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Company DUOL has been active on the market since 1992 and throughout this period Duol has
successfully attained the position of one of the most significant suppliers of fabric structures.
Duol success results from excellent price-quality ratio which is ensured by our in-house team of
specialists, our own production facility and certified quality. With our individual care to clients
we are experts at finding the most suitable solution and giving our clients best value.
More than 1100 covered sport facilities over the world have been designed, produced and
installed under the DUOL trademark. Our objects incorporate the latest innovations in design, fabrics,
anchoring, mechanical, electrical and energy saving systems.
We consider it our obligation to continually develop our fabric structures and continuously invest in
employees and latest technology in order to continue to be perfect business partner for our
clients.
Dušan Olaj
CEO
DUOL
Every component in DUOL air dome benefits from 20 years of experiences
and high investment in R&D.
DUOL engineers the structure to meet the same code requirements
established for permanent buildings. All DUOL’s constructions are produced
according to the European standard EN 13782.
This standard specifies safety requirements which need to be observed at
design, calculation, manufacture, installation, maintenance, operation,
examination and testing of mobile, temporary installed tents more than 50
m2 ground area. The content of this European Standard collects the different
existing national regulations and guidelines as far as possible.
DUOL’s final product is certified with ISO management system 9001 as
well in compliance with standard EN 13782, means we keep in all
calculations reserve as requested with this standard.
TECHNICAL PERFECTION
AIR DOMES
With Duol air-supported structures a variety of professional and recreational
sports and recreational activities can be played year-round, in any kind of
weather.
DUOL Air Domes offer the advantage of quick erection and the possibility of
permanent or seasonal use. Air domes are always cost effective! This is
possible due the fact that air supported structures do not require concrete, steel
or wooden supporting construction. Air is only supporting system provide the
amount of clear span space needed for. The short investment cycle involved
and their long durability ensure high profitability. The special design of DUOL
domes gives consumers the same level of comfort they are used to with
traditional sports buildings.
Changing climate it is no longer
guarantee for non-stop seasons, that’s
why many of investors ask to cover
their sports areas. Air supported
structures are perfect cover to keep
sports facilities active despite
the weather conditions
whatever they are.
MINIMUM INVESTMENT - MAXIMUM RETURNS
DUOL air supported structures are revolutionary structures offering unparalleled cost benefits
over conventional construction methods.
Cost of design, manufacture, site preparation and installation are all a mere fraction of those of
conventional construction.
Unlike traditional structures, Duol structures also require less paper work.
AIR DOMES
SEASONAL STRUCTURES
Quite often it is profitable to have the air structure in place only for wintertime activities and remove
air dome during the summer months.
AIR DOMES
During last 20 years Duol has covered over
1100 sport courts and as a clear market leader
enjoys the confidence of customers all over the
Europe, Scandinavia, Russia, Middle Asia,
Balkans and Arabic world.
The reason for the success of DUOL turnkey
projects is its in-house manufacturing,
engineering and design department along with
its team of experienced project managers and
assembling personal who offer unique
solutions based on the individual needs of
the customers.
FC Lokomotiv Moscow
Imatra, Finland
FC Tromso
Kauhajoki Zheskazgan – 15000m2 big
PRESTIGUE REFERENCE OBJECTS
Klaukkala
Hveragerdi, Iceland Seinajoki
Stadion Yantar - Moscow Turku
PRESTIGUE REFERENCE OBJECTS
Dinamo Volgograd Hockey arena Sochi
FC Kontu FC Turku
PRESTIGUE REFERENCE OBJECTS
Copenhagen Trondheim
Brussels Food processing plant air domes
PRESTIGUE REFERENCE OBJECTS
EXPERIANCES IN ALL SPORTS
FOOTBALL
TENNIS
EXPERIANCES IN ALL SPORTS
POOLS
EXPERIANCES IN ALL SPORTS
HOCKEY
EXPERIANCES IN ALL SPORTS
MULTISPORT
EXPERIANCES IN ALL SPORTS
HANDBALL
EXPERIANCES IN ALL SPORTS
GOLF
EXPERIANCES IN ALL SPORTS
We manufacture, install and maintain the
products we sell. We are not simply “brokers,”
selling components manufactured by others
and relying on a disconnected group of vendors
to perform the follow up and warranty services
demanded by an air, frame or tension structure.
