Which sun protection slats are the right ones?
Sun protection slats: Which design is the right one?
Sun protection slats allow you to control daylight, glare, and heat gain in a targeted manner—depending on whether you want to reduce the amount of light entering interior rooms or limit solar radiation on the building envelope. The right choice not only affects the appearance of the facade, but also comfort and energy efficiency (e.g., less heating in summer and lower cooling requirements).
To ensure that the sun protection slats are suitable for the building and its requirements, the following points should be taken into account:
To ensure the sun shading louvers match the building and the requirements, the following points should be considered:
Material
The material determines the visual effect, durability, and maintenance requirements. Aluminum sun protection slats are available in various widths, shapes (elliptical, rhombus, or rectangular), and colors. Special designs in expanded metal, perforated sheet metal, or glass are also possible.
Orientation
- Horizontal: good when the sun is high
- Vertical: good when the sun is low (morning/evening)
- Inclined / cantilevered: stronger protection from above, adds an architectural accent
The direction of the sun and the window areas are decisive factors.
Type of movement
- Fixed: simple, low maintenance
- Rotatable: flexible light/glare control
- Rotatable + movable (gathering/retracting): maximum flexibility (view/light as required)
Drive
- The drive determines ease of use and automation.
- Manual (simple, inexpensive)
- Motorized (more convenient, sensors/automation possible – ideal for large or hard-to-reach systems)