What is the wind resistance of adjustable sunshades?
What is the wind resistance of BSOs?
Wind resistance tests were carried out by the Civil Engineering Center (Centrum stavebniho inenyrstvi, as) in Zlin in accordance with SN EN 13659.
Wind resistance for cable guidance
Table for external venetian blind Z90 / Z70 / C65 / C80 / CFlexi / S65 / S90
Aluminum cable hung on the window or on the window sill.
Wind resistance by a BSO with slides as a guide
Slides fixed in the board or hung on the facade
Cube, Round and Freestanding Chest
Class 3, 4 for all sizes.
TITAN 90
Class 6 for all dimensions.
What is the standard for the wind resistance of a brise soleil?
In Europe, the standard that governs this is the EN 13659 :2015 standard which concerns external shutters and sunshades. The EN 13659:2015 standard defines the performance and safety criteria for exterior shutters and sunshades.
It specifies requirements for thermal performance, wind resistance, burglary resistance, safety in use, durability in operation, and behavior in the event of fire.
For wind resistance in particular, products are rated from 0 to 6 , where 0 is the lowest and 6 the highest in terms of resistance.
The class is determined by tests carried out in specialized laboratories. For external venetian blinds, we will seek to obtain a fairly high wind resistance class, because these are products that are often used outdoors and must be resistant to bad weather.
Here is a simplified version of this standard:
| Class | Approximate wind pressure | Application example |
|---|---|---|
| 0 | < 20 km/h | Interior, highly protected areas |
| 1 | 20 - 39 km/h | Low wind areas, sheltered areas |
| 2 | 40 - 59 km/h | Moderate wind areas, suburbs |
| 3 | 60 - 79 km/h | Stronger wind areas, coastal areas |
| 4 | 80 - 99 km/h | Windy areas, coastal areas with strong winds |
| 5 | 100 - 119 km/h | Areas with very strong winds, mountains |
| 6 | 120 km/h and more | Areas with extreme winds, high altitude mountains |
Frequently asked questions about sunshades and wind
1. What is an external venetian blind (BSO)?
A venetian blind is a type of external solar protection made up of tilting slats. It allows to control the amount of incoming light while preserving the view to the outside.
2. Are external venetian blinds windproof?
Yes, BSOs are designed to withstand certain wind forces, according to EN 13659:2015. However, their resistance depends on their wind resistance class.
3. How is the wind resistance of a BSO classified?
The wind resistance of a BSOis classified from 0 (low resistance) to 6 (exceptional resistance), according to standard EN 13659:2015.
4. What is the effect of wind on a BSO?
Too strong a wind can damage a BSO, in particular by making it vibrate or deforming it. This is why it is important to choose a BSO adapted to the installation area.
5. Can BSOs be used in windy weather?
Yes, but it is recommended to close them or put them in a safe position in strong winds to avoid damage.
6. How to choose a BSO according to its wind resistance?
It is first necessary to evaluate the climatic conditions of the place where it will be installed. Then choose a BSO with an appropriate wind resistance class.
7. Is a higher class BSO always better?
Not necessarily. A higher class BSO will be more wind resistant, but it can also be more expensive. The important thing is to choose one that suits your specific needs.
8. How to check the wind resistance class of a BSO?
The wind resistance class should be indicated by the manufacturer. If not, don't hesitate to ask him.
9. Can BSOs be damaged by the wind?
Yes, too much wind can damage your awning, especially if it has a lower wind resistance class than that required for the installation area.
10. What should I do if my BSO is damaged by the wind?
It is recommended that you contact the manufacturer or a professional to assess the damage and make any necessary repairs.
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