Our manufacturing experiences, best quality
materials and ISO 9001 production quality
guaranties you best product warranty of its
kind.
DIRECT SUPPLIER
DIRECT SUPPLIER
DUOL production facility
Duol does not sew or “heat seal”
together its fabric. We use
Electronic high frequency (HF)
welders to attach fabric panels in
a way that equals the original
strength of the fabric.
This increases the life of the
structure, prevents undesirable
air loss, and eliminates costly
maintenance and repair.
DIRECT SUPPLIER
Duol directly provides you with:
• plan of foundation,
• manuals,
• technical characteristics,
• sketches,
• certificates,
• structural drawings,
• calculations,
• and others….
sealed by a professional engineers for the owner’s use in obtaining all necessary documents.
In early stage Duol team can also calculate
estimated total energy usage.
DIRECT SUPPLIER
Duol provides you with all structural drawings and calculations.
Duol provides you with all structural drawings and calculations.
COSTUM DESIGN
Do you need to design a fabric structure to meet a
certain thermal insulation? Do you want specific
shape of the dome? Need a specific color? Duol’s
proprietary, high strength fabric has a wide variety of
options available to meet your needs and Duol
engineers are there to assist you.
We understand our clients and we propose a
solution meet the specific requirements of the
given project.
Whatever combination of activities you can imagine
for your facility, we can provide you with a turn-key,
custom designed air-supported structure to cover it.
Utilizing our proven technology, we are able to roof
an area of practically any reasonable size, be it a
single tennis court or a large football pitch.
COSTUM DESIGN
Duol can supply all the elements (stands, wardrobe, toilets) necessary to provide a finished product for
recreational or professional use.
STANDS, SHOWERS, WARDOBES …
STANDS, SHOWERS, WARDOBES …
QUICK INSTALLATION
QUICK INSTALLATION
After design approval we design,
manufacture and install turnkey
structures in a matter of weeks.
Installation is simple, quick and
cost effective.
The dome is hand-over to the
client after air structure detailed
maintenance course with
complete operation &
maintenance manuals for the air
structure covering and the
equipment included.
1. PREPARING FOUNDATIONS
Preparing foundations, drilling and
inserting anchors (build in anchors are
added within filling with concrete).
INSTALLATION PROCESS
2. STRETCHING THE MEMBRANE
During stretching and joining membrane
additional help from local peoples are
required (usually 20-25), fore some
hours. Pallets with membrane are placed
on the right position by crane or lift fork.
Before placing doors on spot,
foundations for them must be ready.
3. PLACING HEATING-INFLATION UNIT
Before placing heating-inflation unit on the
spot, foundations for them must be ready
with all necessary electric cables and pipes
for fuel or gas.
4. ANCORAGING MEMBRANE
Anchoring system depends on the type
(seasonal or permanent) and on the size
of air dome. Pipes or L bars are usually
used for fixing the membrane.
INSTALLATION PROCESS
5. INFLATING THE DOME
Inflating of the dome is done in
windless conditions. Inflating takes
20-50 min depending of the size of
the structure.
6. INSTALING LIGHTING
To install direct lights dome must
be deflated, that means procedure
depends on all the conditions as for
inflating of the dome.
INSTALLATION PROCESS
AFTER SALE SUPPORT
After you purchase Duol air dome you relay to most
experienced group of professionals in the world.
For all of our customers, we are available 24
hours a day, 7 days a week.
Some of our after sale services:
• Seasonal air supported structure installation and
takedown
• Yearly maintenance
• Air supported structure inflation system
maintenance and service
• Inflation system retrofitting
• Heating and/or cooling system maintenance
• Fabric retrofitting
• Emergency maintenance
• Air supported structure relocation & moving
Each Duol air structure is equipped with a
mechanical system that is custom-
designed to fit exact specifications to
maximize energy efficiency.
