Yukings hybrid noise barriers use a two-layer structure: a perforated / louvered metal face with rock-wool absorption on the source side, backed by a heavy rigid panel for low-frequency mass-law insulation. This combination delivers the highest broadband insertion loss of any conventional noise barrier, ideal for high-speed railways, residential-sensitive highways and industrial plant boundaries.
Hybrid noise barriers combine the best of both absorptive and reflective technologies in a single multi-layer panel. The source-facing side uses a perforated or louvered metal face with high-density hydrophobic rock-wool core to absorb broadband sound from 125 Hz to 4 kHz. Behind this sits a heavy 1.5-3 mm rigid steel or concrete liner that provides mass-law low-frequency transmission loss. The result is a flat insertion loss curve delivering 35-45 dB across the full audible spectrum.
| Property | Value |
|---|---|
| Insertion Loss DL (EN 1793-3) | 35 - 45 dB |
| Sound Absorption (Alpha w) | 0.85 - 0.98 |
| Sound Insulation Rw (EN ISO 717-1) | 42 - 55 dB |
| Panel Width | 2,500 mm (8 ft 2 in) standard |
| Panel Height | 500 mm (1 ft 8 in) standard |
| Panel Depth | 120 / 140 / 160 / 200 mm |
| Face Layer Material | Perforated or louvered DX51D+Z galvanized steel / aluminum alloy |
| Absorptive Core | High-density hydrophobic rock-wool 100-140 kg/m3 with EPDM membrane |
| Reflective Back Panel | Solid galvanized steel 1.5-3 mm + optional concrete liner |
| H-post Column Size | H 150 x 150 x 8 x 10 mm or IPE 140 |
| H-post Spacing | 2.0 m or 2.5 m bays |
| Barrier Height | 3.0 - 8.0 m with stepped cantilever cap option |
| Design Service Life | 25 years |
| Structural Warranty | 15 years |
| Corrosion Resistance | ISO 12944 C4-H |
| Fire Rating | Class A (EN 13501-1) |
| Wind Load Rating | 1.5 kN/m2 (EN 1991-1-4) |
| Finish | Hot-dip galvanized + RAL powder coat |
| Transparent Window Option | 8 / 10 / 12 mm UV-stabilized polycarbonate |
Maximum broadband insertion loss through two-layer dual-function panels - the gold standard for complex noise environments.
Absorptive louvered/perforated face on source side with rock-wool broadband dissipation, backed by heavy rigid reflective steel for mass-law low-frequency transmission loss.
The highest broadband insertion loss (35-45 dB) of any conventional noise barrier configuration, tested to EN 1793-3 with full project-specific acoustic calculations.
Superior low-frequency control through 1.5-3 mm rigid back panel providing excellent Rw 42-55 dB sound insulation that single absorptive panels cannot achieve.
Four standard panel depths (120/140/160/200 mm) tuned to different insertion loss targets and noise spectrum profiles for optimal cost-performance on every project.
Barrier heights from 3.0 m up to 8.0 m including stepped cantilever cap configurations for advanced diffraction control on high-speed rail projects.
ISO 12944 C4-H corrosion protection rating suitable for heavy industrial and coastal environments where reflective barrier durability must exceed standard C3-M requirements.
Structural engineering to 1.5 kN/m2 wind load rating with H 150 x 150 x 8 x 10 mm or IPE 140 heavy-duty H-posts for taller and more exposed project sites.
Fully CE marked with ISO 9001 quality management, EN 13501-1 Class A fire rating and full EN 1793-3 / EN 1794-1 acoustic and structural dossier.
Hybrid barriers along high-speed railway and high-speed metro lines providing strong low-frequency transmission loss combined with broadband aerodynamic noise absorption.
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High-quality hybrid barriers for urban and suburban highways with close proximity to residential receivers where flat broadband reduction across low, mid and high frequencies is required.
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Hybrid panels along heavy industrial plant boundaries with multi-source complex noise spectra - absorptive face captures high frequencies, reflective back handles low-frequency tonal noise.
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Stepped cantilever cap hybrid barriers up to 8.0 m in height for advanced diffraction control, bridge parapet installations and high-performance urban infrastructure projects.
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Single-layer rigid panels (galvanized steel / aluminum / concrete) that reflect sound back toward the source - cost-effective mid-high frequency barrier solution.
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Perforated or louvered face with rock-wool core absorbing sound energy from 125 Hz to 4 kHz - standard solution for residential-area highway and metro noise.
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Bifacial monocrystalline PV modules mounted on high-performance absorptive/hybrid barrier structure delivering noise reduction plus renewable electricity generation.
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Complete product line for HSR, metro, conventional rail and light-rail transit including absorptive, hybrid and cantilever-cap configurations tested to railway industry standards.
Explore Railway Barriers →Hybrid barriers are the right choice when your project has complex noise spanning both low frequencies (from heavy vehicles, industrial machinery or HSR aerodynamic rumble) and high frequencies (wheel-rail noise, aerodynamic tonalities). Where single absorptive panels lack strong low-frequency transmission loss and single reflective panels do not dissipate mid-high frequency sound, hybrid barriers provide flat broadband insertion loss of 35-45 dB across the full audible spectrum.
Yukings hybrid barriers are designed for standard heights from 3.0 m up to 5.0 m on conventional H-post bays. With additional structural reinforcement and optional stepped cantilever cap configurations we can build hybrid barriers up to 8.0 m in height for projects requiring advanced diffraction control. All tall configurations include project-specific structural calculations to 1.5 kN/m2 wind load.
Yes. Our hybrid barrier system supports 8 / 10 / 12 mm UV-stabilized polycarbonate transparent window modules. Windows install within the same 2.0/2.5 m H-post bay spacing and are acoustically matched to maintain the hybrid barrier's broadband insertion loss profile. They are particularly useful for driver visibility on curved highway sections and bridge parapets.
Yukings hybrid noise barriers carry CE marking with full EN 1793-3 acoustic performance dossier (35-45 dB insertion loss), EN 1794-1 structural testing, EN ISO 717-1 sound insulation (Rw 42-55 dB) and EN 13501-1 Class A fire rating. Quality management follows ISO 9001 and corrosion protection meets ISO 12944 C4-H. Full project-specific acoustic calculations and structural engineering reports are available for every customer.
Our hybrid barrier specialists provide free technical guidance, project-specific acoustic calculations and factory-direct pricing for global projects. Send us your project plans for a response within 24 hours.
