knauf sound insulation – system solutions for all classes

Knauf sound insulation – system solutions for all classes

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Sound insulation

Sound insulation in residential buildings

Systematic sound insulation

From F to A* – the right sound insulation class for all demands

DIN 4109 – caution stumbling block! The German

Federal Court has specified in two rulings that DIN

4109 has lost its contractual significance for sound

insulation in residential buildings.***

Architects, specialised companies and specialist

dealers therefore have to respond even more sensi-

tively to sound insulation requirements and in case

of reservations bring higher quality solutions into

play. This is the only reliable method to exclude war-

ranty claims later on.

The “DEGA Deutsche Gesellschaft für Akustik e.V.“

(German society for acoustics) has defined seven

sound insulation classes. These can be used to pro-

vide extensive high-quality consulting services.

Knauf offers sound insulation solutions for all

classes. Our innovative systems provide a clear ad-

vantage against solid-wall concepts. Despite lower

wall thicknesses they provide identical or better pro-

tection against noise.

Knauf – your competent partner in the

field of sound insulation!

Sound insulation between adjacent residential units

Comparison of sound insulation between solid construction and drywall system

Built state R‘w , r < 50 dB ≥ 50 dB ≥ 53 dB** ≥ 57 dB** ≥ 62 dB** ≥ 67 dB** ≥ 72 dB**

Knauf sound insulation systems*

W112Knauf GKB

CW 50Rw,r = 50 dB

W112Knauf GKB

CW 100Rw,r = 53 dB

W112Knauf Piano

CW 100Rw,r = 56 dB

W112Knauf Diamant

CW 100Rw,r = 60 dB

W112Knauf Diamant/

Knauf SilentboardCW 100

Rw,r = 65 dB

W112Knauf Silentboard

MW 100Rw,r = 70 dB


MW 100Rw,r = 74 dB

D = 150 mm D = 240 mmD = 200 mm D = 300 mm D = 260 mmD = 233 mm D = 430 mm

Solid constructionFlanking components Min. 300 kg/m3 RDK 1.8 – 2.0 plastered

D = 100 mm D = 150 mmD = 150 mm D = 150 mm D = 150 mm D = 150 mm D = 175 mm

2_3

*** “Bauvertragsrecht“ 117 (Building contractual law 117), Sound insulation in residential buildings and DIN standards, 2. Sound insulation in residential buildings

* The drywall constructions shown can attain the sound insulation classes to DEGA Recommendation 103 if transmission of the sound along secondary routes is also correspondingly low.

** A double metal stud partition using System W115 is recommended as a separating measure (structure-borne sound) for the concrete application “Residential partition wall“.

***Sound Transmission Class (or STC) is an integer rating of how well a building partition attenuates airborne sound.

Email: [email protected]

Your direct contact to us!

Gut zu wissenGut zu wissenIn accordance with the decisions taken

by the German Federal Court, DIN

4109 is to be regarded as the generally

accepted rule of technology solely with

regard to protection against unaccepta-

ble noise pollution, but not for sound in-

sulation in residential buildings.

Issue 117, “Bauvertragsrecht“

(building contractual law)

Good to know

EF D C B A A*Sound insulation class

Walls [R‘w]

International STC classification***

< 50 dB ≥ 50 dB ≥ 53 dB ≥ 57 dB ≥ 62 dB ≥ 67 dB ≥ 72 dB

46 50 54 59 60+ 72

Playing children Generally not audibleClearly audibleVery clearly audible Audible Still audible

Normal music / domestic appliances

Generally not audibleVery clearly audible Clearly audible Audible Still audible

Normal speechCannot be

understood generally, partially audible

Can be clearly understood,

clearly audible

Can be understood partially,

generally audibleCannot be understood, not audible

Cannot be understood, still audible

Loud speech Can be clearly understood, very clearly audibleCan be clearly

understood, clearly audible


generally audible

Cannot be understood generally,

partially audible


Cannot be understood, not audible

Loud music Very clearly audible Audible Still audibleClearly audible

Sound insulation


Systematic sound insulation

From F to A* – the right sound insulation class for all demands

DIN 4109 – caution stumbling block! The German

Federal Court has specified in two rulings that DIN

4109 has lost its contractual significance for sound

insulation in residential buildings.***

Architects, specialised companies and specialist

dealers therefore have to respond even more sensi-

tively to sound insulation requirements and in case

of reservations bring higher quality solutions into

play. This is the only reliable method to exclude war-

ranty claims later on.

The “DEGA Deutsche Gesellschaft für Akustik e.V.“

(German society for acoustics) has defined seven

sound insulation classes. These can be used to pro-

vide extensive high-quality consulting services.

Knauf offers sound insulation solutions for all

classes. Our innovative systems provide a clear ad-

vantage against solid-wall concepts. Despite lower

wall thicknesses they provide identical or better pro-

tection against noise.

