Where sound is a science and silence is an off-the-shelf item

LindabAcoustics

l indab | we simplify construction

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A comfortable indoor climate should

be a human right! It is better for us, we

work better and perform better when

the air around us is clean and fresh.

The right temperature, an acceptable

CO2 level and the correct humidity are

essential. But what about the indoor

climate’s fourth dimension: Sound?

Sound is the indoor climate’s

fourth dimension

We are surrounded by noise and

constant disturbance in our everyday

life. Silence is becoming a luxury.

Therefore, good acoustics and a

low noise level are critical to the

indoor climate, in the same way that

temperature, CO2 and humidity are.

A ventilation system is necessary to

ensure a good indoor climate, but it

is also a paradox, because such a

system is noisy. Fresh air, but more

noise. It doesn’t have to be like that.

We are researching sound and

deliver silence

If your ventilation system is designed

correctly and has the proper

dampening you can avoid nuisance

noise. Over decades of research

and development in our own sound

laboratory, Lindab has gained

extensive knowledge and experience

in acoustics and its important role in

open-plan offices, industrial buildings

and other places where many people

must work and live together. We

are researching sound to deliver

solutions that provide peace and

quiet. It completes your ventilation

system and makes Lindab your

complete supplier.

Decades of research and

development in, among other

places, our own sound labora-

tory, has made Lindab experts

in acoustics and noise reducti-

on of ventilation systems.

Everyone has the right to a quiet and comfortable indoor climate

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Silence can be a prerequisite

for optimum performance.

A good indoor climate is a

prerequisite for good working

conditions. This is especially

true in large rooms where many

people work togheter.

However, a good indoor climate

is more than fresh air at the

right temperature, humidity and

CO2 levels. Indoor climate’s

fourth dimension is sound, and

at Lindab, we are experts in

minimizing the noise from your

ventilation system.

Lindab’s experts research noise

reduction and pass on their

knowledge and experience

when customers have to design

and size new ventilation sys-

tems for new construction and

renovation.

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A ventilation system is important to

ensure a good indoor climate with

fresh air. However, such a system

has many noise sources. Noise

from fans, dampers and other com-

ponents must be dampened if the

total indoor climate experience is

to be comfortable. Therefor there is

a need for silencers to ensure that

the acoustics also contribute to the

good indoor climate.

Less noise and less energy

consumption

It’s more than about reducing the

noise. With the range of products

that are the result of Lindab’s

research and development, you can

also reduce your costs and your

energy consumption. Pressure loss is

an important parameter for the total

operating costs of your ventilation

system. Therefore, our solutions are

generally designed to reduce the

pressure loss as much as possible.

This applies to ducts, fittings, fixtures

and silencers.

Silencers for new construction

and renovation

If, for example, you are renovating

an existing system with Lindab

Aerodim™ and keeping the

dimensions, you can halve the noise

or reduce the pressure loss by up

to 40%. At the same time, energy

consumption will be considerably

lower. It’s good for the SFP value

Our research and development in

acoustics involves both developing

silencers and the materials

contained in them.

At Lindab, we update and

complement our extensive

knowledge of indoor climate and

ventilation by listening to them. In

reality, we are really working for our

customers. This also puts us in a

position to research and develop

new solutions based on specific

needs.

Keep the noise down – and the costs

Aerodim™ sound baffle The CFD simulation image on

the left shows the pressure loss

profile for Aerodim™ with a sig-

nificantly lower pressure loss

than the conventional silencer.

Conventional sound baffle The CFD simulation image on

the left shows the pressure

loss profile of the conventional

sound baffle available on the

market today.

See video clips of CFD simulations at www.lindab.com/aerodim

The dimensions of conventional silencers make it necessary to fit transition

joints between the silencer and the duct system to allow for an acceptable

pressure drop.

With Lindab Aerodim™ transition joints are not required. Aerodim™ is

significantly smaller than conventional silencers, but just as easy to fit.

Aerodim’s ™ sound baffles are optimized in terms of pressure loss, so that it is

possible to keep the same dimension for silencers as for the duct.

Effective Aerodim™ reduces both dimensions and energy consumption

and the climate – both in the office

and in the accounting department.

Lindab has developed silencers in

many different dimensions for both

new construction and the renovation

of houses, offices and production

facilities. A common feature of the

solutions is that they reduce both

noise and costs.

An investment with more return

A good ventilation system provides

a good climate and it is a wise

investment both in terms of health

and economy. Healthier and happier

employees mean higher production

efficiency and effectiveness. With

the right products, the solution gives

the energy savings that also make it

a good energy investment.

Noise reduction of the ventilation

system is a crucial parameter for a

complete, healthy indoor climate.

Lindab develops and delivers silencers

in different dimensions and for all

systems.

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Your low noise solutionis our science

Lindab is a leading supplier of

a good indoor climate. We have

turned it into a science to ensure

fresh air in your building.

A wide range is not enough

It’s no good having the market’s

widest range if every single

product is not developed

through knowledge and tested

scientifically. Back in 1999,

Lindab built an advanced sound

laboratory that is unique in Europe.

Engineers here in our development

department are constantly working

on optimizing existing solutions

and developing new ones that can

reduce both the noise level and

energy consumption even more.

A science in itself

The laboratory in Farum, Denmark,

is built as a closed duct system. A

speaker room and a reverberation

room are connected by a measuring

duct, where we place test objects.

