insulFib 3+
Thin and ultra-resistant 22 dB
The efficient, thin and ultra-resistant acoustic underlay - NEW
insulFib 3+ is a thin acoustic underlay which aims to reduce the impact sound transmission between the different floors of a building. It has to be placed under a floating sand and cement screed. Alternatively, it can also be placed under a liquid screed.
Recent tests carried out by the CSTB in accordance with NF EN ISO 717-2 certify the outstanding performances of insulFib 3+.
Two-component acoustic felt
insulFib 3+ is a bi-component acoustic felt coated with a highly resistant spunbond non-woven fabric with a thin adhesive overlap of ± 6 cm width. This product has an extremely low dynamic stiffness since its resonance frequency is only at ± 50 Hz. This grants the product a remarkably good impact and high airborne sound insulation.
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Characteristics:Thickness: ≥ 3,5 mm (under 2 kPa) Colour: Blue (spunbond non-woven) + White (felt) Material: Spunbond non-woven fabric, Bi-component acoustic felt Insulation against impact noise: ∆ L w = 22 dB CSTB 2019 AC19-26080209 Insulation against airborne noise: ∆ R w, heavy = 8 dB CSTB 2019 AC19-26080209 Weight: ± 290 g/m² Dynamic stiffness: s’t = 9 MN/m³ Thermal resistance: R = 0,10 m²K/W (1 layer) Classification: SC2 a4 A Roll: 50 m x 1 m + blue adhesive overlap (6 cm) |
