Introduction

Sandwich panels are advanced, prefabricated building materials used for constructing walls, roofs, partitions, and cold storage facilities. They are known for their excellent thermal insulation, strength, and speed of installation, making them ideal for modern construction needs.

What Are Sandwich Panels?

A sandwich panel consists of three layers: two strong outer metal sheets and a lightweight, insulating core in between. The outer facings are usually made from pre-painted galvanized steel or aluminum, while the core is made from materials like polyurethane (PU), polyisocyanurate (PIR), expanded polystyrene (EPS), or mineral wool, depending on the insulation and fire-resistance requirements.

Key Features

• Lightweight and easy to handle
• Excellent thermal and sound insulation
• High structural strength and durability
• Fire and weather resistance (depending on core material)
• Quick and clean installation process
• Low maintenance and long service life

Types of Sandwich Panels

1. PU (Polyurethane) Sandwich Panels – Best for thermal insulation
2. PIR (Polyisocyanurate) Panels – Improved fire resistance with good insulation
3. EPS (Expanded Polystyrene) Panels – Economical with moderate insulation
4. Rockwool or Mineral Wool Panels – Excellent fire resistance and acoustic insulation

Applications

• Industrial buildings and warehouses
• Commercial offices and showrooms
• Cold storage and refrigeration units
• Prefabricated buildings and site offices
• Residential homes and farmhouses

• Modular cabins and shelters