Winter thermal protection at the window combines solar heat gains with reduced heat loss. Both effects can be supported with sun shading: open during the day and, depending on the product, closed at night.
A study by the German Roller Shutter, Sun Shading and Automation Industry Association (IVRSA) shows heating energy savings of up to 30 percent for the building scenarios examined compared with windows without sun shading. Actual performance depends on the building, glazing, sun shading, controls and usage.
WAREMA external venetian blinds let you control incoming light precisely. Adjustable slat angles allow you to direct daylight into your rooms. Automatic functions can control the sun shading according to the time, sensor readings and settings. You can also adjust it manually at any time using the app, even when you are away.
Coordinated light control can make use of daylight while limiting glare.
When the shading is open, sunlight can enter the room through the glazing. The amount of solar heat gain depends in particular on the glazing’s g-value, the window area, orientation and solar irradiance.
WAREMA roller shutters create an additional layer of air between the shutter curtain and the window. Depending on the window, roller shutter, installation and airtightness, this can reduce heat transfer. The effect should be assessed for the specific installation.
Studies show a reduction of up to 37% in heat loss through windows at night for defined installation scenarios. The actual figure depends, among other things, on the window, roller shutter and installation.
The slat angle of external venetian blinds can be adjusted to the position of the sun and the desired use of daylight. In winter, open blinds can allow solar heat gains while helping to direct the light.
Roller shutters provide sun shading, privacy and glare protection. When closed, they can also reduce heat transfer through the window. Their effectiveness depends on the window, roller shutter and installation.
Window awnings reduce solar radiation before it reaches the glazing. Depending on the fabric, they still allow a view outside and let in daylight. They primarily support summer thermal protection.
WAREMA smart home systems can automatically control sun shading based on the time, sensor readings and individual settings. This allows daylight, solar heat gains and shading to be coordinated according to your needs.
From new builds and renovations to windows, doors and outdoor areas: Discover planning aids, guides and inspiration on sun shading, insect and pollen protection, as well as information on comfort, security and energy efficiency.
The WAREMA brand stands for high-quality sun shading solutions that adapt flexibly to your life. As a leading European manufacturer, the family-owned company develops individual solutions for windows, patios, balconies and outdoor areas. The portfolio ranges from external venetian blinds and roller shutters to awnings and patio roofs, as well as insect screens and intelligent sun shading control systems. In cooperation with qualified specialist companies, all solutions are carefully planned and professionally installed on site. You benefit from long-lasting quality, reliable service and enhanced comfort – for a harmonious interplay of light, shade and living space, today and in the future.