Why Do My Fence Panels Keep Blowing Out In The Wind

Fence panels blow out because solid panels catch wind, fixings are weak or the posts had already failed. Plex Group explains the causes and the proper fix across Worcestershire and Gloucestershire.

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Solid Panels Act as a Sail

A closeboard or lap panel presents an unbroken surface to the wind with nowhere for air to pass through. On a standard 1.8m fence that is over three square metres of sail area per panel, and in a gale the force pushing on it is considerable. All of that load goes into the fixings and then into the posts. Hit and miss and slatted panels solve the problem at source by leaving a deliberate gap for air to pass through, which is why they hold up on exposed boundaries around Pershore and the open ground outside Bourton-on-the-Water where solid panels come down winter after winter.

Panels Fixed With Insufficient Support

The second failure point is how the panel is held. Panels nailed to thin battens with a handful of galvanised nails rely entirely on those nails resisting pull out, and timber battens split along the grain exactly where the nails sit. Once a batten splits at the top, the panel starts working in the wind, the movement loosens everything else, and the next gust takes it out. Panels hung on proper rails or in the rebate of a slotted post, fixed with fence clips into sound timber, spread the load across the whole edge of the panel rather than concentrating it on four nails.

The Posts Were Already Compromised

In most storm damage we attend, the wind simply finished something that was already failing. Timber rots at ground level where the post sits between wet soil and air, so a post can look sound at eye height while having almost no section left at the base. Concrete poured as a collar without haunching above ground holds water against that exact point and accelerates it. Posts set too shallow, or bedded into soil with no concrete at all, never had the resistance to begin with. If your panels keep blowing out in the same place, the post beside them is the thing to check before you buy another panel.

Local Ground and Exposure

Ground conditions decide how quickly a post loses its grip. On the clay of the Vale of Evesham and the low ground around Stratford-upon-Avon, the soil swells in winter and shrinks back in summer, and that cycle works concrete footings loose over ten to fifteen years even where the fence was installed correctly. On the thin limestone brash of the higher ground, post holes often bottom out on rock before they reach proper depth, so the post ends up shallower than it should be. Add an exposed position on open ground, or a gap between buildings that funnels wind along a boundary, and a fence that would stand for twenty years elsewhere comes down in five.

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Signs Your Fence Will Not Survive the Next Storm

  • Panels that rattle or visibly flex in moderate wind
  • Posts that move at the top when pushed firmly by hand
  • Nails or clips pulling out of the battens, or battens split around the fixings
  • A concrete collar that has cracked or lifted proud of the ground
  • Timber at the base of the post that gives way when probed with a screwdriver
  • The same panel blowing out repeatedly while the rest of the run stays put
Can I just put the blown out panel back in?

Rarely. A panel only blows out when something lets go, which is usually the fixings or the post rather than the panel itself. Refitting the same panel with the same fixings into the same post puts it back exactly as it was for the next storm.

Are hit and miss fence panels better in wind?

Hit and miss and slatted panels have deliberate gaps that let air pass through, which dramatically reduces the load reaching the posts. On exposed gardens and along open field boundaries they are the sensible specification, and they give privacy from normal viewing angles.

How deep should fence posts be set?

A post should be set at least a third of the fence height into the ground, so a 1.8m fence needs a minimum of 600mm of post below ground. On exposed or clay sites we go deeper, and the concrete should be haunched above ground level and sloped so water runs away from the timber.

Do you repair storm damaged fencing across Worcestershire and Warwickshire?

Yes. Plex Group repairs and installs fencing across Worcestershire, Gloucestershire, Oxfordshire, and Warwickshire, including Evesham, Pershore, Stratford-upon-Avon, Kingham, Bourton-on-the-Water, and Winchcombe.

How Plex Group Fixes Fencing That Keeps Blowing Out

We start with a full site assessment, checking every post at ground level for rot, testing the footings for movement, and looking at how exposed the run actually is. Where posts have failed we dig out the old footing entirely and set new posts to at least a third of the fence height, with concrete haunched above ground level and sloped away so water runs off rather than sitting against the timber. On exposed runs we specify concrete posts or steel post inserts, which take the wind load indefinitely and remove post rot from the equation. Panels are hung on proper rails and clips rather than a few nails into thin battens, with gravel boards keeping the bottom rail clear of the ground. Where a garden takes a real hammering we recommend hit and miss or slatted panels with a deliberate gap, which let wind pass through instead of resisting it. Plex Group installs and repairs fencing across Worcestershire, Gloucestershire, Oxfordshire, and Warwickshire.

Conclusion

Panels that keep blowing out are pointing at a weak link somewhere in the run, and once that link is identified the fix is permanent. Plex Group repairs and installs fencing across Worcestershire, Gloucestershire, and Warwickshire. Get in touch to arrange an assessment.

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