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DANOSA ACOUSTIC MEMBRANE M.A.D.2

Danosa  Acoustic  Membrane  M.A.D.2  is  a  high  density  bitumen  modified membrane  specifically designed to behave as an anti resonant material。

It is an efficient substitute for lead sheets. Between porous absorbers materials works like a panel absorbers (most efficient at absorbing low frequencies)。

PRESENTATION

PRESENTATION

VALUE

UNIT

Length

12

m

Width

1

m

Total thickness

2

mm

ECHNICAL DATA

TECHNICAL DATA

VALUE

UNIT

STANDARD

Thickness tolerance

< 10

%

EN 823

Length and width tolerance

< 5

%

EN 822

Nominal mass

> 3

kg/㎡

EN 1849-1

Tensile strength: longitudinal

260

N/5cm

EN 12311-1

Tensile strength: tranversal

175

N/5cm

EN 12311-1

Resistance to tearing (nail shank)

125±50

KN/m

EN 12310-1

Dimensional stability at elevated temperature

stable

-

EN 1107-1

Reaction to fire

C s3 d0

-

EN 13501-1

Sound reduction index improvement between plasterboard

4

dB

EN 140-16

Insulation improvement to 125 Hz (rigid elements)

>4

dB

EN 140-16

Insulation improvement to 125 Hz (like panel absorber)

>8

dB

EN 140-16

STANDARDS AND CERTIFICATION
Acoustic certifications resulting from approved laboratory tests。

Laboratory

Test (EN 140-3) No

Result (EN 717-1)

L.G.A.I.

97.017.995

Rw= 33 dB

DANOSA

95/MAD/004

Rw= 37 dB

Test Report


SCOPE

Used between rigid elements such as plasterboards to improve the low frequency insulation。

Used between spring elements (fibers, rock wool) to increase the overall insulation treatment, improving significantly against  low frequencies through the membrane effect within mass-spring-mass system。

It used as antiresonant material in industrial acoustic insulation, providing acoustic mass to the galvanized steel sheet。

INSTRUCTION FOR USE

An installation of the Danosa Acoustic Membrane is shown in the following pictures:

1、Staple on 1st plate (wall)

2、Place the second plate (wall)

3、Staple on 1st plate (floating ceiling)

4、Set the 2nd plate (floating ceiling)

工程案例
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