The lower floor is an air duct fitted

with silencers and a unique design.

The noise from the surroundings

and, for example, the fans is

totally eliminated. This allows us to

measure the reduction and noise

from the actual product and the test

results are scientifically sound.

The speaker room and the rever-

beration room are connected

by a 21 metre long measuring

duct. Depending on what has to

be tested, the measuring duct

can be adapted to be circular

or rectangular. There are many

possibilities.

Measurement method: All silencers

are tested in accordance with ISO 7235:

”Measuring ducted silencers and air-

terminal units – Insertion loss, flow noise

and total pressure loss”.

147-tonne test room, suspended on 32 vibration dampers

Silencer SilencerSilencer

Unit of measureReverberation

room Unit of measure

Speaker

Test object

Silencer

1 The reverbera-

tion room is secured

against vibration

and noise from the

environment.

2 The 147-tonne

test room is sus-

pended on 32

pneumatic vibration

dampers.

3 The ventilation

controls the air flow

with great precision.

4 The meas-

urements are so

precise that the

results can be used

scientifically.

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”The development manager is a professor of ventilation If you are to have the full benefit of the best possible facilities – such as

Lindab’s sound laboratory - it requires the best possible employees.

Lindab’s Development Manager, Göran Hultmark, is an excellent example.

For three decades his research work in the energy sector has led to 16

patents and 20 scientific reports, and now he has crowned his preliminary

work with the title of Adjunct Professor of ventilation at SBI / Aalborg

University, Copenhagen.

In recent years, Göran Hultmark’s work in energy systems, energy savings and

indoor climates has led to the development of new system solutions for the

ventilation of buildings.

The reverberation room has a

volume of 203 m³ and weighs

147 tonnes. The room is

suspended on 32 pneumatic

vibration dampers, so the

measurements are not affected

by vibrations and therefore noise

from the surroundings.

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At Lindab we are constantly working

to improve the efficiency of our

ventilation solutions and to make

it simple for you to implement

them in your construction project.

Our research and development in

acoustics involves both developing

silencers and the materials contained

in them.

Silencers with Lindtec® or Acutec®

are simple and effective

Through our research we have

developed, among other things, the

absorption materials Lindtec® and

Acutec®.

Lindtec® is a mineral wool and

Acutec® is a hygienic polyester in a

recyclable friendly material that with

its excellent damping properties

makes our silencers totally unique.

Acutec® is bacteria resistant

and does not bind moisture and

condensation, even at high pressure

in ducts and silencers.

Silencers with both Lindtec® and

with Acutec® have a surface that is

easy to clean and maintain.

MagiCAD© makes design easier

Lindab simplifies construction and

therefore we of course offer software

that helps you with the design.

With Lindab’s CADventPlugin for

MagiCAD© you have a well-equipped

toolbox for sketching, dimensioning,

calculating, counting, ordering and

presentation of complete HVAC

systems. The CADventPlugin makes

it possible to use in MagiCAD to

The absorption material in our

silencer with Lindtec® or with

Acutec® always has a surface

that makes the silencer easy to

clean and maintain.

Unique materials– exceptional software

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With Lindab’s special

software you can both

design and size your

complete ventilation

solution and make

professional sound

calculations for each room.

transfer the product specific project

from design straight to order

placement via Lindab web shop.

Professional sound calculation

with DIMsilencer

DIMsilencer is a user-friendly

programme that provides a quick

and professional sound calculation,

as well as an easy product

selection. The room module in

DIMsilencer makes it possible to

make sound calculations adapted

to the conditions in each room, and

you can make a complete system

calculation from complete system to

induvidual room. Data in DIMsilencer

is based on measured values

and the programme can be fully

integrated with MagiCad.

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Own production, wide range and many options

LINDAB’S PRODUCTION

Central production

Regional production

Lindab manufactures in our own factories in most of Europe. This means that we can respond quickly, effectively and goal-orientated if you need a special solution that is outside our otherwise wide standard range. Your special order can typically put into production the day after the order and delivered a few days later. We call it availability.

Standard solutions

We are also experts in difficult solutions

At Lindab you will find a complete range of thoroughly tested components for any ventilation solution.

Our experienced experts, professional sound laboratory and years of experience guarantee quality.

You can see the whole range at lindab.com. If you have special requirements and needs that go

beyond the standard range, we can also fulfil them. Thanks to our international status, we can quickly

and efficiently produce customized solutions across most of Europe.

SLGU 100 / SLGU 150 SLGPU 100 SDI / SDO

BSLCU 50 / BSLCU 100

KVDP - 90 K

KVDP - 90 L

LRCB KVDPLRCA

SLU 50 / SLU 100

SLKNU 50 / SLKNU 100 SLFA 25 / SLFA 50 SLF

LVT

SLRS LNTSLRB

Lindab – we simplify construction

Lindab simplifies construction by developing and manufacturing quality products and solutions.

We will always be our customers’ preferred suppli-er of ventilation and construction components, and therefore our work is always based on four key-words: Knowledge, Trust, Range and Availability.

This makes us a competent and versatile supplier who always puts the customer’s needs and re-quirements first.

At Lindab, all 4400 employees in 32 countries think in terms of order and clarity in all situations. We are down-to-earth and we are always working for our customers’ success.

www.lindab.com