June 30, 2025
written by Laura P
Our top-performing heat-shielding films
Heat-blocking films: the most effective models
In the summer, the heat that seeps in through the windows can quickly turn your home into a veritable greenhouse! This phenomenon affects your comfort and leads you to use the air conditioning more often, which drives up your energy bill.
Fortunately, there is a simple and effective solution: the heat-blocking film from Luminis Films. But which heat-rejection film performs the best? That’s what we’re going to find out together!
Anti-heat film: how does it work?
Window films are much more than just a simple accessory to stick on a window. They are based on a simple yet highly effective physical principle: the reflection of infrared rays.
Infrared ray reflection
Infrared rays are responsible for the heat you feel through your windows. Heat-blocking film acts as a thermal shield by reflecting these rays outward, thereby preventing them from building up inside.
Reduces heat without blocking light
Contrary to popular belief, these films don’t necessarily make your home darker. Some high-performance models effectively reduce heat while still letting in pleasant natural light. That way, you can stay cool without living in the dark!
Luminis Films' best-performing heat protection films
At Luminis Films, we offer a range of high-performance films to meet your specific needs. Here are our top 3 👇
Long-lasting reflective heat-rejection film – GLASSplus-241x
- Maximum thermal performance: it blocks up to 91% of infrared rays;
- High durability: designed to last for many years without losing effectiveness;
- Outdoor installation: ideal for south-facing windows;
- Visual appearance: slightly mirror-like, very modern.
Light Champagne Heat-Rejecting Film – MULTI-181i
- A balance between comfort and aesthetics: it blocks approximately 75% of infrared rays;
- Lightweight and unobtrusive design: perfect for maintaining indoor lighting levels;
- Indoor installation: easy to install, even for homeowners;
- Compatibility: Ideal for double-pane windows.
Silver Metallized Heat-Rejecting Film – GLASS-200x
- Excellent value for money: thermal efficiency of up to 85% infrared radiation;
- High-gloss finish: perfect for creating a sense of privacy;
- Recommended for outdoor installation: to minimize the risk of thermal breakage;
- Long-lasting solution: high UV protection and weather resistance.
Medium-silver semi-metallized heat-rejecting film – GLASS-201x
- High IR rejection: approximately 80% of infrared light is filtered out;
- Balanced look: medium silver finish, softer than a standard mirror;
- Outdoor installation: a durable solution for picture windows or sunrooms;
- An excellent balance of performance, aesthetics, and durability.
Which heat-reflective film should I choose?
The benefits of heat-reflective film for your everyday comfort
Reduced indoor temperature
With a good window film, you can see a drop of 3 to 5°C in your sunniest rooms. What a relief during heat waves!
Less air conditioning = energy savings
By limiting your use of the air conditioner or fan, you can lower your electricity bills while doing your part for the planet.
UV protection
UV rays damage and fade your hardwood floors, furniture, and curtains. The film acts as a protective filter to extend the life of your home.
In short, Luminis Films’ heat-blocking films are a simple, effective, and long-lasting solution for improving the thermal comfort of your home. Whether you’re looking for maximum performance, a discreet aesthetic, or a good balance between the two, there’s a film that’s right for you.
Don't wait until temperatures skyrocket! Get a head start on the heat and have your window film installed now.
Request your free quote here.