How Much Heat Does Automotive Window Tint Block?

Metropolitan Tinting Blogger • June 6, 2023

Is automotive window tint effective in blocking the sun's heat? Find out here, and then get in touch with our window tinting experts in the Alpharetta area.

automotive window tint

It might surprise you to learn that more than 50% of UVA rays from the sun can penetrate glass.


Reducing exposure to UV rays is one of the many reasons people choose to invest in automotive window tint. The same can be said about heat reduction, but not everyone understands how much heat window films block.

Let's look at the key facts you need to know.

How Does Window Tinting Work?

Although this process might initially seem complicated, it's simpler than most people assume.

There are four basic principles to how window tinting works: reflection, absorption, radiation, and transmittance.


The primary job of window tint is to reflect as much light as possible. By extension, this also reflects harmful rays from the sun. The window tint's absorption properties allow it to contain a percentage of the sun's rays without allowing them to enter the vehicle.


This minimizes the amount of visible light and glare that passes through. Depending on the tint that you use, it can block different levels of visible light.

The radiation aspect of the window tint refers to how it dissipates heat. Transmittance refers to how much light passes through; low transmittance is better than high.

The Different Types of Window Tint Explained

There's a handful of different types of window tint you can choose from. Keeping this information in mind will help you make the best decision for your needs.

Let's look at some of the most notable.

Metalized Window Tint

These tints contain metal microparticles. This allows them to reflect sunlight instead of absorbing it.

Compared to many other types of window tint, metalized tints are much more effective at reflection. It's also known for being very scratch resistant and unlikely to shatter during impact.

Metalized tints create a shiny appearance for the windows, which is something that many people find enjoyable. But unfortunately, this type of tinting can interfere with radio or GPS signals.

Hybrid Window Tint

These use a combination of metal particles and dyes. For example, a thin metal layer of titanium is in between several dyed layers.

They often have much less radio interference compared to metalized tints. They also don't create a metallic appearance on the surface of the windows. This is a great place to start for those looking for an affordable option.

Carbon Window Tint

These window tints were composed of carbon fiber particles. One of the primary benefits is that they will not fade over time. They are also one of the most effective options for blocking UV rays from the sun.

Their matte finish is a favorite of many customers, as it looks sleek and professional. Carbon tinting also boasts strong insulation, allowing it to reduce the internal vehicle temperature significantly. Carbon tint is often much more expensive than other products, but its longevity and durability make it worth the price.

Dyed Window Tint

Dyed tints used dyed film to absorb sunlight as it penetrates the glass. It's the most affordable and most common type of window tint that people purchase. These tints offer a similar amount of UV protection that other options do, but they also tend to fade over time. As they fade, they become less effective.

Ceramic Window Tint

Ceramic tinting is known for its ability to block the majority of UV rays.

It also has no medical particles or dyes, meaning it won't interfere with radio signals. The particles in this tint don't conduct heat, offering increased insulation while providing a notable level of sunlight reflection.

It can also reduce glare and is highly resistant to shattering. Keep this in mind when moving forward.

auto window tinting near me

Total Amount of Blocked Heat

The total amount of heat your tint will block will depend on numerous factors. Primarily, the type of tint you have dictates your results.

In general, you can expect to block approximately 40% to 50% of the infrared rays that heat the interior of your vehicle.


Higher-end options can block approximately 50% of infrared rays. More expensive tints can also block nearly 100% of UV rays. The best option for you will depend on your individual needs.

If you don't mind how hot your car gets, you could choose a tinting option with lower-end heat reduction. In contrast, you can take advantage of a window tint that offers better protection if you find getting into your car after a long day uncomfortable.

Getting Started With Window Tinting

You will need to work with a reputable professional to get the best results. Research their past reputation to gain insight into the results you'll get. See what other customers have had to say about how long the process took, the longevity of the tinting option they chose, and any issues they may have encountered.

You should also consider how comfortable you are communicating with a sales representative. If they seem pushy or unwilling to answer your questions, this is a red flag you shouldn't ignore.

Ensure that they offer the tinting options you need. This will help you get the best possible outcome.

Don't Overlook Automotive Window Tint

Automotive window tint plays a significant role in heat reduction. Consider the above guidelines to determine if it's the right choice for you. This will help you enhance your driving experience and protect you from the sun's harmful rays.


Contact us today at Metropolitan Tinting. Our team of certified professionals can help you decide on the best course of action for your vehicle.

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