Aug. 04, 2025
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Devising and implementing rigorous anti climb precautions can be enormously challenging. Context and specific requirements must always be considered as there is no ‘one size fits all’ anti climb solution that will be effective in all situations. For example, the need to prevent children from climbing fencing along a busy railway line is a lot different from the need to deter potential intruders from scaling walls and fences around a ministry of defence property.
It’s necessary to be aware of the variety of anti climb devices available today, how they work and where they are most effectively employed. In many situations it’s vitally important that anti climb precautions are entirely non-aggressive in both functionality and appearance.
To understand the differences between what are considered aggressive and non-aggressive anti climb devices it’s useful to examine how various techniques work.
The use of broken glass, set into concrete along the tops of perimeter walls, was once a very common form of anti climb barrier. This is clearly an aggressive barrier that can potentially cause harm to someone who attempts to scale the wall. It’s also a very ineffective anti climb precaution as it can be easily overcome by smashing the glass with a rock or hammer, or laying a blanket over the barrier.
Another important consideration is appearance. While the aggressive, visual aspect of broken glass along the top of a wall will act as a deterrent it also looks very ugly and doesn’t enhance the aesthetic appearance of a property. Although there are many old walls in the UK that are still topped with broken glass it is now illegal to install broken glass as an anti climb barrier.
Barbed wire is another form of anti climb barrier that was once commonly used. It’s clearly aggressive, both in it’s appearance and behaviour which means that it can only be used at heights above 2.4 metres on walls and fences which border areas to which the public have access and this form of installation is likely to require planning permission. Another important consideration is that barbed wire can be easily overcome by intruders equipped with the right tools.
Barbed tape, or razor tape, is a highly aggressive form of anti climb device. Planning permission is required to use this type of barrier which is not suitable for most domestic applications. It is most commonly used in high security applications such as military bases, around prisons and sometimes around commercial goods yards.
A variety of anti climb spike systems are available today, some made from plastic and others from metal. Metal anti climb spike systems such as Razor Spike and Razor Point are purposely designed for installations where aggressive anti climb barriers are appropriate and important such as military establishments, ministry of defence properties, embassies and supermarket goods depots.
The visual appearance of these metal anti climb spikes is purposely aggressive and forbidding. When installed around a property perimeter they immediately create a fortress-style barrier which acts as a strong visual deterrent.
Anti climb spinners create an unstable topping for gates, walls and fences which effectively prevents climbing. Various forms of anti climb spinner systems are available today including the rotating anti climb device shown below, which is non-aggressive in it’s behaviour but presents what appears to be a formidable, visually aggressive-looking barrier.
Another highly effective yet totally non-aggressive anti climb barrier is our Roller Barrier system which uses freely rotating, robust, polycarbonate cups that are too big to be gripped by even the largest human hands. Importantly, Roller Barrier is not only non-aggressive in its functionality it’s also entirely non-aggressive in its appearance, as shown in the image below. This is a vitally important attribute in many installations, as covered later in this article.
Anti climb paint is a form of non-drying, greasy paint that remains slippery. It’s important never to use this substance below a height of at least 2 metres and wherever it’s used appropriate warning signs should be presented. Anti climb paint is entirely non-aggressive in both its functionality and appearance. While a would-be intruder might mess up their clothes by coming into contact with the substance, they will not cause themselves any harm.
Whatever form of anti climb barrier is used it’s a legal requirement to warn people, unless the installation is entirely domestic and members of the public will not come into contact with it. Presenting prominent warning signs demonstrates that security is taken seriously and will therefore act as a deterrent to some would-be intruders and boundary fence or wall climbers. Warning signs specifically for anti climb barriers, anti climb spikes and anti climb paint are very effective. Importantly, anti climb warning signage is entirely non-aggressive.
Anti Climb Warning Signs
The Occupiers’ Liability Act provides details of the ‘common duty of care’ that property occupiers owe to all visitors. The common duty of care requires that reasonable steps are taken to ensure the safety of visitors and importantly, an occupier must be prepared for children to be less careful than adults.
The Occupiers’ Liability Act is all about the duty of care that occupiers have toward people other than formal visitors. This refers to people who have not been invited or are not permitted to be on the premises, such as intruders. It’s important to note that property owners can be liable for injury caused to unwelcome intruders by their anti climb precautions. This is one of the key reasons why many establishments are now using entirely non-aggressive anti climb protection.
