
Wallboard is a sandwich panel created by combining extruded polystyrene (XPS) foam with PVC sheets. Depending on the thickness, it contributes to thermal insulation.
This product is a sandwich panel manufactured by combining extruded polystyrene (XPS) foam and PVC sheets. Thanks to its lightweight, durable, and long-lasting structure, it is preferred particularly in areas requiring thermal insulation.
Its PVC surface makes it hygienic, easy to clean, and moisture-resistant. The XPS foam core provides high thermal insulation due to its low thermal conductivity. Availability in various thickness options allows you to achieve the optimal insulation value for the specific application area.
Additionally, the material is fire-resistant (Class B1 – E), does not absorb water, and is non-capillary. Its lightweight nature makes installation easy and ensures it does not add significant load to the structure.

| Specification | Value |
|---|---|
| Density (kg/m³) | TSE 11989 EN 13164 — 26 - 32 |
| Thermal Conductivity Coefficient / Heat Transfer | TSE 11989 EN 13164 — 0.033 |
| Fire Resistance | TSE 11989 EN 13164 — B1-E |
| Thickness (cm) | 17, 18, 21, 22, 37 |
| Vapor Diffusion Resistance Coefficient (µ) | DIN 52615 — 100 - 225 |
| Linear Thermal Expansion Coefficient (mm/m°K) | UNI 6348 — ≤ 0.07 |
| Capillarity | N/A |




Structure: A sandwich panel produced by combining Extruded Polystyrene (XPS) foam and PVC sheet.
Thermal Insulation: Provides high thermal insulation thanks to its low thermal conductivity coefficient (λ ≤ 0.033 W/mK).
Fire Resistance: Class B1 – E fire-resistant structure.
Moisture and Water Resistance: Non-capillary, water-repellent, and unaffected by moisture.
Hygienic Surface: Easy to clean and bacteria-resistant thanks to its PVC outer coating.
Thickness Options: Available in various thicknesses (17, 18, 21, 22, 37 cm).
Density: High strength within the range of 26 – 32 kg/m³.
Eco-Friendly: Produced with lead-free materials that are harmless to the environment and human health.
Energy Saving: Provides up to 30% savings on heating and cooling costs by reducing heat loss.
Long-Lasting Use: Highly durable with a long service life thanks to its resistance to impacts and environmental conditions.
Easy Installation: Easy to transport and install due to its lightweight structure.
Aesthetic and Functional: Adapts to various architectural applications with its smooth surface and different thickness options.
Environmental Benefit: Reduces carbon emissions by enabling energy efficiency and contributes to sustainable building practices.
Thanks to its extruded polystyrene (XPS) foam structure, the product features a low thermal conductivity coefficient. This property both prevents heat loss and helps maintain the indoor temperature. Consequently, less energy is consumed, resulting in savings on heating and cooling costs.
The sandwich panel’s thickness options allow for the selection of the optimal thermal insulation level based on specific climate conditions. When applied at the correct thickness, it significantly reduces energy demand, thereby improving the building’s energy class and contributing to environmentally friendly, sustainable structures.
Additionally, the material’s high vapor diffusion resistance coefficient reduces the risk of moisture and condensation. This extends the lifespan of the structure while minimizing energy losses.
Consequently, the product delivers high performance in terms of both thermal insulation and energy efficiency, offering both economic savings and environmental benefits.
Our products are manufactured in accordance with national and international quality standards. TSE 11989 and EN 13164 standards. They have been tested and certified according to These standards guarantee the product’s thermal conductivity coefficient, density, fire resistance, and mechanical properties.
Furthermore, our products:
Have undergone fire resistance tests in accordance with DIN 52615 and UNI 6348 standards.
Are manufactured within the framework of the ISO 9001 Quality Management System and are subject to continuous quality control processes.
Are produced using lead-free and eco-friendly materials, in line with policies for production that respects the environment and human health.
These documents attest to both the reliability and the
Cold storage facilities
Food processing plants
Cleanroom applications
Interior/exterior cladding in the construction sector
Please contact our sales representatives for technical system details, color variations, and ordering processes regarding the Extraline profile. You can download the detailed product catalog, installation guide, and supporting documents in PDF format.

It prevents the growth of bacteria

Protects people and environment

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