Absorptive Noise Barrier Heading Absorptive Noise Barrier

Absorptive noise barriers are designed not only to block sound but also to absorb it, reducing echo and improving overall acoustic performance. They are generally categorized into two types: mono-absorbent and bi-absorbent barriers. Depending on the requirement, these barriers are manufactured in thicknesses ranging from 100 mm to 150 mm, which directly influences their soundproofing efficiency. Their performance levels are impressive, with a sound transmission class ranging from 20 dB to 45 dB and airborne sound insulation values between 18 dB and 45 dB. The cost of absorptive barriers largely depends on the quality and dimensions of the rockwool used within the structure, as well as the overall design of the barrier system. By combining effective sound insulation with absorption, these barriers provide a highly efficient solution for noise control in demanding environments.

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animation-w4 Product Specification

  • Panel Sizes: 3960 × 500 mm, 2960 × 500 mm, 2460 × 500 mm, 1960 × 500 mm

  • Panel Thickness Options: 80 mm, 100 mm, 120 mm

  • Wind Load: Designed as per IS 875 Part-III, 1987

  • Sound Proofing: Class A4

  • Sound Deadening: Class B2

  • Type of Wall: Double skin insulated wall

  • Facing Sheet (Front Side): Plain metal sheet / GI sheet / Aluminium, 0.5 – 1.2 mm thick

  • Backside Sheet: Perforated sheet / GI sheet / Aluminium with 22–46% open area

  • Infill/Core Material: Rockwool conforming to IS 8183 & BS 476, with varying density and thickness; covered with fire-resistive fibre tissue paper

  • Cover: Water-repellent tissue paper laminated on infill material, 50-micron thickness

  • Sound Damping Layer: High-density mass loaded vinyl barrier, 2 mm thickness

  • Joint System: Panels designed with tongue & groove for perfect alignment

  • Gasket: Neoprene rubber gaskets at joints to prevent noise leakage

  • Vertical Post Structure: ‘H’ profile design, allowing acoustic panels to slide longitudinally

  • Finish: All metallic surfaces/parts are galvanised, powder coated, or painted in desired shades

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