Product Overview
The Rock Wool Sandwich Roof Panel is a prefabricated high-performance roofing material designed for industrial steel structures, EPC projects, and fire-safe buildings.
It is composed of:
- Two layers of pre-painted galvanized steel sheets (PPGI / PPGL)
- A high-density basalt rock wool insulation core
- Fully automated continuous lamination bonding technology
This system provides a complete roofing envelope solution combining fire safety, thermal insulation, acoustic performance, and structural stability.
Engineering Technical Data
|
Item |
Specification |
|
Panel Type |
Rock Wool Sandwich Roof Panel |
|
Width |
960 / 1000 mm |
|
Length |
Custom cut |
|
Thickness |
50–200 mm |
|
Steel Thickness |
0.3–0.8 mm |
|
Core Density |
80–150 kg/m³ |
|
Fire Rating |
A1 Non-combustible |
|
Thermal Conductivity |
≤ 0.043 W/m·K |
|
Sound Insulation |
25–35 dB |
|
Service Life |
25–40 years |
Key Performance Advantages
Certified A1 Fire Safety Performance
Extreme Heat Resistance: Formed from premium basalt stone melted at temperatures exceeding 1000°C.
Zero Flame Spread: Certified Class A1 non-combustible; provides up to 2-hour system fire rating to protect structural steel frames from collapsing.
Zero Toxic Emissions: Emits no smoke, flame droplets, or toxic gases during thermal exposure.
Verified Thermal Insulation & Structural Integrity
Energy Efficiency: Low thermal conductivity (0.035–0.043 W/m·K) drastically cuts HVAC cooling and heating loads.
Anti-Sagging Core: Advanced fiber orientation and ultra-low shot content (slag beads) guarantee the insulation core will not sag, settle, or delaminate under extreme temperature cycles.
Advanced Acoustic Noise Reduction
Impact Noise Dampening: The dense, open-porous rock wool fiber matrix absorbs airborne soundwaves and significantly dampens structural rain noise on metal roofs.
Transmission Loss: Delivers a 27–35 dB acoustic barrier, ideal for large-scale manufacturing workshops.
Engineered Weather, Wind & Corrosion Resistance
High Wind Load Design: Superior composite bonding strength prevents steel skin delamination under heavy wind loads or negative pressure cycles in coastal and desert zones.
Coating Options: Customized topcoats including PVDF for high-corrosion chemical zones and SMP for extreme UV environments.
Application Scope
Industrial Facilities
Steel structure factories
Manufacturing plants
Heavy industrial workshops
Logistics & Warehousing
Distribution centers
Large logistics hubs
Industrial storage buildings
High Fire Safety Projects
Chemical plants
Power generation facilities
Hazardous material warehouses
Commercial & Infrastructure
Airports
Exhibition centers
Railway stations
Material Selection
|
Material |
Fire Safety |
Insulation |
Cost |
Application |
|
Rock Wool |
⭐⭐⭐⭐⭐ |
⭐⭐⭐⭐ |
Medium |
Fire-safe industrial buildings |
|
PU / PIR |
⭐⭐⭐ |
⭐⭐⭐⭐⭐ |
High |
Cold storage / insulation priority |
|
EPS |
⭐⭐ |
⭐⭐⭐ |
Low |
Budget non-critical buildings |
Global Project Experience
Wanxiang rock wool panels are engineered for and field-tested in diverse global climates:
35,000 sqm Logistics Hub | Middle East (High UV & Desert Heat Resistance)
Industrial Steel Mill Complexes | Southeast Asia (High Humidity & Corrosion Protection)
Mega Agricultural Processing Plants | South America (Strict Fire & Hygiene Compliance)
Mega Agricultural Processing Plants | South America (Strict Fire & Hygiene Compliance)
Customization Options
Thickness: 50–200 mm
Steel coating: PE / SMP / PVDF
Color: RAL system
Edge system: hidden / exposed / waterproof design
Fire & insulation optimization
Packaging & container loading optimization
Supply Capability & Trade Terms
MOQ
Project-based (Flexible allocation for large/medium projects)
01
Lead Time
15 – 25 Days (Depending on specification and volume)
02
Trade Terms Supported
FOB / CIF / CFR / EXW
03
Payment Terms
T/T, Irrevocable L/C at sight
04
Packaging
High-durability waterproof protective film + reinforced steel pallet bundling for safe sea transit.
05
Why Global Buyers Choose Wanxiang
Export Footprint: Proven supply capabilities with successful deliveries to 50+ countries.
Mass Production Capability: Operating advanced continuous production lines ensuring stable lead times for mega-scale projects.
Strict Quality Control: Complete tracking from raw steel coil and rock wool density tests to adhesion peel-strength verification and pre-shipment reports.
EPC-Level Engineering Support: We don't just ship panels; we provide joint detail designs, optimization for structural drawings, and installation support.
Certificates
FAQ
Q: Can I get full technical data sheets and official fire certificates for project bidding?
A: Yes. We provide complete technical data packets, including certified EN 13501-1 test reports and factory quality certificates, to support your submittal process.
Q: What thickness is recommended for industrial applications?
A: 50mm–100mm is standard for normal industrial roofs. For regions with strict climate-control requirements or high fire risks, 100mm–150mm is highly recommended.
Q: How do you protect the panels from damage during ocean shipping?
A: Panels are packed into high-density bundles wrapped in protective plastic film, secured with steel strapping, and fitted with base skids for easy forklift handling. We optimize container layouts to prevent shifting.
Q: Do you support customized structural lengths?
A: Yes. All panel lengths are customized based on project requirements, bounded only by standard 40ft HQ container loading limits (typically up to 11.8 meters).
Q: What is your Minimum Order Quantity (MOQ) and standard production lead time?
A: Our standard MOQ is 500 square meters per specification. For standard colors and thicknesses, our fully automated continuous production lines allow us to complete and dispatch orders within 15 to 20 days after deposit confirmation, ensuring your project stays on schedule.
Q: Can we request custom steel colors, and do you provide samples for engineering approval?
A: Absolutely. We can match any standard RAL color code to fit your architectural design. We also provide free material sample kits (including steel facers and rock wool core) for your engineering team's physical inspection and approval before mass production begins.
Call to Action
Get Your Project Quotation in 24 Hours
FOB / CIF price available
Technical datasheet provided
Engineering support included
Send Your Project Drawings
We will provide:
Roofing system solution
Material optimization plan
Cost reduction proposal
EPC & Bulk Orders Welcome
Priority response for large industrial projects worldwide
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