Building Acoustics
Effectively Protecting People
from Unwanted NoiseSound control for a better
quality of life and work

Optimised product characteristics
for audible reduction in noise

A high degree of planning reliability
thanks to proven effectiveness1 Noise and its Effects

Sound control solution from Getzner at theOslo Opera House

Peace and quiet is a basic
human need, especially in
our fast-moving times.
We all needpeace and quiet
Noise is a constant presence inour modern world and its negativeeffects can be felt throughout ourenvironment. As a consequence,sound control is becoming evermore important and taking a keyrole in the building and constructionindustry.

Sound control solutions from GetznerGetzner has been offering specificsolutions to isolate sound sources andprevent sound transmission for morethan four decades. Applications range
from elastic bearings on ventilation
units to impact noise protection inbuildings.

T

he detrimental effects of noise in
our day-to-day lives may be experienced in many different ways: It canbring about stress, concentration problems and even cause chronic illness.
When people are able to withdraw
from the world to a place where peaceand quiet reigns, they are more attentive, more relaxed, more able to copewith the challenges of daily life and,evidence has shown, are more healthy.
Sources of noise in everyday life
Noise in buildings is produced by airborne noise or structure-borne stimuli.
These stimuli are produced by people
speaking, music, walking across floors
or up and down stairs (impact noise)or through the operation of building service installations (wastewater
systems, energy supply and heating
systems, ventilation and air conditioning units, lifts, powered doors, etc.).
If suitable measures are not implemented, the sound may be transferredto adjoining rooms through the building structure causing noise nuisance.

Sound control solutions from Getzner bring peace and quiet

32 How Sound Transmission
Works

Airborne noise

Different types of soundtransmission
Airborne noise

Impact noise

Noises, such as music or people speaking, cause the air to vibrate and thesevibrations propagate in the form ofwaves, indirectly exciting components
such as the walls and ceiling. These
components then radiate noise thatcan be heard in adjoining rooms.

Impact noise is a special form ofstructure-borne noise, which is generated by walking, moving or dropping objects directly into the ceilingor stairs. Secondary airborne noiseradiates into adjoining rooms.

To determine the airborne noise insulation of a component, such as a wallor the ceiling, this excitation is generated deliberately.
Structure-borne noise
If vibrations are generated in the building structure itself – for example, due
to water pipes in a wall, hammering or
drilling or household appliances – thisis referred to as structure-borne noise.

4To determine the impact noise insulation of a component, a standard hammer is used to deliberately excite thecomponent.
Transmission of sound through­flanking­elements
Components must always be considered in combination with the building
system. A proportion of the sound istransmitted through what are known
as flanking components. Doors, shaftsor ceiling ducts may act as transmission paths for sound. The perceived
noise level always depends on the interaction of all transmission paths.

Structure-borne noise

Impact noiseSound control solutions from GetznerGetzner develops and markets
solutions to protect against structureborne and impact noise and its transmission. The product range from thesound control experts is made up ofSylomer® and Sylodyn®, both of which
are elastic, microcellular materials,and Isotop® products. The products
and systems decouple floors, ceilings, walls, stairs and building service
installations.
Getzner ensures that noise and vibrations do not freely propagate andmakes a significant contribution to abetter quality of living.

Our solutions:Your­benefits­— Targeted reduction in noise fora high standard of comfort— Increased quality of life
and work due to optimum
insulation effect— Sound control adds value toresidential apartments andbuildings— Long-term, durable andpioneering soundproofing
solutions— A high degree of planning
reliability thanks to proveneffectiveness5

3 Product Overview

Overview of areas ofapplication and products

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61

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Sylomer ® and Sylodyn®
PU materials

1

Elastic bearing of building
service installations

2

Floating floors

3

Elastic ceiling hangers

4

Elastic suspension of pipes

5

Elastic bearing of stairs
and landings

6

Separation of adjacentcomponents (flankingsound)

Isotop® spring isolator

Tried and tested materials
and products
Sylomer® & Sylodyn®
Our polyurethane materials Sylomer®
and Sylodyn® developed in our own
laboratories and manufactured inhouse are suitable for universal use,deliver maximum isolation performance and have proven themselves
time and again under a range of conditions in various installation locations.
They are used as bearings for floors,stairs, landings, machine foundations,to decouple ceilings and as dry lining
as well as in timber construction.

