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Materials & Construction

Engineered from the inside out.

The material inside a composite panel influences weight, strength, moisture resistance, temperature stability and long-term performance. Explore the core materials used through the ALPINE walls, roof and structural floor.

ALPINE composite walls and roof material

Walls & Roof

Lightweight composite wall and roof panels.

ALPINE wall and roof panels use a lightweight, closed-cell Polyvinyl Chloride foam core bonded within a composite sandwich panel.

Core Material Polyvinyl Chloride Foam
Structure Lightweight Closed-Cell Core
Panel Format Bonded Composite Sandwich Panel

Why it is used

  • Lightweight core material for composite wall and roof construction
  • Dense, smooth surface with relatively low resin absorption
  • More water resistant than traditional timber-based cores
  • Cost-efficient when engineered for the intended panel application
Material considerations

PVC foam has lower heat, fatigue and recyclability performance than PET foam. Final panel performance depends on the complete engineered system, including skins, bonding, panel thickness, structure and intended use.

ALPINE structural PET composite floor

Structural Flooring

A premium PET composite floor.

The ALPINE floor uses a rigid, closed-cell Polyethylene Terephthalate foam core selected for structural performance, moisture resistance, dimensional stability and long service life.

Core Material Polyethylene Terephthalate Foam
Structure Rigid Closed-Cell Core
Designed For High-Strength Lightweight Panels

Key benefits

  • Stable during hot lamination at temperatures up to 150°C
  • Strong compression, bending, shear and anti-fatigue performance
  • Low water absorption with no swelling, rot or mildew
  • Minimal expansion or shrinkage through temperature changes
  • Halogen-free and fully recyclable
Built for long-term touring

PET foam is suited to RV floors, marine components, transport bodies and other applications where strength, moisture resistance and long service life matter.

Composite Construction

A complete panel is more than its core.

The performance of a wall, roof or floor depends on the complete engineered system — including the core, external skins, bonding method, thickness, structure and how the finished assembly is used.

Questions?

Still have a question?

Whether you're comparing models, have a technical question or would simply like more information, send us a quick message and our team will be in touch.