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
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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) Dynamic stiffness: s’t = 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) 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 |