Product­benefi­ts— Long service life
— Maintenance-free— Simple integration into theconstruction process— Specifically designed to meetdifferent building acoustics
requirements

Isotop® elements
Isotop® products are isolators that,depending on the requirements of theapplication, are produced in combination with Sylomer® and Sylodyn®.
They are mainly used for low-frequency bearing of building service
installations.

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4 Solutions in Detail

Using the Getzner Acoustic Floor
Mat enables a rate of impact noise
reduction of 33 dB

Elastic bedding of floors— Excellent impact noise insulation effect for all floor construction types (dry and wet screeds)— Rate of impact noise reduction
up to 33 dB— Low installed height— Full-surface or point bearings
possible— Quick and easy to install— Stable material properties overentire service life
— Monitored quality— Safety approved for planners anddevelopers— Free from softeners and pollutants— Load capacity of up to 5 t/m2

1 Structure of an elasticallydecoupled floor in a fitness
centre2 Installation of dry panels
directly on top of the Getzner
Acoustic Floor Mat
3 Sylomer ® discrete bearingsin construction projects withdemanding sound control
requirements (theatre, opera,cinema, recording studios, etc.)
4 Acoustic Floor Mat product range
1Products:— Acoustic Floor Mat— Acoustic Floor Blocks— Sylomer®

Find out more at
www.getzner.com/fl­oors
2

8

3

4

Easy to cut to size and adjust to thebuilding conditions.

Mounting of staircases
and landings— Proven rate of impact noise reduction of 31 dB— Bearing types for wood, steel and concrete steps— Rapid installation due to flexible design— Targeted load transmission— Minimal settlement behaviour

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1 Stair base brackets made ofSylomer ® are used on lightweight stairs to prevent thenoise of people going up anddown being transferred toadjoining apartments andcausing noise nuisance.
2 The Getzner SB10 bearing forstairs is suitable both for use
in precast
3 and in-situ concrete stairs.

3Products:— Stair Bearing SB10
— Sylomer®

Find out more at
www.getzner.com/stairs

9Spring hangers for suspended
ceilings with a low natural
frequency

Dry lining decoupled with Sylomer ®
for high damping efficiency

Decoupling of suspended
ceilings and dry lining— Noise reduction index that is— Allows for a reduction in the
4 dB* higher than standard
number of dry linings with theattachment systems
same damping efficiency— Effective even in the low— Products for various loadfrequency range 50 – 250 Hz
ranges— Simple to install— Minimal suspension height— Suitable for all dry construction * results from test report no.
B0082-IN-CM-26-M57, B0082-IN-CM-26-M51
systems

1

1 Greater noise reduction index for elasticallydecoupled ceilings
2 Suitable for renovation
projects involving apartment
ceilings and for new buildings, ranging from theatresto opera houses

2Products:— Acoustics+Sylomer®
— Isotop®

Find out more at
www.getzner.com/interiors

10Air conditioning (AC) systems beddedon Isotop® SE elements.

Sylomer ® discrete bearings for aheat pump

Elastic bedding of building
service installations— Natural frequencies of up to
3 Hz can be achieved— Simple to install— Elements for various installation heights and load ranges— More than 40 years of experience working with lift builders
and equipment manufacturers

1

Application areas:— Air conditioning (AC) systems— Combined heat and powerplants (CHP plants)— Heat pumps— Water chillers— Cooling towers— Pumps— Pipes— Lifts

3

1 Structurally strong bearingof pumps with Isotop® DZEelements
2 Structure-borne noise
protection for lifts: maintenance-free Isotop® SE-DE
Elevator and Sylomer ®
3 Decoupling of pipes usingIsotop® ceiling hangers
2Products:— Isotop®
— Sylomer®
— Sylodyn®

Find out more at
www.getzner.com/equipment

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4 Solutions in Detail

Elastic flank decouplingin timber construction

Sound control in timberconstruction— 14 dB* improvement in airborne andimpact noise— Low installed height— Minimal settlement behaviour— Effective decoupling of flanking
components— Approved materials and fasteners* results from test report no. 1228.60 – 1228.88

11 Sylodyn® linear support aboveand below the raw ceiling canbring improvements in thestandard D'nTw sound level andin the L'nTw impact noise levelof 14 dB*.
2 Elastically decoupled screws
and angle brackets prevent
sound bridges forming.
3 Timber modules on Sylomer ®

23Products:— ABAI 105 angle brackets— Sylodyn®

Find out more at
www.getzner.com/timber

125 Calculation ExpertiseGetzner has developed a numberof calculation tools to help whenplanning and implementing solutions.

