1

Sound impact & airborne insulation

The acoustic in building

Job-site surveys

Machinery and plant insulation

Our products

Services

Something about the competition

Table of contentsTable of contents

SOUND INSULATION IN CIVIL BUILDING

2

Sound impact insulation

To reduce the impact noise heavy structure with high mass are not required but the basic concept

is the ELASTICITY of the system.

B

E

F

C

D

A

A Flooring finishing

B Screed

C dBred F10P roll

D Lightweight mortar type POLITERM BLU

E Slab

F Ceiling plastering finishing

3

Dividing wall composed of two hollow-bricks with inbetween a dbred W sound insulation panel

Mettere foto fatta in cantiere dai VVF

4

Disconnection with anti vibration pads or strips between wall and

floor

dBred strip dBred strip

5

D

E

A

C

B

A Wall plastering finishing

B Brickwall

C Plastering/gypsum board

D Panels type dBred W20

E Stripe type dBred F5

Air borne sound insulation

6

WALL COVERING FOR A BETTER ACOUSTIC INSULATION

B

D

E

F

C

A

A Gypsum board panel

B Existing wall

C dBred type W 10

D Rockwool

E Studs

F Stripe type dBred F5

7

FALSE CEILING FOR A BETTER ACOUSTIC INSULATION

A

B

C

D

EF

E

EF

G

A Slab

B Existing wall plastering

C Anti vibration hanger

D Rockwool / Polyester fibre

E Gypsum board

F dBred type W 10

G Perforated gypsum board

8

R'w = 53 dB

Frequency (Hz) Sh

ifte

d V

alu

es (

dB

)

R' S

pectr

um

(d

B)

100Hz 34 56125Hz 37 43160Hz 40 48200Hz 43 38250Hz 46 34315Hz 49 43400Hz 52 48500Hz 53 53630Hz 54 53800Hz 55 511kHz 56 58

1.25kHz 57 541.6kHz 57 602kHz 57 63

2.5kHz 57 643.15kHz 57 66

0,00

10,00

20,00

30,00

40,00

50,00

60,00

70,00

80,00

90,00

100,00

10

0H

z

12

5H

z

16

0H

z

20

0H

z

25

0H

z

31

5H

z

40

0H

z

50

0H

z

63

0H

z

80

0H

z

1kH

z

1.2

5kH

z

1.6

kHz

2kH

z

2.5

kHz

3.1

5kH

z

Frequency

Le

ve

l (d

B)

R' Spectrum

Shifted Reference Curve

Brickwall cm 12dBred W 20Brickwall cm 8

Wall type

JOB-SITE SURVEYJOB-SITE SURVEY

9

Floor sound impact insulation L’nTw = 58 dB

L'nTw = 58 dB

Frequency (Hz) Sh

ifte

d V

alu

es (

dB

)

Cal

cula

ted

Ln

T (

dB

)

100Hz 60 54

125Hz 60 63

160Hz 60 67

200Hz 60 63

250Hz 60 64

315Hz 60 59

400Hz 59 58

500Hz 58 56

630Hz 57 54

800Hz 56 50

1kHz 55 51

1.25kHz 52 53

1.6kHz 49 51

2kHz 46 50

2.5kHz 43 50

3.15kHz 40 48

0,00

10,00

20,00

30,00

40,00

50,00

60,00

70,00

80,00

90,00

100,00

10

0H

z

12

5H

z

16

0H

z

20

0H

z

25

0H

z

31

5H

z

40

0H

z

50

0H

z

63

0H

z

80

0H

z

1kH

z

1.2

5kH

z

1.6

kHz

2kH

z

2.5

kHz

3.1

5kH

z

Frequency

Le

ve

l (d

B)

LnT Impact Spectrum

Shifted Reference Curve

Brick&beams 20cm +4cm concreteLightweight concretedBred F10PScreedWooden parquet

Slab composition

10

Machinery vibrations insulationMachinery vibrations insulation

Realization of floating floors or floating plots installed on anti vibrations pads or panels prepared for that particular application.

Even all the connections tubes and wires have to be properly insulated when in contact with the existing building.

METTERE FOTO DI MACCHINARI VARI

11

OUR PRODUCTS

Floor Impact Sound Insulation

dBred Type F P

dBred Type F

12

dBred Type Fs

Perimetral Strips up to Finishing Floor Level

dBred Type Ff

13

Airborne Sound Insulation

dBred Type W

Vibrations Insulation

dBred Type V

14

dBred Service

-Free consultancy

-Project managment

-Product proposal

-Competition evaluation

-Job-site survey

-Computer situation rating

-Certificate release

- In-situ testing

-Quick manufacturing

-Good logistics

15

COMPETITION

POLYETHYLENE

ADVANTAGES

Price

Availability

DISADVANTAGES

Light product

Low dynamic resistance

Form 4 to 8 dB less than dBred

16

COMPETITION

CORK

ADVANTAGES

Well known

Natural product

DISADVANTAGES

Not resistant to humidity

Difficult to install

Low sound insulation

Low elasticity

High price

17

COMPETITION

FIBERS

ADVANTAGES

Easy to find

Low price

DISADVANTAGES

Not resistant to humidity

High thickness

Low density

Porous

Low compression resistance

Unstable