness of your window tint.