Duol air generators are started-up and
warranted by Duol’s factory-trained and
authorized technicians.
AIR GENERATORS
DIRECT SUPPLIER
We are only fabric company designing air
generators specially for air domes.
DUOL air generators production facility
DIRECT SUPPLIER
Benefits of Duol custom designed air generators:
Improved modulating system (up to 35% saving)
Smart energy-saving mode
In calm conditions, blower units operate at only 50% capacity, greatly
reducing running costs
Optimized combustion, thanks to condensing chamber
Reduced hot air stratification
Mounted on anti-vibration basis - silent operation
Special insulated sandwich panels resistant to extreme low
temperatures
Other
Quality stainless steel frame
different energy sources: gas oil, hot water, electricity, gas;
Control panel on board – Easy manual operation
Environment friendly with zero carbon monoxide (CO), minimum
nitrogen oxides (NOx) and low carbon dioxide emissions
By designing our equipment specifically for the use for air supported
structures, we have refined our controls, air distribution and quality to
the best in the industry. DIRECT
SUPPLIER
AIR GENERATORS
EMERGENCY UNIT
Reliability and safety are the most important
features of Duol structures, and the emergency
source of power is a critical item that must not be
left to chance.
Duol emergency units, special designed for air
domes, include three models:
SD 1
SD 2
SD 3
The difference between the units is in the flow of
air. Each model has three possible versions:
STANDARD
STANDARD + ANEMOMETER
MODULATING
DUOL air generators production facility
The emergency unit consists of diesel engine or/and 380V
electric motor, connected to a centrifugal fan, that provides
constant pressure inside the dome in normal conditions.
Emergency unit automatically starts when the pressure inside
the dome is low, the main power is interrupted, in high wind
speeds. The pre-calibrated factory operating pressure is ca.
200 Pa or according to specific user requested.
When the pressure drops below of security limit the electric
motor become operational. Diesel engine intervenes only
when the electricity fails.
Our system of double engine diesel and electric providers a
substantial savings – 50% of energy the electric operational
system under normal atmospheric conditions (windless,
snow, heating) can maintain the pressure inside the dome
instead of the main generators.
EMERGENCY UNIT
ENERGY SAVING OPTIONS
WIND SPEED DETECTION SYSTEM
Our wind speed detection system is the most advanced automatic system available. It uses modern
computerized controls for interior pressure, heating and monitoring. The emergency unit is
switched on by the system in case of strong wing in order to maintain the right pressure inside the air
dome.
AIR GENERATORS WITH MODULATING SYSTEM
The control system proportionally decreases or increases burner’s heat output as the appliance
temperature approaches the set point. There is an automatic variation of the burner’s heat output
depending on requirements. With this system you can optimize consumption. This system provides
up to 35% saving. (In non-modulating system there is only one firing rate here: on or off and it fires
at its maximum rate whenever the burner is on.)
TRANSPARENT MEMBRANE
Transparent membrane offers even grater light
transmission, offering additional energy saving and
pleasant indoor environment.
ENERGY SAVING OPTIONS
INTELLIGENT ENERGY CONTROL (INTELLERGY)
Duol has integrated a state of the art Intelligent Energy
Control (Intellergy) into the inflation unit to enhance
system controllability, stability and efficiency.
Intellergy offers constant real-time supervision of the air
domes activity and vital technical data with alarming. This
DUOL high-tech system is connected to various sensors
and relays which are gathered in the main unit and from
there transferred through LAN internet cable or GPRS
signal to the internet server. Data is there processed,
logged and displayed in a different graphs and tables. For each data an alarm can be adjusted to
inform the air domes user with SMS on mobile phone. In this way the customer has total surveillance
over the air domes pressure, temperature, lighting, alarms … For some selected parameters remote
managing can also be adjusted (lighting, heating...).
