Insulit Bi+8 - Acoustic underlay for concrete floor - Insulco

Acoustic underlay designed to limit the transmission of impact noise and airborne noise between floors.

Even more resistant , it offers even higher acoustic performance and simplified installation.

Price and quantity per m². Please indicate the quantity in m².

€8.90Tax Included

Volume discounts

QuantityYou SaveUnit price
455 %€8.46
15010 %€8.01
27015 %€7.57
INS ISLT.BI+8
9145385980231

Insulit Bi+8 - Acoustic underlay for concrete floor - Insulco

Acoustic underlay designed to limit the transmission of impact noise and airborne noise between floors.

Even more resistant , it offers even higher acoustic performance and simplified installation.

Composition :

Insulit Bi+ 8 consists of a layer of embossed polyolefin foam (thickness ≥ 3.5 mm), physically reticulated with closed cells associated with an acoustic felt with low dynamic rigidity (thickness ≥ 5 mm).

A bi-component is more effective than a mono-layer solution because the felt and the foam make it possible to cover a wider frequency range . The felt corrects the low frequencies and the foam corrects the medium and high frequencies .

Benefits :

  • Attenuation of impact noise and airborne noise.
  • In roll, easy and fast installation.
  • Very high efficiency Tape supplied to fix the covers.
  • Physically cross-linked polyolefin: guaranteed longevity.
  • Micro closed cells.
  • Thin, light and flexible.
  • Low dynamic stiffness = superior acoustic performance.
  • Low creep.
  • Recent CSTC report = guaranteed results.

Features :

  • Impact sound reduction:
    • ∆Lw = 28 dB on bare slab without pre-screed.
    • ∆Lw = 35 dB with pre-screed.
  • Acoustic measurement level:
    • Ln,r,w = 50 dB on bare slab without pre-screed.
    • Ln,r,w = 43 dB with pre-screed.
  • Materials: Physically cross-linked polyolefin and acoustic polyester felt.
  • Thickness: ≥ 8.5 mm under 1.5 kPa.
  • Colour: Orange (foam) / anthracite (felt).
  • Dynamic stiffness: s't ≤ 8 MN/m³ (EN 29052-1).
  • Tear resistance: 50 - 50 N (EN 12310-1).
  • Compression: ±10% under 2 kPa (10% tolerance).
  • Thermal resistance: R = 0.24 m² K/W (EN 823:2013).
  • Thermal conductivity :
    • λ = 0.0356 W/m K at 10°C (foam) (EN 12667:2001).
    • λ = 0.0353 W/m K at 10°C (felt) (EN 12667:2001).
  • Size: 30m x 1.50m.
  • Weight: ±320 g/m² (weight of a roll: ±15 kg).
  • Covering: Fixing with a roll of kraft tape supplied.
  • Packaging: In plastic with installation instructions.

Attention :

  • For logistical reasons: orders that are too small or too light may be declined. In general, the minimum order is 20m², but we are still listening.
  • All orders with problematic or too weak logistics can be picked up directly by the customer.
Insulco
INS ISLT.BI+8

Specific References

EAN13
9145385980231
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