PUF vs PIR vs Rockwool: Which Insulated Panel Is Best?
Compare PUF, PIR, and Rockwool panels by insulation performance, fire safety, cost, and application fit to choose the right panel for your project.
Introduction
Choosing the right insulated panel impacts energy costs, fire safety compliance, and long-term durability. This guide compares PUF panels, PIR panels, and Rockwool panels so you can select the right system for your facility.
Quick Comparison Snapshot
| Parameter | PUF | PIR | Rockwool |
|---|---|---|---|
| Thermal Conductivity | 0.024 W/mK | 0.022 W/mK | 0.037–0.040 W/mK |
| Fire Rating | Class E | Class B-s1,d0 | Class A1 (Non-combustible) |
| Weight | Light | Light | Heavy |
| Cost | Economical | Mid-High | Higher |
| Best For | General industrial | Fire-safe projects | High fire compliance |
PUF Panels: Best for Energy Efficiency & Value
PUF panels deliver excellent thermal insulation at an economical cost. They are widely used in industrial sheds, warehouses, and cold storage facilities where energy efficiency matters most.
- Thermal conductivity ~0.024 W/mK
- Lightweight and fast to install
- Ideal for general industrial roofing and walls
- Best ROI for large-area buildings
PIR Panels: Better Fire Performance with Strong Insulation
PIR panels are chemically modified polyurethane panels designed for improved fire resistance. They are commonly selected for pharmaceutical, cold chain, and compliance-driven facilities.
- Thermal conductivity ~0.022 W/mK
- Improved fire rating vs PUF
- Recommended for pharma, food processing, and cold storage
- Balances insulation and safety
Rockwool Panels: Maximum Fire Safety
Rockwool panels are non-combustible and preferred where strict fire safety standards apply. They are heavier and offer lower insulation performance compared to PUF/PIR, but provide the best fire protection.
- Fire rating Class A1 (non-combustible)
- Lower insulation vs PUF/PIR
- Higher density and weight
- Suitable for high-risk industrial zones
How to Choose the Right Panel
- Choose PUF for general industrial buildings and cost-effective insulation.
- Choose PIR when fire performance is required without sacrificing insulation.
- Choose Rockwool for maximum fire safety and compliance.
PHOENIXX Recommendation
PHOENIXX helps you select the best panel type based on project requirements, compliance needs, and total lifecycle costs. Explore our insulated panel range or request a technical consultation.
Need help selecting the right panel? Request a project consultation with our engineering team.
Frequently Asked Questions
Which panel has the best insulation performance?
PIR panels have the lowest thermal conductivity (~0.022 W/mK), followed closely by PUF (~0.024 W/mK). Rockwool provides lower insulation compared to foam-based panels.
Which panel is best for fire safety?
Rockwool panels are Class A1 non-combustible and offer the highest fire safety. PIR panels provide improved fire performance compared to standard PUF.
Which panel is most cost-effective?
PUF panels are generally the most cost-effective choice for large industrial buildings, offering strong insulation performance at economical pricing.
Are PIR panels suitable for cold storage?
Yes, PIR panels are recommended for cold storage projects where both insulation and fire safety compliance are required.
Does PHOENIXX supply all three panel types?
PHOENIXX supplies PUF, PIR, and Rockwool panels and helps clients select the right option based on compliance and performance needs.