The combination of the latest materials and technologies used in DUOL air domes offers you low operating costs and a feeling of comfort, regardless of weather. Turn-key building projects can be ready for use in less than 3 months and are completed at a significantly lower cost per square meter than any conventional building. Air domes offers great flexibility and can be used as a seasonal, permanent or temporary covering. DUOL Air domes are built to meet any local building codes and are able to withstand heavy snow, high or low temperatures and high winds in all types of environments. The air dome is suitable to cover any sports field, warehouses, industrial facilities, etc
Football / soccer air domes are versatile wind and snow shelters providing a fantastic environment for coaching and playing football in. Soccer air domes can either be all year facilities or simply provide a weatherproof area to coach and play in during the winter and be taken down during the summer months by our installation team.
Tennis dome / Tennis bubble is an ideal solution for the seasonal or permanent coverage of one or more tennis courts. The particularly quick erection of the tennis bubble and its equally rapid dismantling that leaves no visible traces allowing for temporary or permanent coverage, thereby increasing investors’ profit levels. The excellent insulation characteristics of the sports bubble provides players with ideal playing conditions and protects them from the weather.
Tennis bubble cost are lower than traditional structures as it doesn’t need sophisticated site preparation such as concrete foundation and framing and other complications that conventional buildings have. The combination of the latest materials and technologies used in DUOL sports bubble offers you low operating costs.
Pool enclosures prolong the use of outdoor swimming pools throughout the year. Pool dome offers complete weather protection and optionally it can be also quickly dismantled. The particularly quick erection and its equally rapid dismantling that leaves no visible traces allows for temporary or permanent coverage, thereby increasing investors' profit levels. Only few days to assemble and disassemble the pool bubble cover, easily and with minimal effort.
Pool enclosure costs significantly less than traditional structures as it does not need any traditional site preparation such as full concrete foundation or framing and other requirements connected with conventional structures. Furthermore, many countries do not require a classic building permit since a pool domes is not considered a permanent structure. With higher insulation R-values, our pool enclosure can also compete with traditional built-up roofs to make for energy-efficient structures, a big plus when long-term use is a factor. They withstand extreme weather conditions: temperatures from -55°C and up to +70°C, wind speed up to 250 km/h, storms, snow load up to 480 kg/m2, ice, heavy rain, hail...
DUOL air inflatable dome is the most economical and convenient way of covering hockey rinks. Inflatable structures offer ideal opportunities for uninterrupted hockey training, ice skating or the playing of hockey regardless of the weather outside. The stability of air inflated structures allow various facilities to be set up within the inflatable sports dome, including stands, changing rooms etc.
Play inside in sports dome in perfect conditions, protected from the elements. Expand your sports venue operational time to all year round / entire day.
Our sports dome can cover multiple sports fields at once, offering maximum flexibility for all kinds of sports. The combination of the latest materials and technologies used in our sports dome means low operating costs and a feeling of comfort for the people using them.
Sports domes provide all year round or seasonal protection to enable you to increase revenue from your facilities throughout the year.
With the changing climate, it is no longer guaranteed for non-stop seasons, that’s why many of our investors ask to cover their golf facility. Air dome is the perfect cover to keep indoor golf range active despite the weather conditions whatever they are. The golf dome allows you to practice all aspects of your golf game all year round.
One of the important advantages of golf dome is wide-open, clear-span space inside the structure, ideally for indoor golf. DUOL golf bubble is more space-efficient with more vertical walls - more playable area and overall greater indoor experience.
The Velodrome airdome concept is a new concept that helps communities and clubs in creating large indoor cycling and multi-purpose facilities.
DUOL air domes require much less construction cost than traditional structures as it doesn’t need sophisticated site preparation such as concrete foundation and framing and other complications that conventional buildings have.
For any number of business applications, DUOL pneumatic structures provide large, clear, free-span areas for maximum usable floor space with a minimum investment.
DUOL pneumatic structures are designed to make a perfect distribution centers. Whereas traditional distribution centers are expensive and can take months to be constructed, DUOL pneumatic structures are built faster with a fraction of cost of conventional buildings.
DUOL air domes have many unique advantages including innovative DUOL ECO membrane system, which provides highest thermal insulation with rock-solid weather resistance. Other benefits:
The air dome is a large clear span, covered with one or more layers of special PVC coated fabric and anchored to the ground, under internal pressure and without any kind of construction; the pressurized air is the main construction element.
The ventilation system provides a slight overpressure inside the air dome to ensure the distinguished form of the airdome, hence the stability of the airdome under all climatic condition. It is necessary to inflate certain amount of air in the airdome constantly. The same inflating units can work as a heating unit, to heat up the entire space. The optimal pressure inside the air dome is 200-300 Pascal under normal conditions, depends on the air dome size and specifications.
The ventilation system ensures the fresh air circulation inside the air dome to keep a healthy, fresh and cool environment for the visitors inside the air dome.
In the case of local electricity supply failure or pressure loss, the emergency backup unit intervenes immediately; the supply of electricity to all units can additionally be provided by the electrical generator. Air domes are built to code and are structurally stable structures – even in extreme weather.
