The wind speed plays a decisive role in the safe operation and durability of External Venetian Blinds . Even though External Venetian Blinds are effective sun shading systems and visually appealing design elements of modern façades, their stability can sometimes reach its limits in strong winds .
For planning, installation and operation, it is therefore important to know the respective wind load limits and to plan appropriate protective measures - such as high-quality ROMA External Venetian Blinds with tested wind resistance.
Wind speed for External Venetian Blinds: the most important facts in brief
What does critical wind speed mean for External Venetian Blinds?
External Venetian Blinds wind speed in km/h: a comparison of figures
At what wind speed should External Venetian Blinds be raised?
Automatic protection: wind monitors and control solutions
Tips for building owners and planners
ROMA External Venetian Blinds: Maximum wind speed at a glance
ROMA External Venetian Blinds: Discover different slats
External Venetian Blinds and wind speed: Safety starts with good planning
Frequently asked questions (FAQ) about the wind speed of External Venetian Blinds
From approx. 39 km/h (wind force 6): External Venetian Blinds with cable guide better raised
From approx. 50 km/h (wind force 7): only robust systems with rail guide recommended
From 62 km/h (wind force 8 and above): Always retract External Venetian Blinds
Automatic wind monitors increase safety - even when you are away
The permissible wind speed varies depending on the system and installation situation
The wind speed indicates how much air is moving - measured in kilometers per hour (km/h) or meters per second (m/s). It is particularly relevant for Venetian blinds because
strong gusts of wind deform the external venetian blind slats,
damage the guide systems or even
even tear entire systems out of their anchoring.
Professionally installed systems are tested in accordance with DIN EN 13659 and can withstand different loads depending on the design.
To help you assess the wind speed at which External Venetian Blinds should be raised, it is helpful to take a look at the common wind speeds and their effects on different systems.
The following overview shows the values above which caution is required - especially for systems with cable guides or in wind-exposed locations.
This information is for guidance only. The actual load capacity always depends on local structural conditions.
Many owners ask themselves the question: At what wind speed should External Venetian Blinds be raised? The answer is:
At wind force 6 (from approx. 39 km/h): manual systems with cord guidance are better retracted
From wind speeds of 40-50 km/h: for automated systems with wind monitors, set the limit value from the recommended use.
In the event of strong winds due to thunderstorms or foehn winds: always raise the system
If you leave your system down despite the warning, you risk damage - and possibly the loss of warranty claims.
Modern External Venetian Blinds can be integrated into the planning of Smart Home systems with wind monitors. Wind monitors are installed at the windiest point and close to the affected External Venetian Blinds. These continuously measure the wind speed, detect gusts of wind and automatically retract the External Venetian Blinds if the limit values are exceeded.
Advantages of automatic External Venetian Blinds:
No manual intervention required
Protection during absence
Individual setting of the trigger values
Can be integrated into weather or home automation systems
Anyone planning External Venetian Blinds should consider the wind load zone and building location. Higher wind loads are to be expected, particularly on west or north-facing façades, on slopes or in detached buildings.
For wind-exposed locations, we recommend External Venetian Blinds with rail guides instead of cable guides, the use of a wind monitor as standard and professional installation by trained specialist partners. Our ROMA specialist companies will support you in selecting the right system and ensure safe implementation.
The maximum wind speed for ROMA External Venetian Blinds depends on various factors - including size, slat, type of guide (cord or rail), installation situation and building height.
External Venetian Blinds with cord guide: up to approx. 38 km/h (wind force 5-6)
External Venetian Blinds with rail guide: up to 60 km/h (wind force 7) and more
The more exposed the location, the more robust the system should be. Planners are advised to consult the ROMA operating and care instructions for External Venetian Blinds with recommendations for use and wind load tables.
Whether straight or curved - ROMA has its own large selection of external venetian blind slats. Each one impresses with sophisticated technology, high functionality and a modern look.
Wind speed is an important safety factor when operating External Venetian Blinds. If you want to protect your system and façade, you should familiarize yourself with the limit values and technical solutions. In combination with wind monitors and professional planning, ROMA External Venetian Blinds offer the necessary safety - even in stormy weather. ROMA specialist partners will advise you and set up your wind monitor accordingly.
Caution should be exercised with External Venetian Blinds with cord guide from a wind speed of approx. 39 km/h (wind force 6). In this range, it is recommended to raise the External Venetian Blinds to prevent damage. Automated systems can be programmed to react automatically from a wind speed of approx. 40 km/h.
If the External Venetian Blinds remain down at high wind speeds, this can lead to deformation of the slats, damage to the guide or, in the worst case, to the system being torn out. In addition, gross negligence can lead to the loss of warranty claims.
A wind monitor continuously measures the current wind speed and sends a signal to the control unit if a set limit value is exceeded. The External Venetian Blinds are then raised automatically. The systems can be individually configured and also integrated into ROMA Smart Home solutions.