Knauf – your competent partner in the

field of sound insulation!

Sound insulation between adjacent residential units

Comparison of sound insulation between solid construction and drywall system

Built state R‘w , r < 50 dB ≥ 50 dB ≥ 53 dB** ≥ 57 dB** ≥ 62 dB** ≥ 67 dB** ≥ 72 dB**

Knauf sound insulation systems*

W112Knauf GKB

CW 50Rw,r = 50 dB

W112Knauf GKB

CW 100Rw,r = 53 dB

W112Knauf Piano

CW 100Rw,r = 56 dB

W112Knauf Diamant

CW 100Rw,r = 60 dB

W112Knauf Diamant/

Knauf SilentboardCW 100

Rw,r = 65 dB


MW 100Rw,r = 70 dB


MW 100Rw,r = 74 dB

D = 150 mm D = 240 mmD = 200 mm D = 300 mm D = 260 mmD = 233 mm D = 430 mm

Solid constructionFlanking components Min. 300 kg/m3 RDK 1.8 – 2.0 plastered

D = 100 mm D = 150 mmD = 150 mm D = 150 mm D = 150 mm D = 150 mm D = 175 mm

2_3

*** “Bauvertragsrecht“ 117 (Building contractual law 117), Sound insulation in residential buildings and DIN standards, 2. Sound insulation in residential buildings

* The drywall constructions shown can attain the sound insulation classes to DEGA Recommendation 103 if transmission of the sound along secondary routes is also correspondingly low.

** A double metal stud partition using System W115 is recommended as a separating measure (structure-borne sound) for the concrete application “Residential partition wall“.

***Sound Transmission Class (or STC) is an integer rating of how well a building partition attenuates airborne sound.


Your direct contact to us!

Gut zu wissenIn accordance with the decisions taken

by the German Federal Court, DIN

4109 is to be regarded as the generally

accepted rule of technology solely with

regard to protection against unaccepta-

ble noise pollution, but not for sound in-

sulation in residential buildings.

Issue 117, “Bauvertragsrecht“

(building contractual law)

Good to know

EF D C B A A*Sound insulation class

Walls [R‘w]

International STC classification***

< 50 dB ≥ 50 dB ≥ 53 dB ≥ 57 dB ≥ 62 dB ≥ 67 dB ≥ 72 dB

46 50 54 59 60+ 72

Playing children Generally not audibleClearly audibleVery clearly audible Audible Still audible

Normal music / domestic appliances

Generally not audibleVery clearly audible Clearly audible Audible Still audible

Normal speechCannot be

understood generally, partially audible

Can be clearly understood,

clearly audible


generally audibleCannot be understood, not audible


Loud speech Can be clearly understood, very clearly audibleCan be clearly

understood, clearly audible


generally audible

Cannot be understood generally,

partially audible


Cannot be understood, not audible

Loud music Very clearly audible Audible Still audibleClearly audible

≥ 50 dB

E

< 50 dB

F

The sound insulation value is increased by 3 dB when the

Knauf Wallboard is used and by doubling the cavity depth

and integrating thicker insulation.

The economic solution for basic systems


The Knauf Wallboard is the right solution whenever no parti-

cular requirements are placed on sound insulation and a fa-

vourable price-performance ratio is desired.

The classic in drywall systems

4_5

≥ 50 dB< 50 dBNormal speech can be clearly under-

stood, clearly audible.

W112 with Knauf Wallboard �� Flexible drywall construction

�� Board type Knauf Wallboard

DIN 18180 GKB

EN 520 A

�� Delivery form

Gypsum board GKB 12.5 mm:

1,250 x 2,000 mm &

1,250 x 2,500 mm

Further formats on request

Normal music is very clearly audible.

W112 with Knauf Wallboard �� Slim partition for standard

sound insulation

�� Board type Knauf Wallboard

DIN 18180 GKB

EN 520 A


Board thickness 12.5 mm

1,250 x 2,000 mm &

1,250 x 2,500 mm


≥ 57 dB

C

≥ 53 dBSound insulation to DIN The high-quality sound insulation solution

The W112 system with CW Stud and the Knauf Piano sound

insulation board fulfils the requirements of DIN 4109. The use

of Knauf Piano instead of the Knauf Wallboard increases the

sound insulation by 3 dB at the same wall thickness (150 mm).

Knauf Diamant not only increases the sound insulation perfor-

mance, but is furthermore extremely robust, suitable for areas

of high humidity and thanks to its fire protection quality ideal

for fire protection requirements. Best price-performance ratio

for the realization of ambitious residential objects.


Normal speech cannot be understood,

partially audible. Playing children are

clearly audible.

W112 with Knauf Piano�� Flexurally ductile special core of the

board for sound insulation to DIN

�� Board type Knauf Piano

DIN 18180 GKB

EN 520 D



1,250 x 2,000 mm &

1,250 x 2,500 mm


5_66_7

≥ 53 dBNormal speech cannot be understood

(still audible). Domestic appliances are

clearly audible.