Expert advice andcalculations

The experts at Getzner advise andsupport engineering consultancies,
architects and construction physicists
to develop specific solutions – evenfor the most challenging construction
projects.

Specialised services fromengineers

Getzner sound control solutions aretested on in-house and external test
rigs to identify application options andto test their suitability in daily use. The
results of these tests are then used tofurther develop and improve the product range.

1— Special calculation tools— Bespoke, project-specific solutions— Professional consultancy services
from experienced specialists— Skilled, efficient projectmanagement— Network of established professional planners and engineersfrom external agencies
2

3

1 SweepCalc-Tool:
design tool for objects withcomplex load distribution
2 FreqCalc-Tool: online
calculation program forproduct design
3 TimberCalc-Tool: online
calculation program fortimber construction designs

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6 References

Tama Art University

1

Porsche Museum, Stuttgart

Red Bull Music Academy, Tokyo

Building acoustics solutions fromGetzner are being used successfully
all over the world.

Impact noise protection measures (extract)— Cité Musicale de l’île Seguin (music venue),
Boulogne-Billancourt, FR— Berlin State Opera, DE— Yash Raj Studio, Mumbai, IN— JW Marriott - Juhu Beach Resort, Mumbai, IN— Management School, Bordeaux, FR— First Campus - atrium floor, Vienna, AT— Hotel “Bayerischer Hof”, Munich, DE— Landeskrankenhaus Graz (hospital), AT— Knorr Bremse (manufacturer of braking systems),
Munich, DE— Fitness studio, Tottenham Court Road, London, GB— Gym, Covent Garden, London, GB— Hotel Alte Post, Arzl, AT— Police Headquarters Graz, AT— Oslo Opera House, NO— Warsaw Spire, Warsaw, PL

Acoustic measures in dryconstruction (extract)— Red Bull Music Academy, Tokyo, JP(box-in-box solutions)— Courtyard Marriott, Mumbai, IN(box-in-box solutions)— Swami Narayan Mandir, private prayer room,
Mumbai, IN (box-in-box solutions)— Paris Philharmonic Hall, FR— Suntwerk Boulderhalle, decoupling of a climbing
wall in Cologne, DE (dry lining)— Caixa Forum, Zaragoza, ES (elastic ceiling hangers)— Royal Olympic Hotel, GR (elastic ceiling hangers)— Karate Training Hall, Tokyo, JP(elastic ceiling hangers)— Sula Planet, Ibiza, ES (elastic ceiling hangers)— Tama Art University, JP (elastic ceiling hangers)

Building acoustics solutions intimber construction (extract)— Kampa AG Innovation Centre, Aalen-Waldhausen, DE— Nuremberg Riot Police, Nuremberg, DE— Maschinenring office building, St. Johann im Pongau, AT— Retirement home, Hallein, AT— “Treet”, 14-storey apartment building, Bergen, NO— CROUS de Nantes, five four-storey student residences,Nantes, FR— Rhein-Palais-Bonner-Bogen Quarter, Bonn, DE— Mama Thresel, Hotel, Leogang, AT— Morbach nursery, DE— Neuendettelsau school of nursing, DE— “Wohnen im Park” apartment building, Mondsee, ATBearing for building services
installations (extract)— JW Marriott Hotel, Pune, IN— Mercedes Museum Stuttgart, DE— Brüder Grimm-Museum, Kassel, DE— Porsche Museum Stuttgart, DE— Oslo Opera House, NO— Cologne Opera House, DE— Airrail Center – Frankfurt Airport, DE

1 image source: Red Bull, Dan Wilton / www.redbullcontentpool.com

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