AKUFLEX

AKUFLEX
AKUFLEX
Heliisoleeriv alusvaip põrandakatetele ja tasanduskihtidele
AKUFLEX - soundproof synthetic fibrous material, developed on the basis of present-day requirements for building acoustics.
AKUFLEX is used as an elastic underlay for the finishing floor coverings: laminate, parquet board, linoleum, and also under the leveling screed in order to reduce the level of impact noise under the floor construction.
 
Physical characteristics
  • Length of roll: 15 m
  • Width: 1 m
  • Material thickness: 4 mm
  • Roll weight: 5 kg
  • Surface density: 300 g / m2
  • Tensile strength: not less than 750 N
  • Coefficient of thermal conductivity: λ = 0.036 W / m
 
Distinctive features
  • Composition - polyester fiber, processed by special technology to obtain stable and durable elastic properties
  • Environmentally friendly material
  • Stable acoustic efficiency
  • Increases the service life of the floor covering by circulating air and moisture under the floor covering
  • Has a low hygroscopicity in comparison with other synthetic fibrous materials
Impact noise insulation
Acoustic tests performed by the laboratory of acoustic measurements NIISF RAASN Moscow
 

frequency, Hz

100

125

160

200

250

320

400

500

Reduction of impact noise ΔLnw with a laminate (8 mm) laid on a layer of AKUFLEX (4 mm), dB

3,5

2,6

2,8

4,0

3,0

3,5

8,4

17,2

frequency, Hz

630

800

1000

1250

1600

2000

2500

3200

Reduction of impact noise ΔLnw with a laminate (8 mm) laid on a layer of AKUFLEX (4 mm), dB

19,4

28,5

34,4

42,3

48,4

52,2

55,4

59,2

 
Reduction of impact noise
The reduction level of impact noise with one layer of AKUFLEX (4 mm):
  • Under a laminate(8 mm): ΔLnw = 20 dB;
  • Under a parquet board (15 mm): ΔLnw = 17 dB;
  • Under a cement-sand screed with a surface density of 100-120 kg / m2 - ΔLnw = 27 dB.
 
Attention!
When using the material of AKUFLEX as a cushioning layer under the leveling screed, it is necessary to use the separating layer of the polyethylene film, as well as reinforcement of the screed with metal structures to increase the mechanical strength.
 

 

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