When installing security fencing in open or exposed locations, wind load is an important factor to consider. Areas such as coastal sites, hilltops and large open spaces experience stronger winds that can exert pressure on fencing structures. Choosing the right fencing type and installation method ensures durability, prevents damage and maintains security over time.
This guide explains the impact of wind load on fencing and provides key considerations to help you choose the best fencing solution for high-wind environments.
What is Wind Load and Why Does it Matter?
Wind load refers to the force exerted by wind on a structure. The greater the wind speed and exposure, the higher the force applied to fencing. If a fence is not designed to withstand these forces, it can bend, break or even collapse over time.
Several factors influence wind load on fencing:
Wind speed and exposure – Coastal and open areas typically experience higher wind loads.
Fence design – Solid panels catch more wind, while mesh fencing allows wind to pass through.
Post strength and depth – Heavier-duty posts and deeper foundations improve stability.
Installation method – Proper fixing and spacing between posts reduce stress on the structure.
Best Fencing Options for Windy Locations
Certain fencing types perform better in high-wind environments than others. Below are the most suitable options:
Twin Wire and V Mesh Fencing
– Wind resistance: High – Mesh panels allow wind to pass through, reducing wind pressure.
– Best for: Schools, commercial properties and industrial sites in windy locations.
– Additional considerations: Choosing thicker wires (e.g., 868 Twin Wire) improves durability against extreme weather.
Palisade Fencing
- Wind resistance: Moderate – Gaps between pales reduce wind resistance compared to solid fencing.
- Best for: High-security sites where strength and durability are required.
– Additional considerations: Heavier-duty RSJ or box-section posts improve stability.
Solid Panel Fencing
- Wind resistance: Low – Solid panels act as wind barriers, increasing stress on posts.
- Best for: Noise reduction and privacy where wind exposure is minimal.
- Additional considerations: Not recommended for very windy areas unless reinforced with stronger posts and deeper foundations.
Key Installation Considerations for Windy Locations
Fence Height and Mesh Type
- Opting for 868 Twin Wire Mesh provides additional strength and resistance in high-wind areas.
- Taller fences may require additional support to counteract wind forces.
Fence Bracing and Support
- Using additional bracing and support struts can improve stability in extreme conditions.
- CLA Security Fencing Systems offers fencing kits designed for secure, long-lasting installations.
Secure Fixings
- Heavy-duty clips and anti-tamper fixings help keep mesh panels secure in high winds.
- Ensuring all fixings are correctly installed prevents weak points in the structure.
Ground Conditions and Foundations
- Installing fences in hard or rocky ground may require specialist fixing methods.
- CLA Security Fencing Systems provides guidance on the best installation techniques for different site conditions.
Conclusion
Choosing the right fencing for exposed locations is crucial to ensuring long-term performance and security. Mesh fencing, such as Twin Wire or V Mesh, is typically the best option for high-wind areas due to its wind permeability. Palisade fencing offers a balance between security and wind resistance, while solid panel fencing requires additional reinforcement.
For more information on windload, there are some online resources here:
SkyCiv Wind Load Calculator
If you’re unsure which fencing system suits your site, CLA Security Fencing Systems offers expert guidance and high-quality solutions designed to withstand the elements. Contact us today to discuss your project needs.
