When designing and constructing a steel building, insulation is one of the most critical components that determine your building’s performance and long-term efficiency. But how do you choose the right type of sandwich panel for your specific project?
At Hasanoglu, we offer a wide range of sandwich panels with different core materials:
What Are the Differences Between EPS, PUR and Rock Wool Panels?
In this article, we’ll help you understand the differences and guide you in selecting the panel that best fits your needs.
1. EPS – The Budget-Friendly Thermal Insulation
EPS (Expanded Polystyrene) panels are a cost-effective option for projects that require basic thermal insulation.
Features:
- Good thermal insulation.
- Lightweight and easy to install.
- Most economical option.
Best suited for:
- Warehouses and storage units.
- Poultry farms and agricultural facilities.
- Temporary or low-cost buildings.
🔺 Not recommended if:
- The project requires fire resistance or sound insulation.
2. PUR – The Highest Thermal Performance
PUR (Polyurethane) panels offer the best thermal insulation performance among all panel types, with excellent energy efficiency.
Features:
- Superior thermal conductivity.
- Ideal for energy-saving applications.
- Lightweight with high insulating power.
Best suited for:
- Cold storage rooms and freezers.
- Factories and buildings in hot desert climates.
- Projects with high electricity costs and energy-saving goals.
🔺 Considerations:
- More expensive than EPS.
- Moderate sound and fire insulation.
3. Rock Wool – For Fire Safety and Acoustic Insulation
Rock Wool panels are the top choice when fire resistance and sound insulation are key priorities.
Features:
- Highly fire-resistant (up to 1000°C).
- Excellent acoustic insulation.
- Dense and strong structure.
Best suited for:
- Industrial plants and workshops.
- Power stations or hazardous zones.
- Buildings in noisy areas or with strict fire safety codes.
🔺 Considerations:
- Higher cost.
- Heavier weight, which may affect structure and transport.
Quick Comparison: EPS vs PUR vs Rock Wool
| Feature | EPS | PUR | Rock Wool |
| Thermal Insulation | Good | Excellent | Good |
| Sound Insulation | Poor | Moderate | Excellent |
| Fire Resistance | Poor | Poor | Excellent |
| Weight | Very Light | Light | Heavy |
| Cost | Budget-Friendly | Medium to High | High |
Conclusion: Let’s Help You Make the Smart Choice
Choosing the right sandwich panel core material is not a one-size-fits-all decision — it depends on your specific project requirements.
At Hasanoglu, we don’t just manufacture and supply sandwich panels — we work with you to:
- Understand your insulation priorities.
- Balance between cost and performance.
- Deliver optimal results in comfort, safety, and efficiency.
Contact us today and let our technical team recommend the best panel type for your building.