The air dome concept is relatively new and was implemented on a large scale by David H. Geiger during Expo '70 in Osaka, Japan in 1970. After the initial prototype, many research & innovations followed in this field in order to create the best possible structure. With huge experiences and many innovative solutions, we are proud to be market and technology leader.
Your air dome may include optional items such as AC system, insulation, backup generators and specialized lighting controls… Duol air domes have many unique advantages including latest membrane technology, certified quality, officially tested thermal insulation. Our membranes are fire retardant and coated with a special self-cleaning film to preserve the perfect whiteness, guaranteeing maintenance-free operation of fabric building and significantly extend air dome lifespan.
The ventilation system provides a slight overpressure inside the air dome, ensuring a proper form for the dome, as well as stability of the pneumatic building in every climate condition. The same ventilation system can have a heating and/or cooling option which provides the desired temperature inside the dome. The system is controlled automatically (automatic pressure & heating regulation with an emergency backup system). The membrane’s role is identical to walls and roof in conventional structures.
An air dome is suitable for any application which requires a clear span. It can be used for sports such as football, tennis, volleyball, handball, badminton, basketball, swimming etc. Other applications are also possible, like warehouses, industrial facilities, events, military, agriculture etc.
The standard pressure inside the air inflated structure is 150- 250 Pa under normal conditions, depending on the dome size and specifications.
Yes. It is necessary to provide a certain amount of air in the structure continually. Simultaneously, this provides fresh airflow to the airdome to keep a healthy, fresh and cool environment for the visitors inside the dome.
Air dome costs significantly less than traditional structures as it does not need any traditional site preparation such as full concrete foundation or framing and other requirements connected with conventional structures. Furthermore, many countries do not require a classic building permit since an air dome is not considered a permanent structure. Each air dome is manufactured according to customer’s specific requirement which eventually reflects in air dome structures price which can vary from 40 up to appr. 150€/m2
Yes, DUOL provides all necessary technical drawings, static, thermal and other calculations related to the project.
By choosing different membrane systems, the thermal insulation could be in range between U= 1.74 - 3.05 W/m2K. There are also more advanced options with a U-value below 0.2 W/m2K.
One of the most significant air dome advantages is that no special membrane maintenance is required.
No daily maintenance is required, only periodical inspections and regular service (oil, belts etc.)
The expected lifespan in standard weather conditions is +40 years.
5-20 years warranty on the fabric and up to 2 years on other equipment.
Lead time depends on the project. Standard lead time is 2-3 months from the approved drawings until the airdome being ready for delivery.
The airdome components are modular and prefabricated which makes the installation process easy, quick, and cost-effective. The actual schedule depends on the air dome size and specifications. Standard air dome assembly time is 4-7 days (for domes covering up to 5 tennis courts) and 7-21 days for larger ones (full-size football field, industrial domes, etc.)
Sometimes extreme weather conditions (such as storms, floods, or heavy snow) can cause difficulties with erecting the airdome. In such case it is suggested to wait for better weather conditions, if possible.
Yes, each structure is unique. Dimensions, different colours, patterns, logos, etc. are designed upon customer's requests.
Absolutely! The air dome can be fixed to other buildings in different ways. Air dome has a flexible design which enables it to be installed even on top of existing buildings.
Definitely, the air dome structure could be dismantled in a period when it is not used. It requires only a few days to assemble and disassemble the air dome structure easily and with minimal effort.
Yes. The air dome could be easily disassembled and relocated to the new site.
The fabric should be protected and stored in a dry place.
There is no maximum size, we design, manufacture and install any reasonable span. However, if the span is enormous, the air dome cost will gradually increase.
Yes, it is possible upon request.
The standard colour is white. The client can choose a variety of different colours. However, air dome prices and production time might vary.
All parts of the air dome tent are certified. Air dome elements are manufactured in the EU and designed according to EN 13782 standards. All the elements are CE certified to meet the following criteria:
Reliability and safety are the most essential air dome features. A constant power supply is a critical item which must not be left to chance. Every air dome is equipped with an emergency backup system, which intervenes immediately in case of local electricity supply failure. It has 12-48 h autonomy, which can be extended up to 100h if required.
The back-up unit is an auxiliary emergency system, equipped by a diesel engine. Every air-supported structure is equipped with an emergency/backup system that ensures the stability of the structure in case of an emergency situation, such as pressure loss or exceptional weather conditions (extreme wind, snow). It works independently from electrical supply. It is sensitive to inside pressure fail, electricity break.
No, the fabric of the dome is flame-retardant (due to its particular chemical substances) and approved by international certificates.
Because of the fabric's strong polyester net sub-base, it is difficult to damage. Furthermore, thanks to the double membrane system, fabric domes are very rigid and vandalism-proof. In case of any damage on the outer membrane, the inner membrane still holds the proper airtightness and hence maintains the air dome stability.
No. The air-supported structure is an autonomous structure, which means that in an emergency it will maintain itself. The air-supported structure stability is provided by the emergency inflating unit, switched on at the detected minimal pressure drop.
