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17.11.2025

Roller Shutters down in winter: Do Roller Shutters protect against the cold?

House in the snow with Roller Shutters from ROMA as protection against the cold

Roller Shutters down in winter - this simple measure can make a big difference. Closing your Roller Shutters at night not only saves heating costs, but also improves the indoor climate. But what is the real benefit? And do Roller Shutters protect against the cold? In this guide, you'll find out why it pays to consciously use roller shutters even in the cold season and how you can improve your energy balance with well thought-out protection against the cold.

Would you like some advice? Contact a ROMA Distributor near you.

Roller Shutters down in winter: The most important things in a nutshell

  • Closed Roller Shutters form an additional insulating layer in front of the window.

  • Heat loss via the window surface can be reduced by up to 30 % with closed Roller Shutters.

  • Heating costs can be significantly reduced by using closed Roller Shutters.

  • Blinds also offer limited protection against the cold, but are less effective than Roller Shutters.

  • Automated control of electric Roller Shutters and Smart Home systems increases energy efficiency.

  • The combined use of Roller Shutters and modern window glazing is particularly useful.

Why should you close the Roller Shutters in winter?

Windows are considered a weak point in the building envelope - this is where a particularly large amount of heat is lost. As soon as the sun goes down, outside temperatures drop rapidly. Lowering your Roller Shutters in winter prevents warm indoor air from escaping unhindered to the outside. A closed Roller Shutters acts like a barrier against cold, wind and even sound. Studies show: If the Roller Shutters are closed at night, heat loss can be reduced by up to 30 %. Roller Shutters thus actively help to reduce your energy costs by protecting against the cold.

Which types of roller shutters offer the best protection against the cold?

Basically, the better the Roller Shutters insulate, the greater the energy-saving effect. Foamed Roller Shutter Profiles, such as those offered by ROMA, are particularly effective. These have integrated insulation and are specially designed to meet energy requirements.

Front-Mounted Roller Shutters in particular have very good insulation values in winter, as they are mounted outside the window reveal and thus avoid cold bridges. Modern Top-Mounted Roller Shutters have excellent thermal insulation properties as they are installed as a unit with the window. In combination with modern window glazing, the effect is further enhanced.

Protection against the cold thanks to different types of roller shutters

Roller shutter type
Insulating effect
Top-Mounted Roller Shutters: Mounted on the window, forms a unit with it
Outstanding
Front-Mounted Roller Shutters: Installation in front of the reveal, no thermal bridges
high
Angled Roller Shutters: Suitable for special window shapes
medium

How does Roller Shutters protect against the cold?

A closed Roller Shutters reduces the heat exchange between the interior and exterior climate. The layer of air between the window and Roller Shutters acts like an insulating cushion. The so-called air cushion effect between the window and roller shutter curtain thus significantly reduces heat loss. At the same time, the Roller Shutters prevent cold air from hitting the window pane directly, which improves the so-called U-value of the window. This value determines how high the thermal insulation of a window is - a low value stands for high thermal insulation.

Advantages at a glance

  • Thermal insulation and energy savings

  • Wind and weather protection

  • Privacy and sound insulation

  • Burglar resistance

  • Flexible control - manually, electrically or via Smart Home

ROMA Roller Shutters closed

Automation: save heating costs with smart control

Modern Smart Home systems make it possible to close Roller Shutters at night and open them again automatically in the morning. This not only increases convenience, but also exploits the full energy-saving potential. ROMA offers smart solutions that are compatible with established systems such as Somfy TaHoma, Loxone, elero or KNX.

Another advantage: sensors can take weather data into account and automatically adjust the Roller Shutters depending on the position of the sun or the outside temperature. This not only reduces heat loss, but also improves the indoor climate. A solar drive for Roller Shutters can also be integrated as part of an energy-efficient window refurbishment to maximize energy efficiency.

Are blinds good protection against the cold?

Blinds only offer limitedprotection against the cold. Although external blinds in combination with modern windows can reduce heat exchange somewhat, they do not achieve the insulating properties of closed Roller Shutters. If temperatures drop significantly, blinds should therefore be supplemented by other measures - such as internal curtains. Internal blinds cannot keep out the cold.

Saving energy made easy: 4 tips for everyday life

  • Roller Shutters down as soon as it gets dark in winter

  • Open in the morning when the sun is shining to use passive solar heat

  • Automate Roller Shutters to time opening and closing perfectly

  • Combine Roller Shutters with modern windows with thermal insulation glazing for maximum effect

Roller Shutters down in winter? It's worth it!

Roller Shutters make an active contribution to thermal insulation in winter, reduce heating costs and increase living comfort. With ROMA Roller Shutters, you can rely on tested quality, durable materials and smart technology - for more energy efficiency in your home.

Get advice from a ROMA specialist partner and find the right system for your home.

Frequently asked questions (FAQ) about Roller Shutters as protection against the cold

What's the point of leaving Roller Shutters down in winter?

A closed Roller Shutters reduces heat loss at the window by up to 30 %, improves insulation and enables heating costs to be saved. It also offers protection from wind, weather and unwanted glances.

Are blinds good protection against the cold in winter?

Venetian blinds only offer limited protection against the cold. The protection against the cold is less than that of Roller Shutters, as they insulate less. They are more suitable as a supplement, but not as the sole measure.

When should you close the Roller Shutters?

Roller Shutters should be closedas soon as it gets dark or the sun goes down. This is when outside temperatures are at their lowest and insulation is particularly important.

Can automated Roller Shutters help save energy?

Yes, time or sensor-based control - for example with ROMA Smart Home solutions - can beused to close Roller Shutters when it makes sense from an energy point of view. This significantly increases energy efficiency.

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