Wind-resistant external venetian blinds are designed to remain in use up to defined wind speeds. The permissible limit depends on the system size, guidance, slat type, installation position and local wind exposure.
Wind-resistant external venetian blinds combine coordinated guidance, slats, end rails and fixing details. These elements reduce movement and help the system remain operational within its specified wind limit.
Relevant planning factors:
- Unit width and height
- Guide rails and fixing arrangement
- Slat geometry and end rail
- Installation position and façade exposure
- Configured wind sensor and retraction threshold
Selected designs may be rated for high wind loads under defined conditions. The permitted operating limit must be taken from the product documentation for the planned system.
Wind-resistant means that the external venetian blind is designed for operation up to a defined wind speed when installed and configured as specified.
The applicable limit depends on:
- System width and height
- Guidance and fixing
- Installation location and wind exposure
- Slat design and end rail
Guide rails and installation position
Stable lateral guidance and a protected installation position can reduce movement in gusts. The effect depends on unit size, fixing and façade exposure; installation in a reveal is not automatically suitable for every project.
Slat geometries
Slat shape and stiffness influence system behaviour in wind. The Windra flat slat is designed for increased wind stability when used in a compatible system.
The video shows how WAREMA tests external venetian blinds under wind loads and which components influence their behaviour in gusts.
Raise external venetian blinds before the specified wind limit is exceeded. With a compatible smart control system , a wind sensor can trigger automatic retraction. The required threshold depends on the product, size, guidance, installation location and local exposure. Selected wind-resistant external venetian blinds may be approved for higher wind speeds under defined conditions. A WAREMA Partner can assess the project and set the control parameters.
The permitted wind speed is system-specific. It depends on unit dimensions, guidance, fixing, slat type and installation position. The Windra flat slat can be used in selected systems designed for increased wind stability. The applicable limit is stated in the product documentation.
You can view products and operating options at Sunlight Experience Centres or contact a WAREMA specialised retailer. The retailer can assess the installation, take measurements, prepare a quotation and arrange professional installation and service.
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.