Rock wool roof sandwich panels
Rock Wool Roof Sandwich Panels for Fire-Rated and High-Temperature Industrial Roofing
We manufacture rock wool roof sandwich panels with a non-combustible mineral fiber core (80–200 kg/m³) for projects where roof fire resistance, acoustic performance and high-temperature stability are the controlling specifications. With a melting point above 1000°C and Euroclass A1 achievable, rock wool roof panels are specified for industrial workshops with hot processes, chemical plants, public buildings and any structure where the roof must act as a fire barrier. Factory-direct from Shandong to Chile, Peru, Colombia and Indonesia.
Why Rock Wool Roof Panels from LIAOHE
Rock wool (mineral wool) is fundamentally different from foam-core roof panels. The core is made from basalt rock melted at ~1500°C and spun into fibers. It does not burn, does not produce toxic smoke, and maintains structural integrity at temperatures that would destroy PU, PIR or EPS cores. For roofs over welding bays, foundries, chemical storage, public assembly halls or any building where fire insurance is a major cost driver, rock wool changes the risk calculation.
We laminate the mineral fiber core between corrugated steel sheets in a continuous press line. The result is a rigid roof panel that delivers fire resistance, sound reduction (Rw ~30 dB) and thermal insulation in one product. At 80–200 kg/m³, these panels are 2–3× heavier than PU roof panels — this affects purlin sizing, lifting equipment and container load planning, all of which we handle as part of the quotation.
- Core material: non-combustible mineral fiber (rock wool)
- Product position: roof panel system (3-rib / 5-rib profile)
- Factory-direct manufacturing, Shandong
- Export packing and container-loading support
Technical Specifications
Final production data must follow confirmed drawings and project specifications. Rock wool roof panels are heavier and require careful structural coordination.
| Item | Typical / Available Range | Quotation Note |
|---|---|---|
| Core material | Non-combustible mineral fiber (rock wool), basalt-based | Confirm required density and fire rating class. |
| Panel type | Roof panel (3-rib or 5-rib corrugated profile, overlap joint) | 5-rib recommended for fire-rated roofs; profile improves stiffness at longer spans. |
| Core density | 80–200 kg/m³; 100–120 kg/m³ standard for roof panels | Higher density improves fire resistance, sound reduction and span capacity. |
| Panel thickness | 50 / 75 / 100 / 120 / 150 mm | Selected by fire resistance period (EI), span, and insulation target. |
| Thermal conductivity λ | 0.040–0.045 W/m·K | Higher than PU/PIR; insulation thickness must be calculated per project U-value target. |
| Fire performance | A1 or A2-s1,d0 (EN 13501-1) depending on facing and adhesive | Rock wool core is non-combustible; final classification depends on full assembly. |
| Span capacity (single-span) | 1.2–2.5 m typical at standard loads | Lower than PU at same thickness due to higher self-weight. Span table per project. |
| Minimum roof slope | 5° (8.7%) recommended | Same installation practice as PU/PIR roof panels. |
| Effective width | 1000 mm standard | Covers 1000 mm per panel after side-lap overlap. |
| Steel facing | 0.5–0.8 mm; top sheet PPGI/Galvalume, bottom sheet PPGI/Al-Zn | Thicker steel recommended due to higher panel weight during lifting and installation. |
Fire resistance periods (EI 30/60/90/120) are project-specific and must be confirmed with the full roof assembly. Rock wool roof panels are 2–3× heavier than PU/PIR — purlin sizing, crane capacity and container weight limits must be verified per order.
Applications
Rock wool roof panels are specified where fire safety at the roof plane is the primary decision driver or where insurance/regulatory requirements mandate non-combustible roof construction.
- Industrial workshops with hot processes — welding bays, foundries, heat treatment areas; see our Guatemala 9,560 m² project
- Chemical and petrochemical storage roofs — fire compartment roofs where non-combustible materials are mandatory
- Public assembly and commercial building roofs — where local building codes require non-combustible roof envelope
- Acoustic-sensitive roof applications — generator rooms, compressor halls, manufacturing floors with high ambient noise
Manufacturing, Quality, and Delivery
Rock wool roof panel production requires specialized handling due to core weight, fiber orientation, and the need to maintain lamella integrity during lamination.
Production Line
Continuous lamination with rock wool lamella orientation for maximum compressive strength. Corrugated top sheet is roll-formed in-line before the foaming station. Density and thickness are monitored per batch.
Export Packing & Loading
Heavy-duty packing with reinforced edge protectors, double steel strapping and ISPM 15 pallets. Rock wool roof panels are 2–3× heavier than foam-core: a 40HQ container may carry fewer square meters — we calculate load plans and weight distribution per order.
Certifications & Documents
ISO 9001 certified. Fire test reports (EN 13501-1, GB 8624), material safety data sheets (MSDS), acoustic test reports and span tables provided with quotation.
Project Reference
Our rock wool roof panels are installed in industrial and commercial buildings globally. View all project cases →
Delivery Capability
Factory capacity, lead time and container-loading data for export planning.
Monthly Production Capacity
Rock wool lamination runs are scheduled separately from foam-core lines; typical monthly output is lower per shift due to handling weight.
Typical Lead Time
Standard specifications: 15–20 days after deposit. Custom colors, special coatings or non-standard thicknesses: 25–35 days. We confirm a production slot and vessel plan before order acceptance.
Container Loading
Because rock wool is 2–3× heavier than foam cores, a 40HQ container typically loads 500–700 m² of roof panels.
What We Need for Your Quotation
Send the following with your roof layout drawings and we return a quotation with span table and packing plan within 2–3 working days.
- Panel type (roof) and core material (rock wool)
- Required fire resistance period (EI 30/60/90/120) and Euroclass
- Rib profile: 3-rib or 5-rib
- Panel thickness, core density, and U-value target
- Purlin spacing, purlin section size, roof slope
- Local wind/snow load standard
- Steel facing: thickness, coating type, color (RAL code)
- Panel length and total quantity or roof area (m²)
- Destination country and delivery port
- Accessories: ridge caps, flashings, fasteners, lap-joint sealant
Send Roof Specifications for Rock Wool Panel Quotation
Email your fire rating requirements and roof layout drawings. Our team reviews fire classification feasibility, span capacity with purlin sizing, product configuration and packing plan. Quotation typically within 2–3 working days.