DE-STRATIFICATION SYSTEM
De-stratification system improve temperature distribution
in the space and reduce the time needed to reach the
Ta, this in turns reduce the time the heaters are
turned on. It is designed for quiet operation. With De-stratification system
Without De-stratification system
DMSTM (Double Membrane System) is
innovative air pocket solution which
greatly reduce energy consumption.
DMSTM comes with three variants.
Standard DMSTM provides thermal
insulation of 3.05 W/m2K, while DMS
PlusTM provides thermal insulation
down to 1.74 W/m2K and E-DMS
PlusTM down to 1.43 W/ m2K
(measured at Finnish Research Institute
VTT).
DUOL DMSTM
DMSTM thermo (Double membrane
system without thermal ) is available
for best thermal insulation.
Standard Duol membranes are UV resistant, but with use of special lacquering finish like
Polyvinylidene fluoride (PVDF) or Titanium dioxide (TiO²) this resistance is even better, what
increases materials quality and lifetime.
FABRIC CHARACTERISTICS
YOUR BENEFITS:
• High and consistent transparency & luminosity
• Whiteness, visibly cleaner surface
• Greater resistance to chemicals
• Less cleaning cost
• Ecological friendly due to reduced energy and water
usage for cleaning
• Folding of membrane doesn't case damage to coating
materials. This offers easy storage of membrane during
seasonal removal.
DUOL DMS PLUS
DUOL implements advanced membrane coating, which is self-cleaning to preserve perfect white
color of membrane for many years and for many dismantling and assembling procedures.
AESTHETIC PERFECTION
Duol membrane technology is a warranty that DUOL air domes are object of admiration among
visitors and local community and are object where people love to gather.
DURABILITY / LIFE EXPECTANCY
In DUOL double membrane system, the replacement of the membrane is
not required and the life expectancy is extended to 40+ years, based
on tests, experiences and existing projects.
NATURAL LIGHT
As both membranes are highly translucent, the use of lighting system
is not required during the daytime, what leads to big electric energy
savings.
FIRE RESISTANCE
All membranes are fire retardant, certificated by following certificates:
M2/NFP 92-507, TEST 2/NFPA 701, CSFM T19, B1/DIN 4102-1, BS
7837, B1/0N0RM B 3800-1, M2/UNE 23.727, VKF 5.3/SN 198898 and
others.
RIGIDITY
With mechanical resistance and specific porosity design our fabrics
provide excellent dimensional stability, structural strength and wind
protection. Thanks to DUOL expanded double membrane system, the
DUOL domes are very rigid and vandalism resistant. In case of any
damage on the outer membrane, the inner membrane still hold the
proper air tightness and consequently pressure – air dome stability.
FABRIC CHARACTERISTICS
STORM PROTECTION
DUOL dome has an automatic safety back-up system, which
control the air dome pressure and stability in case of storm
and high wing.
SNOW
The shape of the air dome, which is designed depending of its
size and considering the weather conditions of its destination,
totally flat surface and lacquering finishes, ensure that the
snow slides form the air dome.
CONDENSATION
Thanks to excellent insulation, achieved by DUOL expanded
double membrane system, there is no condensation inside
the air dome. Condensation is on inner side of the membrane
and in between all layers.
ENVIRONMENTAL COMMITMENT
Lightweight and durable, Duol fabrics are also 100%
recyclable.
FABRIC CHARACTERISTICS
SpaceDomeTM insulation system
developed by Duol is only air-dome
insulation system to efficiently
reduced al three types of heat
transfer: conduction, convection and
radiation.
It is made from high-tech materials
developed in space technology with
lowest thermal conductivity of any
solid material.
SPACEDOMETM
SpaceDomeTM has better thermal performance than
standard double membrane system. With
SpaceDomeTM system air dome heating and cooling
costs are reduced to the level of a conventional
building which is outstanding achievement.
SPACEDOMETM
Inner shell dome
Outer shell dome
Encapsulation
Encapsulation
SpaceDomeTM
Inner air layer shell dome
Outer air layer shell dome
SpaceDomeTM is made from 7
layer system which is specially
designed to reduce convection,
conduction and radiation.
