BUS & COACH · ADVANCED LIGHTWEIGHT STRUCTURES

Engineering
Lightweight Mobility

Advanced composite structures and lightweight solutions for buses, coaches and commercial vehicles.

Lighter Vehicles. Lower Energy. Sustainable Future.

EXPLORE THE SURBODY SYSTEM

Conceptual unbranded electric coach in a European mobility corridor.

SURBODY-ROOF lightweight composite system

APPLICATION / 01PHOTOREALISTIC CONCEPT

SURBODY-ROOF

Lightweight Starts
at the Top.

An advanced sandwich composite roof system for buses, coaches and commercial vehicles. SURBODY-ROOF combines structural strength, thermal insulation and integrated functions in one vehicle-specific solution.

Lower Mass. Better Comfort. Simpler Assembly.

Conceptual exploded studio rendering of a layered lightweight sandwich panel. — CONCEPTUAL MATERIAL VISUALSTRUCTURE LABELS REMAIN EDITABLE

Less Mass Above the Vehicle

Lower mass high on the vehicle can support energy efficiency, payload margin and system packaging, according to the goals of the programme.

Thermal and Acoustic Comfort Built In

The sandwich structure combines thermal and acoustic performance with the strength and stiffness required by the selected roof configuration.

Fewer Parts. Less Overhead Work.

Pre-integrated insulation, wiring, duct panels, lighting profiles and protective surfaces reduce separate parts and high-level fitting at final assembly.

SEE WHAT LIGHTER MAKES POSSIBLE

WHAT CHANGES FOR THE VEHICLE

A roof that delivers more than a weight saving.

The system is configured around the result the vehicle needs, from energy use and cabin comfort to assembly effort and service exposure.

Conceptual macro photograph of a metallic skin and lightweight porous core.

ONE STRUCTURE / MULTIPLE VEHICLE OUTCOMES Material architecture engineered around the duty of the roof.

01MASS

Lightweight

Lower roof mass can support energy efficiency, payload margin and better weight distribution.

VIEW WEIGHT DATA

02CABIN LOAD

Thermal Efficiency

Continuous sandwich insulation helps control heat transfer and reduce avoidable load on the cabin climate system.

VIEW THERMAL DATA

03SERVICE

Durability

Composite skins resist corrosion and moisture. Fewer joints can also reduce the number of sealing interfaces that need attention.

REVIEW SERVICE EXPOSURE

04LIFECYCLE

Sustainability

Lower operating energy and recyclable material routes can reduce lifecycle impact when verified against the final configuration.

RUN FLEET SCENARIO

Conceptual engineering team reviewing an unbranded vehicle-roof geometry model.

CONFIGURED FOR THE VEHICLE

Solve the roof constraints together,
not one at a time.

Share the roof load, weight target, cabin requirements, installation interfaces and production constraints. AEVISS turns them into one roof configuration.

AEVISS CAPABILITY Composite material, vehicle structure and integration engineering in one team.

One technical owner coordinates the roof specification from first layout through validation.

01WEIGHT

Keep only the structure the load case needs

Balance mass against strength and stiffness.

02LOADS

Support batteries, HVAC and service loads

Configure skins, core and reinforcement for the duty.

03CABIN

Control heat and noise through the roof

Select insulation and acoustic performance with the structure.

04INTERFACES

Make the roof fit the vehicle package

Resolve openings, mounts, wiring, ducts and sealing boundaries.

05ASSEMBLY

Reduce work above the vehicle

Move suitable integration into the roof module.

Conceptual fleet of unbranded electric coaches in a depot at blue hour.

SEE THE FLEET EFFECT

Quantifying Financial & ESG Dividends

Enter your fleet size, mileage and energy price to see how a lighter roof can change energy cost and CO₂ over the service life of the vehicles.

INCLUDED IN THIS MODEL

Integration-cost difference
Mass-related energy-cost difference
Planned-maintenance difference

FLEET TCO SCENARIOMODEL V1.1

FLEET SIZE

ANNUAL MILEAGE / BUS

ENERGY PRICE

LIFECYCLE OPPORTUNITY€667,435

PER BUS€6,674

ANNUAL CO₂e DIFFERENCE12.7 t

ADVANCED ASSUMPTIONSFIXED PARAMETERS

SERVICE LIFE: 10 years
MASS DIFFERENCE: 267.61 kg/bus
MAINTENANCE DIFFERENCE: €32.36/bus/year

Integration-cost difference €3,254.40/bus · discount rate 3% · grid factor 0.210 kg CO₂e/kWh.

DOWNLOAD SUMMARY

APPLICATION PROOF

See how the roof performs in the vehicle,
not just on a data sheet.

Different programmes need different roof configurations. These cases connect the original vehicle problem with the supplied structure and the result verified at project level.