Procter Architects Guide to Fence
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Transcript of Procter Architects Guide to Fence
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The Architects
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FencingFirst Choice Solutions for Architects, Specifiers & Contractors
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Fencing serves a variety of purposes, including marking the boundary of a property,
providing a feature 'frame' around a property, preventing intruders from entering and, in
some circumstances, ensuring that persons cannot leave the premises without
authorisation. In all cases, however, fencing is readily visible, hence there is a need to
consider aesthetics as much as other requirements. While there is sometimes a trade-
off between aesthetics, security and durability, fencing that has been carefully designed
and specified can enhance the aesthetics and provide the necessary security and
durability.
Almost all premises will benefit from fencing, including individual and shared residential
properties, commercial premises, retail parks, schools, hospitals, sports grounds and
playgrounds. Clearly the needs will be different from one project to the next, so it is
strongly recommended that each project is discussed with a reputable supplier that
offers the full range of options to ensure that the optimum type is chosen and the
detailed features are specified correctly.
Types of FencingArchitects have a broad choice of fencing types from which to choose, ranging from the utilitarian to the ornate.
Selecting the optimum type for a particular project is sometimes straightforward, but often the choice is not clear cut.
The following descriptions will aid the decision-making process, but architects are welcome to contact ProcterFencing Systems and arrange a site meeting at which the options for standard and customised products can be
discussed in more detail, taking into account the project requirements. In addition, there are dozens of images
available on the gallerysection of the website at www.fencing-systems.co.uk
Chain linkfencing has been popular for decades due to its low cost and versatility; it is available in a range of
strengths and finishes - including galvanised and plastic coated options - and is easily adapted to uneven ground. In
addition, it can be mounted on steel or concrete posts with or without additional security features such as extensions
for barbed wire. However, chain link fencing is generally considered to be utilitarian and unattractive, hence it is really
only suitable for low-security applications where boundary demarcation is the main purpose.
Palisade fencing has been widely used since the 1980s; it typically takes around twice as long to cut through as
chain link, though climb-resistance is seldom much better. Different thicknesses and profiles are available, and
polyester powder coatings on top of galvanising can provide an attractive, long-lasting finish. Palisade is available
with the ends of the pales formed into a variety of shapes, from round-topped to a single point or splayed multi-point
forms. Overall security is only marginally improved compared with chain link; removal of the pales on standard
palisade can be worryingly easy, though high-security versions are available.
Railings, sometimes referred to as vertical bar fencing, are similar in concept to palisade fencing but less visually
obtrusive due to their less industrial appearance. There is normally a choice of top finials for the vertical rails, with
decorative heads making the fencing highly ornamental. For a contemporary appearance, square-section pales can be
set at 45 degrees to give an aesthetically attractive yet robust and secure barrier. A more traditional appearance is
provided by bow top railings, which can be hooped or hooped and overlapped/interlocked (park style).
Purchase and installation costs, however, tend to be slightly higher for railings than for comparable palisade fencing
due to the higher manufacturing cost, while the level of security is similar or better than that provided by palisade
fencing.
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One advantage with railings is that there is no limit to the decorative options and Procter Fencing Systems can work
with architects to express their creativity in the design of railings that also achieve the required security level.
If railings are installed between masonry pillars, or such pillars are used for mounting gates, Procter Caststone offers
a range of pier caps and spheres in standard and bespoke sizes and colours.
Welded wire mesh (weldmesh) panels provide a more secure type of fencing in a variety of designs and a choice
of finishes. Different mesh aperture sizes and wire diameters are available to suit the security and aesthetic
requirements, and profiled panels benefit from higher rigidity. Mesh panel fencing is normally galvanised to provide a
long-lasting finish, and polyester powder coating can be used on top of the galvanising to add colour.As well as a
range of standard RAL colours, mesh panels and posts can also be finished in the architect's choice of colour(s).
Welded mesh panels takes many times longer to cut through than most alternatives and can be significantly harder to
scale due to the lack of handholds and footholds presented by the small mesh sizes. Although the top of the
weldmesh panel can provide only limited anti-climb features (a short vertical wire), toppings can be mounted on the
supporting posts to increase security. High-security mesh panel fencing usually offers the highest level of security,
especially if used in conjunction with complementary security measures.
Timber fencing is manufactured in a wide variety of standard designs or to the architect's own design - in which
case appearance and security can be tailored. Close board timber fencing is probably the most commonly used type
where boundary demarcation and privacy are required, or timber knee rail is popular as a low-cost means of marking
boundaries or discouraging pedestrians from straying onto roadways. Log walling is a further option, with the height
range of 500mm to 3000mm making this type very versatile for applications such as schools, play areas and parks.
Acoustic fencing features solid timber boards, 25mm thick, that are fixed to timber rails and connected to
galvanised steel posts. This design ensures that there are no sound gaps, hence noise attenuation is assured.
