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Product images: the manufacturer (official).
Fire-rated panels · roofs
Stone wool sandwich roof panels
A ribbed steel roof panel with a non-combustible stone wool core – fire, thermal and acoustic performance for portal-frame roofs.
- Stone wool, non-combustible
- Core
- Roofs of steel buildings
- Use
- Per tested roof system
- Rating
Supplied by World Steel with your steel building or on its own – one order, one shipment, one partner.
Overview
About Stone wool sandwich roof panels
Roof panels with stone wool cores are used where the building code, the fire engineer or the insurer limits combustible roof materials.
Fire resistance of roofs is tested to EN 1365-2 and classified under EN 13501-2; external fire performance of roofs is a separate test (EN 13501-5). Results apply to the tested span, fixings and supports.
Spans and purlin spacing come from the manufacturer’s load tables for the selected panel thickness.
Key benefits
- Non-combustible insulation in the roof
- Supports insurer and code requirements
- Thermal and rain-noise performance
- Spans between purlins of the steel frame
World Steel · building envelope hub
How we use Stone wool sandwich roof panels in steel buildings
World Steel coordinates purlin spacing, panel span and fixing pattern with the roof structure we fabricate.
Product-specific test reports, classification reports and certificates are supplied for the product selected for each project – this page describes the product type, not a certified product.
- 01Specified with the structure – thickness, density and facing matched to the roof, wall and fire design.
- 02Quantities taken from the same 3D model as the steel, purlins and cladding.
- 03Packed and shipped with the steel package – one delivery schedule to site.
Applications
Where Stone wool sandwich roof panels is used
- Warehouses and logistics centres
- Manufacturing plants with fire-load processes
- Roofs over fire compartments
Technical data
Stone wool sandwich roof panels – technical properties
Typical properties and standards
| Property | Unit | Value |
|---|---|---|
| Profile | — | Trapezoidal steel top skin, flat or lightly profiled liner |
| Reaction to fire | — | EN 13501-1 · ASTM E84 |
| Fire resistance | — | EN 1365-2 / EN 13501-2 – per tested system |
| External fire | — | EN 13501-5 (roof exposure) – per product |
| Insurer approvals | — | FM 4880 / 4881 – where required |
Values as published by the manufacturer for this market. Always check the current data sheet and the approvals required for your project before ordering.
Fire-rated panels
Related products
Fire-rated panels · wallsStone wool sandwich wall panelsView product →
Fire-rated panels · interiorsFire-rated partition and ceiling panelsView product →
Fire-rated panels · compartment wallsFire compartment wall systemsView product →← Fire-rated sandwich panelsFire-Rated Building Systems – Panels, Doors, Glazing, Shutters and Curtains →
FAQ
Frequently asked questions
Why choose stone wool rather than PIR or EPS roof panels?
Stone wool is non-combustible, so it does not feed a fire or drip; it is often required by insurers or codes for larger industrial roofs. PIR and EPS panels have their own classifications and limits.
Is this product certified?
Certification belongs to a specific manufacturer’s product or tested system. We supply the test report, classification or listing accepted in your market for the product selected – it is confirmed per project, never assumed.
One partner for structure and envelope
Send us your drawings or bill of quantities – we quote the steel, insulation, boards and ceilings together and ship them as one package.