Yukings angled-top (also called folded-top, cantilever-cap or L-cap) noise barriers add a horizontal or downward-angled cantilever cap at the top of the wall, creating an extended acoustic shadow zone behind the barrier and delivering the highest effective insertion loss per meter of barrier height available in conventional noise wall design. Cantilever caps are particularly effective for high-speed railway noise and for residential buildings close to the road.
The L-shaped cantilever cap creates an extended acoustic shadow zone behind the wall, delivering the highest effective insertion loss per meter of barrier height available in conventional noise wall design. Cap projection typically ranges from 300 mm to 800 mm horizontal distance and can be tuned to match your receiver geometry, site constraints and required attenuation target.
Yukings folded-top / L-cap barriers combine a standard vertical absorption panel column with a galvanized steel or aluminum alloy cantilever cap projecting horizontally or at a downward angle into the receiver side. The cap creates an extended acoustic shadow zone — effectively shielding receptors behind the wall from both direct line-of-sight and diffracted sound rays — delivering the highest effective insertion loss per meter of barrier height of any conventional noise wall profile.
Detailed engineering specification for Yukings angled / folded / cantilever cap L-top noise barriers. Cap projection, angle and depth are fully project-tunable.
L-shaped cantilever cap design with project-tunable cap projection for maximum insertion loss per meter of barrier height.
| Property | Value |
|---|---|
| Insertion Loss DL (EN 1793-3) | 30 – 45 dB (including cap diffraction gain) |
| Sound Insulation Rw (EN ISO 717-1) | 38 – 55 dB |
| Top Profile | L-shaped angled / folded cantilever cap |
| Cap Projection | 300 – 800 mm horizontal projection (project-tunable) |
| Cap Material | galvanized steel / aluminum alloy |
| Panel Material | DX51D+Z galvanized steel 1.5-3.0 mm with absorptive core |
| Panel Depth | 120 / 140 / 160 / 200 mm |
| Absorptive Core | rock-wool 100-140 kg/m3 with EPDM membrane |
| H-post Column Size | H 125 x 125 x 6.5 x 9 to H 200 x 200 x 9 x 14 |
| H-post Spacing | 2.0 m or 2.5 m bays |
| Barrier Height (incl. cap) | 3.0 – 8.0 m including cantilever cap |
| Transparent Window | 8 / 10 / 12 mm polycarbonate compatible |
| Finish | hot-dip galvanized + RAL powder coat |
| Corrosion Resistance | ISO 12944 C3-M / C4-H |
| Fire Rating | Class A (EN 13501-1) |
| Wind / Cap Moment | designed for cantilever loads per project |
| Design Service Life | 25 years |
| Structural Warranty | 15 years |
From acoustic shadow-zone simulation through cap-moment structural engineering and containerized shipping, Yukings delivers L-cap cantilever barriers tailored to your project geometry and attenuation requirements.
The L-shaped cantilever cap delivers the highest effective insertion loss per meter of barrier height available in conventional noise wall design — verified by project-specific acoustic simulation.
Horizontal or downward-angled cap projection creates an extended acoustic shadow zone behind the wall, effectively shielding receptors from both direct and diffracted sound paths.
Cap projection from 300 mm to 800 mm horizontal distance, fully tunable per project based on receiver height, source height, barrier distance and required attenuation target.
Cantilever cap moment, H-post column size (H 125x125x6.5x9 to H 200x200x9x14), wind load and foundation load are all calculated per project for structural safety.
Full EN 1793 / EN 1794 test dossier with CE marking; project-specific diffraction gain and shadow-zone simulation report delivered with every tender.
Ideal for high-speed rail corridors and residential buildings close to roads and railways, where maximum attenuation per meter of barrier height is critical to meet noise compliance.
Deep absorptive panel depths (120/140/160/200 mm) with 100-140 kg/m3 rock-wool core and EPDM waterproof membrane for long-term broadband absorption performance.
Hot-dip galvanized plus RAL powder-coat finish with C3-M or C4-H corrosion classification for long service life near coastal areas and heavy industrial environments.
Compare angled-top / L-cap barriers with Yukings flat-top and curved-cap profiles, or explore our dedicated application-specific noise wall product lines.
Classic straight-profile noise wall with standard modular panel construction; default specification for cost-effective high-volume highway and railway projects.
View Product →
Engineered curved-cap profile redirects diffracted sound waves over the barrier top, delivering +3-8 dB additional attenuation compared to equivalent-height flat-top walls.
View Product →
Metal-louvered absorption panels with optional polycarbonate or concrete sections for expressway, ring road and bridge parapet noise control.
View Product →
Rigid modular panels designed for high-speed rail aerodynamic load, cantilever-cap moment, vibration, fatigue and slip-stream requirements.
View Product →
Cantilever cap and curved-profile barriers for housing developments, schools, hospitals and sensitive residential reception areas close to roads and railways.
View Product →
Absorptive metal-faced panels with Class A fire rating for power plants, factories, warehouses, compressor stations and industrial perimeter walls.
View Product →Commonly asked technical, commercial and logistics questions about Yukings angled / folded / L-cap cantilever-top noise barriers.
Our L-cap cantilever noise barrier specialists will respond to your project inquiry within 24 hours, including acoustic simulation guidance and structural recommendations where applicable.
Share your project parameters and a Yukings engineer will prepare a tailored proposal, including cap projection, acoustic simulation and structural recommendations.
