Keeping heat out of your attic: the role of roof window blinds

During warm summer days, the attic is often the first room in the house to heat up. Especially when the sun shines on the roof all day, temperatures can rise quickly. This can be uncomfortable if you use your attic as a bedroom, home office or hobby room.

A large amount of heat enters through the roof window. Fortunately, there is something you can do about it. With the right roof window blinds, you can reduce solar heat gain and keep the room comfortable for longer. However, not every type of window covering is suitable for a roof window.

In this article, you'll discover why roof windows require a specific solution and which KeJe window coverings help keep the heat outside.

Why does an attic get so hot in summer?

A roof window is exposed to a lot of direct sunlight. Because the window is installed at an angle, the sun often shines directly onto the glass for extended periods. As a result, the glass heats up quickly and transfers heat into the room. This causes attic temperatures to rise much faster than in other parts of the house.

Attics that are used as bedrooms, home offices or playrooms can become particularly warm during hot summer days. One of the best ways to reduce heat is to block as much sunlight as possible before it enters the room.

Do roof window blinds help reduce heat?

Yes. Just like blinds for standard windows, roof window blinds create an extra layer between the glass and the room. This helps block part of the sun's heat before it enters your living space. An insulating air layer is also created between the window and the blind, helping to regulate indoor temperatures more effectively.

Not every type of window covering offers the same level of heat protection. For roof windows in particular, it's important that the blind fits tightly against the frame and remains securely in place.

Why do roof windows require special blinds?

A roof window differs significantly from a standard vertical window. Because it is installed at an angle, gravity affects the window covering differently.

Freely hanging blinds may start to sag or no longer stay neatly against the window. Besides affecting the appearance, this also reduces their insulating performance.

That's why specially designed roof window blinds are often the best solution. These systems are securely mounted to the window frame and fit tightly against the glass, ensuring they stay firmly in place while improving thermal performance.

Which roof window blinds does KeJe offer?

KeJe offers several made-to-measure solutions specifically developed for roof windows. These blinds remain securely in place, fit neatly against the frame and help reduce heat build-up in your attic.

Fixed Pleated Blind: specially developed for roof windows

The Fixed Pleated Blind is specifically designed for roof windows and outward-opening windows. The system is installed directly onto the frame using screws, ensuring it remains firmly in place. This makes it a reliable solution for sloping windows.

Because the Fixed Pleated Blind fits tightly against the frame, an insulating air layer is created between the fabric and the glass. This helps reduce solar heat gain and keeps the attic cooler for longer.

Thanks to the integrated operating bar, you can easily control how much daylight enters the room, allowing you to achieve the perfect balance between natural light, privacy and heat protection.

Supplente: window blind and fly screen in one system

Would you like to keep heat out while still being able to ventilate without insects entering your home? Then the Supplente is an ideal solution.

The Supplente combines a pleated blind with a pleated fly screen in one integrated system. During the day, you use the blind to reduce sunlight and heat. In the evening, when temperatures drop, you can open the roof window and use the fly screen to enjoy fresh air without mosquitoes or other insects entering your home.

Like the Fixed Pleated Blind, the Supplente is securely mounted onto the window frame. This ensures it remains firmly in place, even on sloping roof windows.

Its integrated operating bar allows you to control both the blind and the fly screen with ease, giving you complete control over light, ventilation and privacy.

Which pleated fabric provides the best heat protection?

KeJe offers four fabric categories for pleated blinds: decorative (A fabric), translucent privacy (B fabric), blackout (C fabric) and DUO fabric (D fabric). The fabric you choose affects not only privacy and light control, but also the insulating and heat-resistant properties of your blind. The denser the fabric, the better it blocks solar heat.

C fabric: maximum heat protection and blackout

If your priority is keeping heat outside, blackout C fabric is the best choice. It blocks almost all incoming light and offers excellent insulation. This prevents solar heat from entering the room, making it especially suitable for attic bedrooms where darkness and comfortable temperatures are important.

DUO fabric: heat protection with natural daylight

If you'd like to enjoy natural daylight while reducing heat, DUO fabric is an excellent option. It offers strong insulating performance while allowing more daylight into the room than blackout fabric. This makes it ideal for attics used as home offices, hobby rooms or additional living spaces.

Keep your attic cool with the right roof window blinds

Roof windows provide plenty of natural daylight, but they can also cause attic temperatures to rise quickly. With blinds specifically designed for roof windows, you can reduce heat build-up and enjoy a more comfortable living space throughout the summer.

Whether you choose the Fixed Pleated Blind or the Supplente, both solutions fit tightly against the window frame and are specifically designed for sloping roof windows. They provide greater comfort, improved indoor temperatures and a stylish finish.

Curious which solution is best for your roof window? Explore the KeJe roof window blinds collection or find a KeJe dealer near you. Together you'll find the perfect solution for your home.