why_duol

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


Dinamo Volgograd Hockey arena Sochi

FC Kontu FC Turku


Copenhagen Trondheim

Brussels Food processing plant air domes


EXPERIANCES IN ALL SPORTS

FOOTBALL

TENNIS


POOLS


HOCKEY


MULTISPORT


HANDBALL


GOLF


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.

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.


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.


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.


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.


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.


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.


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

why_duol

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