W112 with Knauf Diamant �� Universal usage

�� Increased anchor loads

�� Board type Knauf Diamant

DIN 18180 GKFI

EN 520 DFH2IR


Board thickness 12.5 mm &

Board thickness 15 mm

Each 1,250 x 2,000 mm &

1,250 x 2,500 mm


≥ 57 dB

D

≥ 67 dB

A

≥ 62 dB

B

Sound insulation plus For highest demands

The 150 mm thick wall is upgraded by 5 dB with the combina-

tion of Knauf Silentboard and Knauf Diamant. This wall struc-

ture is always the first choice when slim structures with maxi-

mum sound insulation are required.

The Knauf Silentboard sound insulation board in combination

with the Knauf MW Stud provides sound insulation at the very

highest level. The special resilient effect of the profile produces

a sound-insulating structure additionally.


8_9

Normal speech cannot be understood or

heard. Loud speech cannot be under-

stood, partially audible.

W112 with Knauf Silentboard

and Knauf Diamant �� Special gypsum core for maximum

sound insulation

�� High performance capacity in

low-frequency range

�� Board type Knauf Silentboard

DIN 18180 GKF

EN 520 DF



625 x 2,000 mm &

625 x 2,500 mm


�� Board type Knauf Diamant, see Page 7

≥ 62 dBNormal speech cannot be understood or

heard. Loud music is audible.

W112 with Knauf Silentboard �� Reliable sound insulation

through decoupling


DIN 18180 GKF

EN 520 DF



625 x 2,000 mm &

625 x 2,500 mm


≥ 67 dB


10_11

≥ 72 dBHigh-end sound protection at wall thicknesses below 180 mm.

A sound insulation value of Rw,r = 74 dB is achieved through

an additional layer of Knauf Silentboard without increasing

the wall thickness notably. Knauf Silentboard is always the

right solution, whether in new buildings or when upgrading

existing structures.

The Knauf sound insulation calculator allows you to calculate the resulting sound insulation (R‘wR) of Knauf

wall systems rapidly and easily and thus to check whether your requirements for sound insulation are fulfilled.

Knauf sound insulation calculator – sound insulation calculated with ease!

Superlative sound insulation

Call up www.knauf.de/schallschutzrechner *)

Select the building and component

Select the Knauf components to be used

The required sound insulation is calculated

on the basis of your specifications

Just a few easy steps:

1.

2.

3.

4.

Loud speech cannot be understood or

heard. Loud music is still audible.

W113 with Knauf Silentboard �� Best shielding against

deep frequencies

�� Optimum living comfort


DIN 18180 GKF

EN 520 DF



625 x 2,000 mm &

625 x 2,500 mm


≥ 72 dB

Calculatenow!

www.knauf.de/

schallschutzrechner

A*

*) Calculator currently available in German only

Knauf Direkt


www.knauf.com

SS2/engl./D/09.13 /RO/D

Subject to technical modifications. The latest issue respectively is valid. Our warranty

only covers the flawless quality of our material. Constructive, static and structural-

physical properties of Knauf systems can only be achieved if the sole use of Knauf

system components or of products recommended by Knauf is ensured. Consumption,

quantity and implementation specifications are values based on experience that

cannot be applied automatically in the case of deviating circumstances. The specifi-

cations made conform to our current state of the art. It cannot, however, contain the

cumulative state of the generally recognised rules of building technology, relevant

standards, directives, guidelines and artisanal rules. These have to be observed cor-

respondingly by the person implementing in addition to the processing rules. All

rights reserved. Modifications, reprints and photomechanical as well as electronic

reproduction, also in extracts, require the express written permission of Knauf Gips

KG, Am Bahnhof 7, 97346 Iphofen, Germany.

Supply through the specialist trade in accordance with our General Terms and

Conditions of Sales, Delivery and Payment respectively valid.

Knauf Gips Drywall SystemsPlaster and Façade Systems Floor Systems

Knauf Insulation Rock Wool, Glass Wool and Wood Wool Insulation

Knauf Integral Gypsum Fibre Technologyfor floor, wall and cover

Knauf AQUAPANEL AQUAPANEL® Cement BoardTecTem®, Insulation Bulk Levellers

Knauf PFT Machine Technology and Plant Engineering

Knauf Gips KGAm Bahnhof 797346 IphofenGermany

Knauf AMFCeiling Systems

Knauf Bauprodukte Professional DIY Solutions

Knauf Dämmstoffe Polystyrene Rigid Foam Insulation

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Marbos Mortar Systems for Stone Pavements in Civil Engineering

Sakret Bausysteme Dry Mortars for New Projects and Renovations


knauf sound insulation – system solutions for all classes

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