SPACEDOMETM
Production of 7 layer system. Pure material delivered from
factory.
SpaceDomeTM insulation is ready
for shipment.
SpaceDomeTM during
installation process. Word most energy efficient
air dome is finished.
Duol DMSTM membrane system provides resistance to harsh climatic conditions and ensures the
high temperature insulation. For maximum energy savings DMSTMThermo and SpadeDomeTM
insulation system are available.
Duol heating units safely and efficiently heat the air structure to the desired temperature and
humidity. Air conditioning system is available as well, and is custom-designed for each project’s
specific requirements.
ALL WEATHER COMFORT
DUOL air domes are located around the world in a variety of climates - from cold and windy
Kamchatka to hot deserts in Middle East.
EXTREME WEATHER CONDITIONS
DUOL air supported structures are designed according to local weather conditions and are
engineered to withstand most of unusual weather conditions and natural disasters.
Duol is expert in designing air domes for extreme weather condition. We enhance all
elements (membrane, air generators, anchoring system…) to withstand extremely low
temperatures with strong winds and heavy snow.
EXTREME WEATHER CONDITIONS
Duol advanced technology allows installing air domes in extreme weather conditions without any
cables support.
In fact only one Duol air dome is supported with cables. This air dome is installed in Kamchatka in
far east of Russia, where winds quite often reach speed more than 50 m/s, alongside with heavy
snow. For other climate areas there is no need for cable support with Duol technology.
EXTREME WEATHER CONDITIONS
DUOL DOUBLE MEMBRANE SYSTEM vs CABLE NET SYSTEM
INSULATION
DUOL double membrane system provides excellent thermal insulation from 3W/m2K to 1.74W/m2K, measured
at Finnish Research Institute VTT. This is achieved by inflating the interspaces between two membranes with air
(approx. 50-100 Pa, compared to the air dome inside pressure). This slight overpressure ensures that the
membranes are always inflated, while the static air is an excellent insulator. Compared to cable net system,
which total thickness is only a couple of centimeters narrow, and offers a very poor insulation.
FIRE RESISTANCE
All membranes are fire retardant, certificated by following certificates: M2/NFP 92-507, TEST 2/NFPA 701,
CSFM T19, B1/DIN 4102-1, BS 7837, B1/0N0RM B 3800-1, M2/UNE 23.727, VKF 5.3/SN 198898. Compared
to cable net system, the layers are not fire safe, in fact they are extreme flammable, which presents a great risk
to the whole of the structure.
DURABILITY / LIFE EXPECTANCY
In DUOL double membrane system, the replacement of the membrane is not required and the life expectancy is
extended to 40+ years, based on tests, experiences and existing projects. Compared to cable net system,
where the layers have to be replaced every couple of years also due to friction between cables and fabric.
INTERNAL PRESSURE
The pressure kept in the DUOL domes is minimal, from 150-250 Pa in normal situations, what ensures perfect
stability in all weather conditions and less energy consumption. Compared to cable net system, which due to its
weight requires much bigger internal pressure (250-400Pa) which leads to much bigger electric energy
consumption.
DUOL DOUBLE MEMBRANE SYSTEM vs CABLE NET SYSTEM CONDENSATION
Thanks to excellent insulation, achieved by DUOL double membrane system, there is no condensation
phenomenon inside the air dome. In cable net system, because of poor insulation and big thermal bridges,there
is big risk for condensation on the outer side of the dome.
LOSE OF TRANSLUCANY
Duol fabric has self-cleaning characteristics and is absolutely maintenance free. Cable net system is great
obstacle for self-cleaning mechanism. Cables on the outer side of the membrane prevent the dirt, organics
microorganism… from sliding of the surface. Dirt cannot be totally removed, therefore translucency is reduced
what represents great costs for the client.
RIGIDITY
Thanks to DUOL expanded double membrane system, the DUOL domes are very rigid and vandalism resistant.