It is worth noting that gates, walls and fences are likely to require planning permission or building regulation approval if they adjoin a highway and are more than 1 metre in height or if they are otherwise more than 2 metres in height. And it’s always worthwhile checking with local authorities before installing any anti climb barrier on a boundary that the public can access.
As a general rule, spiked anti climb devices should not be used below a height of 2.2 metres and appropriate warning signs must always be prominently presented. Higher height recommendations may exist in some situations so it’s always a good idea to talk directly with local authorities to ensure compliance before commencing an installation.
As noted, some anti climb barriers are non-aggressive but still present what appears to be an aggressive barrier. This is important as the appearance acts as a climbing deterrent. But there are many situations and circumstances in which an anti climb device or barrier must be non-aggressive in both its functionality and importantly, in its appearance.
A good example is around the perimeter and interior of schools, playgrounds and where children congregate. Anti climb barriers that look aggressive would be inappropriate in these situations as the nasty appearance would potentially make children feel like they are in some sort of prison and possibly cause anxiety in some. Our Roller Barrier system is entirely appropriate for these circumstances as it doesn’t look nasty or aggressive and will therefore not cause any mental distress.
Another important point that’s worth noting is that Roller Barrier is not only an effective gate, wall and fence topper, it’s also a highly effective anti climb device for flat rooftops, shelters and exterior equipment that would naturally attract children who love to climb. For example, the following image shows Roller Barrier installed at a children’s centre where it is safely preventing kids from climbing onto the single storey flat rooftops and importantly, as shown, it’s also protecting exterior fan housings from being climbed on.
Psychiatric treatment centres, hospitals and high security psychiatric care establishments recognise the benefits of Roller Barrier as its appearance doesn’t cause patients to experience anxiety, fear or distress. But it does present a highly effective anti climb barrier which helps prevent patients and inmates from injuring themselves if they attempt any climbing.
Roller Barrier has also been highly effective in the homes of autistic children who need to be kept safe and secure and who might be disturbed by aggressive looking anti climb devices. Roller Barrier’s aesthetic appearance makes it look no more intrusive than regular guttering yet it provides a formidable anti climb barrier that keeps children safe from injury.
The pleasing, non-aggressive aesthetic appearance of Roller Barrier is an important attribute that makes it entirely appropriate for situations where people might find other, aggressive looking forms of anti climb barrier disturbing. Roller Barrier cups can be supplied in a huge range of colours allowing the system to be colour-matched to the building or structure, making it even less obtrusive. It’s a genuinely non-aggressive anti climb device that will not cause physical injury and will not cause anxiety due to the way it looks.
While aggressive anti climb barriers have important roles to play, for example around military or ministry of defence properties, non-aggressive systems are far more suitable for a huge range of applications.
For more Anti-Climbing Spikesinformation, please contact us. We will provide professional answers.
Suggested reading:Roller Barrier is now the anti climb system of choice for use in and around: schools, mental health centres, young offenders institutes, prisons, public buildings, parks and gardens, car parks, railway lines and many more locations. Its favoured because it works, it can’t cause injury, doesn’t cause any mental disturbance, is easily installed and looks great.
Anti climb paint is another form of genuinely non-aggressive anti climb barrier that works. It’s widely deployed to discourage and prevent climbing of walls, posts, poles and drainpipes.
And anti climb warning signs are another form of entirely non-aggressive anti climb precaution that must always be used in conjunction with anti climb barriers and anti climb paint. Prominently presenting warning signage acts as an effective deterrent that discourages some would-be intruders from even attempting to penetrate a property boundary.
If you have any questions regarding how best to implement anti climb precautions remember that we are here to help. Give us a call on and we’ll provide you with free, expert advice.
This message was added on Friday 8th May
Anti climb fence is the preferred choice because of its design, durability, and cost-efficiency. It is ideal for high security fencing from industrial facilities to prisons.
Why is an anti-climb fence so effective?
The primary reason is because of its small mesh openings, it prevents climbing and cutting, ensuring top-notch security.
While there are numerous fencing solutions out there, when a facility needs an impenetrable fence, they often opt for an anti-climb weldmesh, and not without some compelling reasons. If you too happen to be interested in knowing these reasons, you’re at the right place. But first, let us take a quick look at what is meant by an anti climb fence!
