Sandwich panels are lightweight, durable construction materials known for their excellent insulation properties. They consist of three layers: two outer surface layers and a core material sandwiched between them. This structure enhances the structural strength while providing thermal, acoustic, and moisture insulation.

Structure of Sandwich Panels:

Outer Surface Layers:

Metal Claddings: Typically made from galvanized steel, aluminum, or stainless steel, these layers provide durability, corrosion resistance, and an aesthetically pleasing appearance to the panels.
Fiberglass or Plastic Claddings: These materials are used in environments with high moisture or chemical exposure. They are lightweight and resistant to corrosion.

Core Material:

Polyurethane (PUR): A lightweight, durable material with high thermal insulation properties. Polyurethane core panels are highly favored for their energy efficiency.
Polyisocyanurate (PIR): Similar to polyurethane but offers greater heat resistance, making it superior in fire safety.

Mineral Wool (Rock Wool or Glass Wool): The most fire-resistant core material, providing excellent sound insulation as well.
Polystyrene (EPS): Made from extruded polystyrene foam, this core is cost-effective and lightweight.

Advantages of Sandwich Panels:
High Insulation Performance: Sandwich panels offer excellent thermal and sound insulation, making them advantageous in terms of energy savings and comfort.
Fire Resistance: Panels with a mineral wool core, in particular, offer high resistance to fire.
Lightweight and Structural Durability: Despite their light weight, sandwich panels provide high strength, which enhances the load-bearing capacity of structures without adding excessive weight.

Quick and Easy Installation: As prefabricated construction elements, they can be assembled quickly on-site, reducing construction time and labor costs.
Eco-Friendly: They are environmentally friendly due to their high energy efficiency and the use of recyclable materials.

Applications:
Industrial Buildings: Factories, warehouses, cold storage facilities, and logistics centers.
Commercial Buildings: Shopping malls, office buildings, supermarkets, and retail stores.
Agricultural Structures: Barns, greenhouses, and storage facilities.
Modular and Prefabricated Structures: Container homes, temporary offices, and construction sites.

Sandwich panels offer innovative solutions in the construction industry, meeting the needs for energy efficiency, fire safety, and rapid installation. They are particularly favored in large-scale projects and areas requiring high insulation.