In case of any damage on the outer membrane, the inner membrane still hold the proper air tightness and
consequently pressure – air dome stability. Compared to cable net system, where in case of any membrane
damage there are big air losses and the structure stability is jeopardized.
SNOW
The shape of the air dome, which is designed depending of its size and considering the weather conditions
of its destination, totally flat surface and lacquering finishes, ensure that the snow slides from the air dome.
Compared to cable net system, where cables on the outer side of the membrane prevent the snow from sliding
of the surface, which lead to the snow accumulation and consequently to air dome collapse.
SEASONAL INSTALLATION / DISMANTLING
As two membranes are welded together, the installation process is extreme fast. Membrane should only to be
spread, connected and anchored and the erection of the dome can be made. This operation can take only a
few hours. The same is in seasonal dismantling. As the cable net system requires spreading of different layers,
connecting them and afterwards installation of metal net, the installation/dismantling process in significantly
longer and costs are higher.
AIR DOME ELEMENTS
Duol high intensity metal halide lightning systems utilize the highly efficient optical reflectors to
provide maximum lighting uniformly on the playing surface.
The inner ambient of the dome is lighted by proper quantity of the halogen lamps in two different
modes: directly or indirectly.
At direct lighting the lamps are mounted on the membrane to give light on the sports field directly,
at indirect lighting the lamps are installed on the metal poles and light up.
LIGHTING SYSTEM
Benefits of DUOL lights technology:
High optical efficiency
Highly durable, low maintenance
Energy efficient
Eco-friendly
Natural spectrum light
Hit, dust and moisture resistant
In order to maximize the amount of light in the
dome, we design our lighting system to reflect
off of the curved dome surfaces and bounce
back to the floor. The key is the highly
reflective fabric liner which was specially
formulated for need of reflectivity.
LIGHTING SYSTEM
Duol’s innovative DuoLedTM lights are ideal solutions for all sport areas,
environments and conditions - from single tennis court to football stadium
and everything in between.
In addition to the huge savings in electricity, DuoLedTM also offer
significant savings due to reduced maintenance and replacement costs
thanks to Led’s durability and longer lifespan.
LED LIGHTS
We replaced the “traditional” lighting with DuoLedTM. Previously, the power consumption was higher
than 5 kWh and the average illumination was not satisfactory. The old lights were close to end of
life cycle and seldom exceeded 200 Lux on the ground. By adopting the DuoLedTM, tennis court is
now using less than 2,5 kWh with over 350 Lux average lighting and remarkable uniformity.
Advantages of DuoLedTM:
- High uniformity and energy saving (between 50 and 75%)
- Reduced glare, particularly during smash/volèe
- Solid State Components (high resistance to accidental damages)
- Life cycle higher than 50.000 hours, against the average 8.000,
- Lower maintenance cost
- Greater consistency in light delivery over the time
- No warm up time, instant light up
- No emission of UVA and UVB rays, doesn’t contain hazardous substances
- IP65 certified for outdoor use
LED LIGHTS
The higher investment costs of
DuolLedTM (blue line) is repay in two
and a half years on average (time
depends on local electricity price
and on lights usage per day).
It is many possibilities, how to connect the membrane to the
concrete beam.
The rings with peg crossed by a metal tube or grounding anchor
with metal tube are used for temporary assembling – seasonal
use of the dome.
For permanent assembling the anchoring is done by metal profiles.
The anchors are mounted in to the concrete beam in a distance 1m,
around the perimeter.
The anchoring in some situation could be done also by auger
anchors, without any concrete foundation. Auger anchors are
grounded directly to the ground in the depth of 2mt.
With DUOL advanced anchorage system air loss around the base
perimeter is greatly reduced, providing savings on inflation.
ANCHORING SYSTEM
ANCHORING SYSTEM
PIPE SYSTEM
Small to medium domes
Fast installation/dismantling
ANCHORING SYSTEM
L OR U PROFILES SYSTEM
Medium to big size air domes
Perfect tightness
DUOL anchorage system is design to leave no
protrusions above grade when the structure is
removed.