The study indicated that for many burglars, tall fences with tops that were difficult to climb over deterred them because escape would be difficult.
Also known as anti-cut fence, an anti-climb fence is essentially a mesh created by a unique weld that offers a visually appealing design complete with exceptional security.
To enable the anti-climb feature, these fences feature a very small mesh opening or aperture. The opening is only 0.5 inches in height which makes it difficult for finger, toes and tools to get a grip. Despite this, as the horizontal opening is 3 inches apart, the fence is almost see through, adding to it’s security appeal and making it CCTV friendly.
Some of the most prominent aspects which make anti-climb meshes highly sought after include –
As mentioned above, the intrinsic design of the weldmesh makes it impossible for an intruder to climb the mesh! But what if they were to use any tools? Well, when metallic tools have to cut thick wires, they need to be big and strong. But as already informed, the vertical opening of 0.5 inches doesn’t allow access to big cutting tools. So, yes! Anti climb security fence ensure impenetrability in the truest sense of the word.
Owing to its closely welded design, anti-climb mesh possesses additional strength. The use of high tensile wire and weld strength as per ASTM standards for manufacturing this fence not only makes the fence rather sturdy but also increases its resistance against any blunt force trauma. This further makes sure that tools like cutters fail when it comes to tampering with this unique fence type.
The use of dual coating – galvanising and powder coating – ensures that anti climb fences are resilient towards wear and tear. This resilience offers them a longer lifespan. What’s more? Thanks to the dual coating protection, these fences are able to withstand a wide range of climatic conditions without suffering any harm. Besides, there simply isn’t any need to clean or maintain this fence regularly, which helps save a lot of time and added effort!
If you want an even higher level of security, and wish to opt for additional measures such as a barbed-wire fence, or wall spikes, or even a CCTV system, you can easily do so, in conjunction with the anti-climb mesh. All you need to do is specify your needs to your dealer or contractor, and take your pick based on their suggestions.
To begin with, the anti-climb mesh is more affordable than concrete barriers. Moreover, they are modular and arrive on the site in sections. Not only does this make it easier for this fence to be installed, but in case of any damage, all you need to do is repair or replace the section and not the entire fence.
While the design of the anti-climb mesh deters intruders, it is often considered aesthetically pleasing due to its clean look. Moreover, it does not impede the visibility of the property.
Anti-climb fences can easily be used in a wide range of places including but not limited to Offices Buildings, Hospitality Industry, Stadiums and Sports Fields, Industrial Facilities, Manufacturing Units, Data Centres, Financial Institutions, Universities, Railways, Warehouse Perimeter, Chemical Plant Etc. Moreover, these are also used in Prisons and Military outfits where a higher level of security is required.
We hope that you are now as convinced about the strength and utility of Anti Climb Security Fences, as we are. If you think you are ready to give your infrastructure project, or your commercial or residential property a strong demarcation solution, do check out A-1 Fence Products for one of the most high-quality and cost-effective Anti-Climb Mesh Fences around!
Anti climb fences are essentially designed to deter intruders from climbing over the fence. Moreover, the intricate design of the fence is reinforced to prevent cutting or being knocked over, which makes these fences true to their name, and extremely efficient in ensuring the security of your property.
Thanks to the use of galvanised steel, which is further powder coated, A-1 Fence’s specialised anti-climb fence – A-1 Kavach virtually requires no maintenance whatsoever. Highly durable and incredibly resistant to damage and corrosion, this fence neither requires frequent cleaning nor repairs.
This can deter criminals from even considering breaking into the property. A durable and tall security fence will be intimidating to potential vandals and thieves. To ensure that fencing is as effective as possible. It is important to make sure that it’s strong and completely unbreakable.
An anti-climb fence is one of the simplest ways to stop unauthorized persons from entering your property. It could be a purpose designed security structure, or an ordinary fence or wall fitted with anti-climb devices such as security spikes or fence spikes.
The anti-climbing device is a part of the fencing panel system, which is mounted on fencing upright. These are basically used at substation fencing, Defense fencing, or any high-security areas where barbed wire is required to secure the required zone/perimeter
For more information, please visit Chain Link Fence.
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