What Is a Sandwich Panel?
A sandwich panel is a composite building material consisting of three layers, used in structures to provide high thermal insulation, sound insulation, and fire resistance. Its two outer surfaces are made of metal sheets, while the core consists of insulation materials such as EPS, PUR, PIR, or mineral wool. Thanks to this structure, sandwich panels offer a solution that is both durable and lightweight.
At Divan Demir Çelik, we provide sandwich panel alternatives that offer high strength, long service life, and aesthetic solutions suitable for various applications.

Structural Features of Sandwich Panels
1. Outer Metal Sheets
Manufactured from galvanized, painted, or aluminum-coated metal sheets
Provide high resistance against corrosion
Can be customized with different thicknesses and surface options according to project requirements
2. Insulation Core Material
Various insulation options are available depending on the intended use:
EPS (Expanded Polystyrene): Lightweight and cost-effective solution
PUR / PIR: High thermal insulation with low thermal conductivity
Mineral Wool (Rock Wool): Maximum fire resistance and sound insulation
3. Locking and Joint System
Panels fit together perfectly during installation thanks to special interlocking systems, preventing thermal bridges
Provide superior airtightness and structural strength

Advantages of Sandwich Panels
✔ Excellent Thermal Insulation
Ensures energy savings and maintains balanced indoor temperatures.
✔ Easy and Fast Installation
Lightweight structure allows quick installation and reduces labor costs.
✔ High Durability
Resistant to impact, wind, and environmental conditions.
✔ Aesthetic Appearance
Offers a modern look with various color and surface options.
✔ Fire Resistance
Panels with mineral wool cores are especially preferred in buildings requiring high fire safety.
✔ Long Service Life
Maintain performance for many years thanks to corrosion-resistant surface coatings.

Areas of Use
Divan Demir Çelik sandwich panel solutions are widely preferred in the following areas:
Industrial facilities
Factory and warehouse buildings
Cold storage facilities
Agricultural and farm structures
Offices and social facilities
Prefabricated buildings
Energy facilities

Solutions Offered by Divan Demir Çelik
Panel options with different thicknesses and densities
Trapezoidal and flat surface alternatives
Panels specially designed for roof and façade applications
Technical support and project consultancy
Fast delivery and reliable supply process
If you would like detailed information about sandwich panels or need support in choosing the right solution for your project, the Divan Demir Çelik team is always ready to assist you.