An air dome makes it possible to cover a football pitch.
This ensures the quality of training. It offers opportunities
to advertisements and sponsors exposure. Renowned clubs
including Bolton Wanderers and AFC Ajax were already
using a dome of Poly-Ned.

Placing a football hall seems a big step for a football club, in practice it is quite clear. Poly-Ned takes you through this process by helping you set up an operation of calculation, applying for planning permission and supervising the entire construction process.

Poly-Ned Football air dome covers AFC Ajax' Adidas miCoach Performance Centre





Substrate

The Poly air dome can easily be assembled on any substrate made-to-measure, whether this is artificial turf.

Lighting

One of the biggest advantages of a Poly air dome is the fact that it has a large daylight translucent surface. You will not need artificial lighting during the day and you can, therefore, enjoy for example playing tennis in daylight! The Poly air dome can be equipped with different types of lighting for the evening hours. Below a few types that are often used are described.


Direct lighting
Direct lighting: 12 light points (400 W each) per court – suspended from the roof of the dome. This lighting
method provides uniform lighting over the whole of the court.
Direct lighting
Indirect lighting: 3 light points (2000W each) per court.

Connections to a Permanent Building or Property

It is possible, in some cases, to link permanent buildings to the air dome. This increases the commitment to the game. It is certainly a good idea to take this into account from the start of the design process in the case of new developments.
Poly-Ned can provide advice and supply the required technical information when connecting the Poly air dome to a permanent building or property. Below you will find a few examples of permanent connections.


Connections to a Permanent Building or Property Connections to a Permanent Building or Property
Connections to a Permanent Building or Property Connections to a Permanent Building or Property


Technology

A Poly air dome is created by blowing air under a particular material (the dome skin), that is fixed around the tennis court. A fan unit is used for this, this unit may include a heating system. The slight overpressure that is created when the air is blown in, is responsible for the typical rounded shape of a Poly air dome. In addition, access facilities are installed.

Once, anchors are fixed to the ground every 1,5 meter (approximately), around the perimeter of the surface to be covered. These anchors have sufficient grip to absorb the forces that act in the dome.

The anchoring system is installed once just under the surface layer of the tennis court. This special anchoring system has been developed by Poly-Ned. Any fencing that may have been erected next to the football pitch can simple stay; the damage to the football pitch is minimal.

A dome skin consists of a stainless steel or galvanised steel net, an insulation layer and a specially coated polyester fabric that ensures that the skin is waterproof and windproof.


Application of an anchoring system
Application of an anchoring system
The dome's skin consists of several layers
The dome's skin consists of several layers

Every air dome has a fan. This fan is installed once by the Poly-Ned engineers. Air is blown under the dome skin by the main fan. This fan will continue to be operational even when the steel cable net has taken its defined form. A separate emergency fan will automatically be activated should there be a disaster. The pressure in the dome will be automatically increased when there are high winds.
Heating of an air dome can be achieved by use of a system based on natural gass, hot water/steam or electricity.
This unit can be equipped with a directly fired gas/oil burner or hot water system 90º/70º for the heating of the dome.

The fan is linked to the dome through two air ducts. The first duct blows air into the dome. The other duct exhausts the air out of the dome. This returned air will, next, pass through a heat exchanger and will again be blown into the dome through the air duct. This ensures a continuous circulation. The leakage losses of the dome are supplemented with fresh air from outside. The air pressure in the dome is at least 25-40 mm/waterpillar (250-400 Pa). Should there be a pressure loss due to, for example, a power failure, the emergency fan will automatically be activated.

The fan unit may also be positioned outside the fencing that is already in place.

Example of  an air fan unit
Example of  an air fan unit
Air fan unit connected to an air dome
Air fan unit connected to an air dome


The main entrance uses an integrated swing door. In consultation with the client, many configurations. are possible.


The main entrance of an air dome
The main entrance of an air dome
In case of calamities an emergency door can be used
In case of calamities an emergency door can be used


In case of calamities an emergency door can be used. Every Poly air dome is equipped with one or more emergency doors.
The number depends on the maximum number of persons that may be present in the dome.


An equipment door for the supply of objects
An equipment door for the supply of objects
In case of calamities an emergency door can be used
In case of calamities an emergency door can be used


(Annual) erection and disassembly

(Annually) The dome skin is laid out and the steel net is mounted to the anchorage. This usually takes place at the end of
the summer season, in case of a tennis dome. The dome skin, including the net, is disassembled in the spring so that club
members can again play tennis outdoors. The mounting and demounting will be supervised by a Poly-Ned expert supervisor.

A movie about the (annual) construction of a football dome can be found here

The roll out of the dome's skin
The roll out of the dome's skin
Positioning of the steel net
Positioning of the steel net


Project Examples

Poly-Ned has already realised the “castles in the air” that hundreds of customers were dreaming about. Below you can find a few typical examples of football dome projects.

Adidas
Mycoach
Amsterdam


Description
On Friday, April 29, 2011, the sports dome on the sports park ''De Toekomst'' has been inaugurated officially for the A-and youth selection of Ajax. At the training complex of Ajax, next to the arena, Poly-Ned placed a brand new dome with huge dimensions (76 x 120 meters).

This hall is part of the Adidas miCoach Performance Centre and is the venue for a special collaboration between Ajax  and the Vrije Universiteit Amsterdam in motion analysis. On  the roof of the dome has been installed an unique video system, a  so called player tracking system. This system makes it possible to analyze  speeds and distances of dribbling, shooting heads.

Obviously, these inflatable structures are available with different logos and / or stripes

Poly-Ned Football air dome covers AFC Ajax' Adidas miCoach Performance Centre

Manchester City
Football dome

Description
This is a hall at the training complex in Manchester city. It is the training facility for the first team.

This winter Manchini and his man spent many ours in this unique accommodation.

From the end of May, the hall will be dismantled and stored in a storage container; it will be erected again in September.




Mia
Moskou
Rusland




Bolton Wanderers
Bolton
Engeland




Skonto
Letland



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Technology is constantly evolving. Also in the field of textile architecture. Poly-Ned is an ambitious company with motivated employees, which enjoys to extend 35 years of experience. New materials, new techniques, Poly-Ned thinks in clear and affordable solutions and likely 'out of the box... Poly-Ned processes of flexible plastic and metal materials, or combinations thereof. Examples include (combinations) of fiberglass and polyester, PVC, PU, PTFE, ETFE, and metals such as AISI 304, 316 and galvanized iron. The light weight material such questions only a slight back construction ... Publications on our projects appear regularly, from small items to extensive reporting or even short films. Wherever possible, we refer to the full text of the publication. You can find a complete overview of all our publications by clicking on the read more button below. Please fill-out the form below and we will contact you as soon as possible.

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