Yukings fully-enclosed noise barriers (also called full-cover noise walls, acoustic tunnels or sound hoods) create a 4-sided enclosure around the noise source — two vertical side walls plus a structural cover roof with absorptive underside material. Fully-enclosed barriers are specified for the most noise-sensitive urban projects including high-speed railway corridors passing near residential and hospital districts, elevated metro lines, and urban expressway viaducts.
A fully-enclosed noise barrier creates a complete acoustic tunnel or sound hood around the noise source — two vertical absorptive hybrid side walls plus a structural steel truss cover roof. The 4-sided geometry delivers the highest possible insertion loss (40-55 dB) and is specified for the most noise-sensitive urban railway, metro and transit viaduct projects.
Yukings fully-enclosed noise barriers combine heavy-gauge hybrid absorptive + reflective vertical side walls with a structural steel truss cover roof. The cover roof underside is lined with absorptive acoustic material to reduce reflected sound inside the tunnel, and the roof span is engineered for 6.0 m to 14.0 m clear span depending on the track configuration and loading requirements. Optional bifacial monocrystalline silicon PV modules can be integrated on the roof surface for on-site solar power generation.
Detailed engineering specification for Yukings flat-top noise barriers. All parameters align with EN 1793 / EN 1794 / EN 1991-1-4 testing and design standards.
4-sided acoustic tunnel with heavy-gauge hybrid absorptive + reflective side walls and structural steel truss cover roof.
| Property | Value |
|---|---|
| Insertion Loss DL (EN 1793-3) | 40 – 55 dB |
| Sound Insulation Rw (EN ISO 717-1) | 45 – 62 dB |
| Enclosure Type | 4-sided fully enclosed (2 walls + structural steel truss roof) |
| Side Panel Width | 2,000 / 2,500 mm |
| Side Panel Depth | 140 / 160 / 200 / 250 mm hybrid absorptive panels |
| Cover Roof | hot-dip galvanized steel structural roof with absorptive underside; optional PV modules |
| Roof Clear Span | 6.0 m – 14.0 m (steel truss design) |
| H-post Column Size | heavy H 200 x 200 x 9 x 14 to H 300 x 300 x 10 x 15 |
| Foundation Type | reinforced concrete strip foundation or bored pile |
| Barrier Height (including roof) | 5.0 – 12.0 m |
| Transparent Window | 8 / 10 / 12 mm polycarbonate compatible (side walls only) |
| Finish | hot-dip galvanized + RAL powder coat |
| Corrosion Resistance | ISO 12944 C4-H |
| Fire Rating | Class A (EN 13501-1) |
| Wind / Seismic Load | per project geotechnical specification |
| Design Service Life | 25 years |
| Structural Warranty | 15 years |
| Optional PV Integration | bifacial monocrystalline silicon modules on roof |
4-sided acoustic tunnels delivering the highest insertion loss (40-55 dB) with full structural engineering, optional PV roof integration and project-tested performance for the most noise-sensitive urban projects.
Two heavy-gauge hybrid absorptive + reflective vertical side walls plus a structural steel truss cover roof create a complete acoustic tunnel around the noise source.
The highest effective insertion loss range in the Yukings product family, delivering the strongest noise attenuation for the most noise-sensitive urban projects.
Structural steel truss cover roof engineered for 6.0 m to 14.0 m clear span, tuned to your track configuration and loading requirements.
Heavy H 200x200x9x14 to H 300x300x10x15 hot-dip galvanized steel columns engineered to support the full structural steel truss cover roof.
140/160/200/250 mm depth hybrid absorptive + reflective side-wall panels with hydrophobic rock-wool infill for consistent broadband absorption.
25-year service life design with a 15-year structural warranty on Yukings-manufactured side-wall panels, cover roof steel trusses and H-post columns.
Engineered for high-speed railway aerodynamic loading, urban metro line vibration, and elevated transit viaduct applications.
Design-ready for optional bifacial monocrystalline silicon PV module integration on the cover roof, with full structural and electrical engineering support.
Compare fully-enclosed barriers with Yukings semi-enclosed, angled folded-top and flat-top profiles, or explore our dedicated application-specific noise wall product lines.
U-shaped 3-sided noise barriers with a cantilevered cover plate over the source, delivering 30-45 dB insertion loss for highways, railways and industrial sites.
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L-shaped and Y-shaped cantilever cap barriers for maximum insertion loss per meter of barrier height at urban and railway projects.
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Cantilevered curved-crown and arch-top profile barriers for advanced diffraction attenuation and railway aerodynamic noise control.
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Metal-louvered absorption panels with optional polycarbonate or concrete sections for expressway, ring road and bridge parapet noise control.
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Rigid modular panels designed for high-speed rail aerodynamic load and railway-specific vibration, fatigue and slip-stream requirements.
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Noise barriers with integrated bifacial monocrystalline silicon PV modules on the cover roof for on-site solar power generation.
View Product →Commonly asked technical, commercial and logistics questions about Yukings fully-enclosed 4-sided noise barrier acoustic tunnel projects.
Our fully-enclosed noise barrier specialists will respond to your project inquiry within 24 hours, including technical guidance, roof span recommendations and project pricing where applicable.
Share your project parameters and a Yukings engineer will prepare a tailored proposal, including panel dimensions, H-post spacing, barrier height and estimated attenuation performance.