Gates and BarriersWhenever a perimeter fence is installed there needs to be at least one access point for vehicles and/or pedestrians. If
security is one of the reasons for installing fencing then it is important to ensure that the gates' design and
specification provides the same level of security as the fencing. While the size will depend on the type of access
required (individuals, groups of people, or single or multiple vehicles), it is best practice to keep the access points as
small in size and number as reasonably possible to avoid compromising security. Whatever type of gate or access is
used, care must be taken to ensure that it is not vulnerable in comparison with the remainder of the perimeter
security. For example, gates should be located where they are clearly visible.
Hinged and sliding gates, both manually operated and powered, are usually available from the fencing supplier to
complement the specified type and design of fencing. For schools or commercial properties, a crest, logo or name can
be incorporated within the design. Prestigious residential developments can benefit from ornate gates featuring
traditional or contemporary design elements - yet these can also provide security.
Where sliding gates are preferred, perhaps due to limited space being available to accommodate open hinged gates,
there is a choice of tracked and cantilevered gates. Sliding gates can therefore suit very wide entrances - up to 28m
for double-leaf tracked gates or 15m for double-leaf cantilevered gates.
Depending on the project requirements, it may also be appropriate to install barriers, either of the swinging or lifting
type, which can be manually operated, powered or automatic.
Gates and barriers - as well as bollards and other steelwork - can be designed and manufactured to match the
fencing, thereby presenting a unified and visually pleasing overall appearance.
When considering gates and barriers, remember that the question of access controls should be addressed at thesame time (see following page).
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Complementary Security MeasuresAccess control is vital in order to keep unwanted visitors out, prevent unauthorised egress (eg in schools) or to
discourage theft by people with authorised access. Depending on the technology employed, the level of control can
vary enormously. For example, particular personnel may be permitted access through defined access points and at
predetermined times. Maximum security is provided by state-of-the-art technologies such as fingerprint readers or iris
recognition.
When considering the type of access control to use, bear in mind: Level of security required
Number of areas and points to control - especially if more than one site is involved
Site layout Employee numbers (and turnover)
Visitor numbers
Likely future growth
Disabled access
How the system will be managed internally
Powered swing gates can be controlled via time clocks and security staff, while automatic barriers can be operated
using proximity readers, mechanical keys and swipe cards. Reception intercoms are useful for visitor entry/exit, and
induction loops and infrared overrides can provide additional safety.
The range of access control options is huge, so it is best to discuss the application with Procter Fencing Systems at
an early stage.
Fence extensions are effective at enhancing the anti-climb properties of fences. Three or more rows of barbed wireor tape can be installed, though beware of the need to comply with local planning restrictions in this respect.
Rotating toppings are, as with barbed wire, both a deterrent and effective at preventing climbing by most intruders.
Either one or two rows of rotating anti-climb spikes can be installed on fences, plus the same can be installed on
walls and buildings so that there are no breaks in the perimeter security.
Fence-mounted intruder detection systems incorporate a sensor cable within the structure being protected.
Audible signals and vibrations generated during an attack are transmitted to an analyser unit for detecting
penetration, cutting, climbing or attempts to sabotage the system.
Electrified perimeter security systems use a measured electronic pulse as a deterrent and to enable attacks on
the fence to be detected, thereby increasing the overall security of the fencing considerably.
CCTV and other electronic surveillance systems can provide additional security, depending on the application.
Note that CCTV is best used in conjunction with an 'open' type of fencing - such as welded mesh panels - rather than
palisade or similar types that can hinder visibility. Other electronic surveillance systems include acoustic and radar
cables, infrared detection and virtual fences.
Bollards and fixed barriers are useful in areas where fencing or gates are impractical yet there is a need to
prevent vehicular access while allowing free movement of pedestrians. Lifting bollards can be used where occasional,
controlled vehicular access is required. A wide variety of bollard types and styles is available to suit different aesthetic
and security requirements.
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Selecting and Specifying FencingFrom the above, it can be seen that there is a wide variety of fencing types from which to choose, though it is also
necessary to take into account any other security measures before the final decision is made. It might be felt that
there is a trade-off to be made between security, durability and aesthetics, but an acceptable balance should always
be achievable, perhaps by means of additional measures to enhance the security of a fence that might not provide
adequate security on its own.
Most steel fence types are available with a durable hot dip galvanised and coloured powder-coated finish. Fencing
suppliers normally have one or more standard colours, but custom colours can usually be specified as an extra-cost
option. The combination of galvanising and powder coating gives excellent long-term protection with little or no
maintenance required.
Other things to consider when selecting and specifying fencing include the need to use fencing and materials that
comply with British or European Standards, the selection of a good quality and reliable supplier, and the question of
who will install the fencing (see later for more detail on these points).
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StandardsSome applications require compliance with British or European Standards. The following table lists the fencing-related
standards most commonly encountered in the UK.
