insulit 4+2

Ultra thin - Ultra efficient 26 dB


The best price/performance ratio

insulit 4+2 is a highly efficient acoustic underlay designed to limit the transmission of impact noise between the different floors of a building. Its low dynamic stiffness helps to reduce airborne noise as well. insulit 4+2 is laid onto a concrete slab and has to be covered by a min. 5 cm thick floating screed.


Thin and high efficiency acoustic underlay for screed


insulit 4+2 is made of a physically crosslinked polyolefin foam with closed micro-cells, glued onto a polyester acoustic felt with a low dynamic stiffness
insulit 4+2 is thin, resistant and highly efficient, but moreover, it is available at a very attractive price. insulit 4+2 has been tested in 2017 by the BBRI according to the European norms EN ISO 717-2 and EN ISO 10140.




Benefits


  • Reduction of impact & airborne noises
  • In rolls, quick and easy installation
  • Cost-friendly
  • Tape provided to maintain the overlaps
  • Physically crosslinked polyolefin: guaranteed longevity
  • Closed microcells
  • Thin, light and flexible
  • Low dynamic stiffness: better acoustic performance
  • Low creep
  • Recent BBRI reports = guaranteed good results


  • CE
  • BBRI
  • VOC
insulit 4+2
insulit 4+2

Characteristics:

Materials:

Physically crosslinked polyolefin, acoustic polyester felt


Thickness:

≥ 6 mm under 1,5 kPa


Color:

Light blue (foam) / Anthracite (felt)


Impact noise insulation:

ΔLw = 26 dB(A) (ISO 717-2:2013 ; EN ISO 10140-3:2010)
ΔLw = 35 dB(B) (ISO 717-2:2013 ; EN ISO 10140-3:2010)


Dynamic stiffness:

st = 10 MN/m³ (EN 29052-1)


Tear resistance:

52 – 57 N (EN 12310-1)


Compression:

≤10 % under 2 kPa (tolerance 10%)


Thermal resistance:

R = 0,19 m²·K/W (EN 12667:2002)


Thermal conductivity:

λ = 0,0356 W/m·K at 10°C (foam) (EN 12667:2002)
λ = 0,0353 W/m·K at 10°C (felt) (EN 12667:2002)


Size:

50 m x 1,50 m = 75 m²


Weight:

±240 g/m² (18 kg/roll)


Overlaps:

Junction is made with an included kraft tape

Datasheet insulit 4+2 Read online Download