The fabric can be easily fixed with the manual welding kit.
The air domes are equipped with many emergency exits, which can be used to evacuate the airdome effectively. Furthermore unlike a traditional building, an air dome does not suddenly collapse, it takes time to be deflated, which gives persons inside an air dome enough time to evacuate.
The quantity of emergency exits is determined considering air domes size, the purpose of use and the fire and safety measures in each specific country.
Yes, all parts of the fabric dome are temperature resistant in the range from -55 to +70°C, depending on the project requirements.
The structure resists an enormous amount of snow up to 480 kg/m2. The combination of the air dome shape, internal heating and the perfect flat surface ensure that the snow slides easily from air dome.
The structure is resistant to wind speed up to 250 km/h.
Yes. The fabric roof is resistant to hails hits.
Yes, it can be easily adapted to such climate conditions.
Yes, in such case the dome should be protected against corrosion.
Yes, the airdome is 100% resistant to earthquakes.
The membrane system consists of two or more layers of the membrane, which are welded together using HF (high frequency) welding technology. The outer membrane is stronger, made by high tenacity polyester fabric, and protected with special lacquering, to hold all the forces and outer influences. The inner membrane is lighter and acts as an insulation layer. At appr. every 3m meter strip, the membrane is welded by HF welds where the four membranes are overlapped and welded together to ensure the strong reinforcement in the vertical and horizontal direction. Standard membranes are UV-resistant and with the use of unique lacquering finish like Polyvinylidene fluoride (PVDF) or Titanium dioxide (TiO2 ) this resistance is even better, which increases membrane quality and lifetime. The standard fabric completely meets physical, technical, and fire standards as well as regulations.
Yes. Translucent fabric is used in a production of standard air domes for maximum daylight utilisation.
Every air dome needs a simple foundation only around the perimeter of the site to keep it anchored and secure. Different systems are possible to attach the air dome to the ground:
Inflating units, with air capacity 5.000 - 120.000 m3/h and power 1– 30kW, are used to provide air inflating into the air dome. On-demand there are also more advanced options possible:
It is possible to heat the airdome with natural gas, LPG, oil, hot water or steam, electricity, heat pump, biomass, or combined source.
Yes, DUOL has accomplished many projects in the Middle East, Asia and South America as well in some areas with extreme climatic conditions. DUOL air dome membrane is uniquely designed to withstand temperatures up to 70 degrees Celsius. Our airdome are designed AC-ready together with high thermal membrane insulation which reduces the heat entering the dome and maintains the climate inside the dome. The air conditioning system withstands heat up to 70 degrees Celsius.
The noise level is minimal to the surrounding environment. The main ventilation unit produces a noise of 50 to 70 dB, and the backup emergency unit 70 to 85 dB. If required, there is also an option for a ventilation unit that is featured with a silent mode. It can be equipped with silencers.
Yes. The pressure is controlled by regulating the recirculation and setting of the inflating unit's power.
The proper quantity of LED Lights will ensure the correct level of illumination inside the airdome. It can be installed in two different modes: direct or indirect. In the direct lighting system, the light is mounted on the ceiling. With the indirect lighting, the projectors are installed on metal poles that are directed upwards, and the light is reflected from the air dome membrane to light up the entire dome.
Both systems have their advantages. Based on the project’s specifications, we will recommend which option is better.
No. The air dome is an airtight structure. Only revolving doors or airlock doors can be used to maintain the air pressure inside the air dome and avoid any air leakage.
Yes, access is possible through the Vehicle & Equipment Airlock Access Door. There are two standard types of DUOL Vehicle & Equipment Airlock Access Door: T60 with standard dimensions of (6m x 3mm x 2.5m) and T80 with standard dimensions of (8m x 4m x 4m). However, the size can be customized upon the client’s request. The Vehicle & Equipment Airlock Access Door is meant to be an entrance for vehicles, a storage room of the equipment, or an auxiliary space of the object.
Yes, accessible doors are available. They are also useful for hand-truck deliveries. Two doors are built in a frame with a short connecting tunnel creating an airlock system, thereby maintaining the fabric dome building pressure and minimizing air loss.
It is required to build a simple concrete foundation around the perimeter of the air dome. Providing electricity supply and the heating source at the site (If heating is part of the project) is necessary.
To build/erect the air dome either a building permit or a manufacturer’s statement for EN 13782 standard is required. For accurate information, we recommend that you refer to the local authorities since procedures are different from one country to another.
It is required to provide the requested quantity of electricity and heating power depending on the specifications of the ventilation unit. In the drawings the location of the connection points will be marked.
Units are optimally located in the middle of the shortest side of the air dome and within the distance not more than 1,5m away from the airdome. On request, it is possible to locate the units further away from the dome, making ventilation pipes for each project separately.
The door location is selected upon the client’s request. The only condition is that the distance between the revolving door and the dome's corners should not be less than 3m, or 6m in case of the vehicle access door.
Yes, but DUOL takes the above-mentioned restrictions into consideration.
DUOL provides all the technical documentations for the structure. Furthermore, we assist you with any required documents which help the investor to receive a building permit.