ANCHORING SYSTEM
ANCHORING SYSTEM
The membrane can be anchored in the concrete beam also with use of ground anchors, directly
into existing ground.
For large air structures and many seasonal
structures, it is desirable to limit the size of a
single section of the fabric envelope. A series of
long aluminum or wooden bars create an air and
water tight flexible seal that is covered by heavy
duty fabric to eliminate leaks.
SECTIONAL RECONNECTION
Revolving Doors are specially
built to withstand the building
pressure pushing in both
directions on the panels without
fatigue failure. Brush seals
minimize air losses while
maintaining smooth operation.
The doors include large glass
panels to see other users, and
the housing is made from
maintenance free aluminum.
REVOLVING DOOR
One unique feature of air structures is their doors which are specifically designed for the continuous
positive pressure environment. There are three main types of doors used in air structures: Revolving
Doors for normal entry into the dome, Pedestrian Doors and Emergency Exit Doors.
Pedestrian Doors are used
for wheelchair access, for
hand-truck deliveries and
they are suitable as
entrance for disabled
people.
Two doors are built in a
frame with a short
connecting tunnel creating
an airlock system, thereby
maintaining the building
pressure and minimizing air
loss. The frame and doors
are also built from
aluminum for long life and
include vision panels for
safety.
PEDESTRIAN DOOR
The primary purpose of
emergency door is to give an
emergency means of egress.
Standard dimensions are
143cm x 220cm. The frame
and the door leaf are made by
metal construction. The door
leaf has small circle window.
EMERGENCY DOOR
Large equipment such as trucks can be brought into air structures by the use of a transport
tunnel. Two large overhead doors at each end of the tunnel are interlocked so that only one
door may be open at a time.
Transport tunnels use high strength doors and are available with remote control switches and
key locks. The roof of metal construction is covered by polyester fabric coated with PVC foil.
Walls of the tunnel are closed by metal sheets.
TRANSPORT TUNNEL
Although the air structure fabric is translucent, it is not transparent. Even so, windows are an
optional feature.
WINDOWS
Air structures can be attached to other buildings in a variety of ways.
CONNECTING OPTIONS
If the need arises for a larger facility, expanding or modifying an air structure is a simple
procedure and can be accomplished with a minimum of disruption. Our dome can be shortened,
prolonged or relocated at any time, even doors, tunnels and connections to buildings can be
added additionally.
Dividing curtain splits your exercise area into more units.
DIVIDING CURTAINS
AIR DOME PERSONALIZATION
DUOL air domes has possibility to place
advertisements/symbols of comunity/logos on air dome. They
can be various sizes and colors.
CUSTOM DESIGN
SAFETY VIEW
The air supported structure is an autonomic object, means in emergency situation it is
maintained by itself. Emergency heating unit provides the stability of the dome in a time of
blowing unit default or in a case of electricity break-down.
Each dome is equipped with certain number of emergency exits according to the dimension and
purpose of the dome. Fabric is fire-retardant and all mechanical equipment meets standards.
Unique structural design of air dome allows to stand heavy wind and snow loads and unlike
conventional buildings, there is less danger of collapsing debris in an earthquake.
ENERGY AUTONOMY
SEISMIC SAFETY
WEATHER RESISTANCE
APPROVED AND VERIFIED CALCULATIONS
SAFETY DESIGN AND PLANNING
AIR DOME ADVANTAGES
WeCare
At DUOL, we strive to reach the highest level of quality in our business
and we aim to make sure that your decision in choosing an air dome
would be easier as possible.
WE CARE ABOUT OUR CLIENTS.
WeCare is a concept specially developed with our clients in
mind. Quite simply, our goal is to make to more transparent to choose
correct solution of air supported structure – even if you will not buy it
from DUOL.
Responsibility beyond the doors of DUOL Company – the WeCare
concept is also caring about what goes on beyond our company doors.
We invest a lot of time and resources in developing new technical
innovation, as well as finding future green oriented, client-friendly
solutions for all levels of our operations.
WeCare is our promise to you, that you will get from us best
product, designed to your need exclusively.
WeCare