Sandwich panels have become a go-to solution in modern construction—offering high thermal insulation, quick installation, and long-term durability. Yet, despite their rising popularity, many misconceptions still surround these versatile building materials.
At EPACK Prefab, we’ve encountered countless myths during client interactions across industrial, commercial, and cold storage projects. So in this blog, we’re setting the record straight by busting some of the most common myths about sandwich panels.
❌ Myth #1: Sandwich Panels Are Not Durable
✅ Truth:

Sandwich panels—especially those made with PUF, PIR, EPS, or Rockwool cores and coated steel sheets—are designed to withstand extreme weather, impact, and structural stress. At EPACK, our panels undergo compressive strength testing and long-term durability checks to ensure they meet international performance standards.
In fact, when properly maintained, sandwich panels can last 20–25 years or more!
❌ Myth #2: Only Suitable for Temporary Buildings
✅ Truth:
This is one of the biggest misconceptions. Sandwich panels are widely used in permanent structures like:

- Cold storages
- Industrial sheds
- Warehouses
- Airports
- Data centers
- Hospitals and more
Their modular design, strength, and insulation make them perfect for both temporary and permanent prefab construction.
❌ Myth #3: They Are Not Fire-Resistant
✅ Truth:
Not all panels are the same. At EPACK, we offer Rockwool and Glass Wool sandwich panels that are fire-rated and used in industries with strict fire safety requirements.

Depending on the project, we help clients choose the right panel type—PUF, PIR, or Rockwool—based on fire resistance, acoustic needs, and insulation values.
❌ Myth #4: Brick Walls Are Always Better Than Sandwich Panels
✅ Truth:

While bricks are traditional, they’re no longer the only “strong” option. Sandwich panels offer many advantages:
- Faster construction
- Superior insulation
- Lightweight, reducing foundation load
- Better seismic performance
- Eco-friendly and recyclable
Plus, they save time, labor, and reduce long-term operational costs due to their energy efficiency.
❌ Myth #5: Panels Don’t Work in Hot & Humid Regions

✅ Truth:
EPACK Prefab’s panels are specifically designed for Indian climates, including the hot and humid conditions of India. Our PUF and PIR core panels offer low thermal conductivity, which helps maintain cool interiors even in regions like Chennai, Hyderabad, and Kochi.
Plus, the closed-cell insulation prevents moisture ingress, making them suitable for coastal areas.
❌ Myth #6: Sandwich Panels Are Too Expensive

✅ Truth:
While the initial material cost might be slightly higher than bricks, the total lifecycle cost is much lower. Why?
- Lower labor costs
- Quicker installation
- Energy savings from insulation
- Minimal maintenance
Overall, sandwich panels offer a better return on investment (ROI), especially for long-term industrial or commercial buildings.
❌ Myth #7: All Sandwich Panel Manufacturers Are the Same

✅ Truth:
Quality varies widely between manufacturers. Factors like:
- Type of core material (PUF, PIR, EPS, Rockwool)
- Manufacturing technology (continuous line vs. manual)
- Surface coating
- Panel bonding and joint design
…all affect the panel’s performance.
At EPACK Prefab, we use advanced continuous line manufacturing, premium raw materials, and conduct multi-stage quality checks to ensure uniformity, durability, and efficiency.
🏁 Conclusion
Don’t let myths hold you back from using one of the best building solutions available today. Sandwich panels are not just a modern alternative—they’re a superior solution when manufactured and used correctly.
At EPACK Prefab, we’re not only manufacturers—we’re solution providers, ensuring you get the right panel for your application, environment, and performance needs.
📞 Have Questions? Let’s Talk!
Still unsure about sandwich panels for your project?
📩 Contact our experts at www.epack.in/contact-us
📞 Or call us: +91 8130 444 466
We’ll guide you with facts, not myths.