BS 1722-1:2006 Fences. Specification for chain link fences
BS 1722-2:2006 Fences. Specification for strained wire and wire mesh netting fences
BS 1722-4:1986 Fences. Specification for cleft chestnut pale fences
BS 1722-5:2006 Fences. Specification for close-boarded and wooden palisade fences
BS 1722-7:2006 Fences. Specification for wooden post and rail fences
BS 1722-8:2006 Fences. Specification for mild steel (low carbon steel) continuous bar fences
and hurdles
BS 1722-9:2006 Fences. Specification for mild steel (low carbon steel) fences with round or
square verticals and flat horizontals
BS 1722-10:2006 Fences. Specification for anti-intruder fences in chain link and welded mesh
BS 1722-12:2006 Fences. Specification for steel palisade fences
BS 1722-13:1978 Fences. Chain link fences for tennis court surrounds
BS 1722-14:2006 Fences. Specification for open mesh steel panel fences
BS 1722-16:2009 Fences. Specification for powder coatings used as a plastics finish to
components and mesh
BS 1722-17:2006 Fences. Specification for electric security fences. Design, installation and maintenance
BS 4102:1998 Specification for steel wire for general fencing purposes
BS 8220-2:1995 Guide for security of buildings against crime. Offices and shops
BS 8220-3:2004 Guide for security of buildings against crime. Storage, industrial and
distribution premises
BS EN 10223-1:1998 Steel wire and wire products for fences. Zinc and zinc alloy coated steel barbed wire
BS EN 10223-2:1998 Steel wire and wire products for fences. Hexagonal steel wire netting for
agricultural, insulation and fencing purposes
BS EN 10223-3:1998 Steel wire and wire products for fences. Hexagonal steel wire netting for
engineering purposes
BS EN 10223-4:1998 Steel wire and wire products for fences. Steel wire welded mesh fencing
BS EN 10223-5:1998 Steel wire and wire products for fences. Steel wire woven hinged joint and
knotted mesh fencing
BS EN 10223-6:1998 Steel wire and wire products for fences. Steel wire chain link fencing
BS EN 10223-7:2002 Steel wire and wire products for fences. Steel wire welded panels. For fencing
BS EN 12839:2001 Precast concrete products. Elements for fences
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Supply and InstallationAs well as selecting the right type of fencing and complementary security measures, it is vital to choose a supplier
that will ensure the fencing is manufactured to the correct specification and delivered on time. In addition, it is highly
recommended that the fencing is installed by the supplier's own skilled installation teams in accordance with a quality
assurance scheme accredited to ISO 9001:2008.
A fence is only as good as its installation. Poorly installed fencing detracts from the appearance of the premises, and
everybody knows how important first impressions are. An invited visitor to the site may see the poor fence as a
reflection of the company's own standards, and a potential intruder may look upon poorly installed fencing as a sign
that the company pays little attention to security.
Furthermore, poorly installed fencing may be easier to breach in some cases, and it will be more likely to need repairs
and maintenance earlier than would otherwise be necessary. In the worst case, an insurer may contest a claim if the
security fencing is deemed to be unsatisfactory.
Installing fencing is a skilled job and specifiers should be aware that some fencing contractors hire unskilled labour
on a project-by-project basis, rather than retaining a team of properly trained installers.
Procter Fencing Systems is the one of the UK's leading specialist manufacturers of fencing and gates. From its sites in
Leeds, South Wales and Brentwood, Procter Fencing Systems offers a comprehensive service to survey, design,
manufacture and install fencing and gates nationwide. All products are designed in accordance with the requirements
of ISO 9001 and all meet the appropriate health, safety and product standards. Installation is carried out by the
company's own teams of skilled installers.
Because Procter Fencing Systems has its own design and manufacturing facilities, the company can readily work toarchitects' designs for custom fencing and gates. Furthermore, the company is able to maintain strict controls over
the workmanship and scheduling. Procter Fencing Systems is therefore ideally placed to interpret architects' designs
to create attractive, secure perimeter fencing.
PDF drawings of standard products are available to download directly from the company's website, and CAD drawings
of special projects can be supplied following order placement.
As well as the photographic gallery and PDF drawing downloads mentioned above, the Procter Fencing Systems
website also has brochures, product datasheets and project datasheets that can be freely downloaded. These provide
a wealth of information to help architects and their clients make decisions about which type of fencing to use.
For every project, Procter Fencing Systems appoints a Contract Manager to ensure that all aspects of the project meet
the client's requirements, from design and specification, through to quality and delivery schedules.
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Further InformationProcter Fencing SystemsWebsite: www.fencing-systems.co.uk
Address: Northern England: Isabella Road, Garforth, Leeds LS25 2DY.
Tel: 0113 287 6282 Fax: 0113 287 6284 Email: [email protected]
Address: Wales and the South-West: Pantglas Industrial Estate, Bedwas, Caerphilly, CF83 8XD.
Tel: 029 2088 2111 Fax: 029 2088 8544 Email: [email protected]
South-East England: 10 Fortenay House, Ongar Road, Brentwood, CM15 9GB
Tel: 0800 294 4177 Fax: 01277 213649 Email: [email protected]
BSITel: 020 8996 9001 Fax: 020 8996 7001
Email: [email protected] Website: www.bsigroup.com
The information contained in this publication is intended as a guide only and is believed to be correct at the time of going to press. However, it is the
reader's responsibility to ensure that all current legislation and regulations are complied with when specifying or installing fencing.
Procter Fencing Systems, Pantglas Industrial Estate, Bedwas, Caerphilly. CF83 8XD
Tel: 029 2088 2111 Fax: 029 2088 8544
Email: [email protected]
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