Traffic & Fire Protection
Fire-rated insulation materials for building fire protection, cable shaft sealing, and transportation applications meeting international fire resistance standards.
Overview
Fire protection is not optional — it is a life safety requirement. Whether insulating structural steel, compartment walls, ventilation ducts, or cable trays, the insulation material must deliver proven fire resistance, prevent flame spread, and maintain structural integrity under fire conditions for the rated period.
Rosetexwool rock wool and ceramic fiber solutions offer Class A1 non-combustible fire performance with melting points above 1000°C. Our products are tested to international fire resistance standards including BS 476, EN 1366, ASTM E119, and GB 14907, providing reliable passive fire protection for buildings, tunnels, and industrial facilities.
Material Comparison
Selecting fire-protection insulation for buildings, transport infrastructure and vehicles means balancing fire rating, service temperature and weight. How rock wool compares with the materials used across traffic and fire-protection projects:
| Material | Service temperature | Fire rating | Thermal conductivity | Relative cost | Key use |
|---|---|---|---|---|---|
| Rock wool | -200 to 650°C | A1 non-combustible | 0.032-0.040 W/(m·K) | Low | Curtain-wall fire stopping, fire barriers |
| Ceramic fiber | to ~1430°C | A1 | ~0.03 | Higher | High-temp tunnel & furnace linings |
| Calcium silicate | to ~650°C | A1 | ~0.05-0.06 | Medium | Rigid boards, damp areas |
| Glass wool | to ~250°C | A1 | ~0.03-0.04 | Low | Lightweight acoustic & fire linings |
| PIR / PU foam | -50 to 150°C | B-s1,d0 (PIR) / B2 (PU) | 0.022-0.027 | Medium | Thermal-only; needs fire barriers |
For most traffic and fire-protection assemblies rock wool delivers the best balance: A1 non-combustible, mechanically strong and cost-effective, while ceramic fiber handles extreme temperatures in tunnel and furnace zones.
Application Scenarios
Typical Traffic & Fire Protection Application Scenarios
Across buildings, transport infrastructure, vehicles and marine structures, rock wool, ceramic fiber and calcium silicate deliver certified fire safety and thermal control:
- Curtain-wall fire stopping — rock wool slabs fill the cavity between floor slabs and the facade, forming a fire and smoke barrier at every floor line (tested to EN 1364 / ASTM E2307).
- External wall insulation fire barriers — non-combustible rock wool break strips interrupt combustible EIFS layers on high-rise facades.
- Tunnel lining & escape-route protection — ceramic fiber and rock wool boards line tunnel crowns and evacuation corridors, protecting escape paths.
- Marine fire divisions & A-60 bulkheads — rock wool is the standard SOLAS-compliant material for A-60 class bulkheads and decks; calcium silicate boards (100% asbestos-free, salt-spray resistant) are widely used for ship fire-division walls and LPG-tank fire barriers.
- Ship exhaust & power-system insulation — ceramic fiber jackets insulate marine exhaust uptakes and boiler piping to 1200°C, cutting heat radiation in engine rooms.
- EV battery-pack thermal runaway protection — rock wool fire layers and calcium-silicate nano super-insulation boards sit between cells and modules. The nano board meets GB38031-2025, withstanding 2000°C+ transient shock and giving 2-hour no-ignition protection at ~0.03 W/(m·K).
- Turbocharger & exhaust heat shields — ceramic fiber shields wrap turbochargers and heavy-machinery exhausts (to 1200°C), improving safety and under-hood efficiency.
- Energy-storage system safety — calcium-silicate boards block thermal propagation from a failing battery cell to other units in storage cabinets.
- Rail & rolling-stock interiors — rock wool and glass wool meet EN 45545 fire-safety requirements for train ceilings, walls and underfloor insulation.
- Steel-structure fireproof encapsulation — rock wool boards clad exposed steel beams and columns, preserving load capacity during a fire.
Material choice follows the hazard: for facade and compartment fire stopping rock wool is preferred for its rigidity and A1 rating; for high-temperature tunnel, exhaust and turbocharger zones ceramic fiber is specified (to 1200°C); in humid, salt-spray marine areas calcium silicate adds moisture and corrosion stability, and its nano super-insulation board is the go-to for EV-battery and energy-storage fire safety. Rosetexwool supplies cut-to-size boards, slabs, blankets and jackets with the required fire-certificate documentation for each project.
Related Articles
Why Rosetexwool
Key Benefits
Why Traffic & Fire Protection operations choose Rosetexwool insulation solutions.
Certified Fire Performance
Products tested to international standards — CE-marked rock wool with Euroclass A1 reaction to fire classification.
No Smoke or Droplets
Rock wool and ceramic fiber produce no smoke and no burning droplets when exposed to fire — critical for safe evacuation.
Compartment Integrity
Properly installed fire stopping maintains the fire-resistance of rated walls and floors, preventing fire spread.
Asset Protection
Fire-rated cable tray protection keeps critical circuits operational during a fire for safe shutdown and emergency response.
Support
Frequently asked questions
What fire rating can rock wool board achieve? +
Depending on thickness and installation method, rock wool board systems can provide 30 minutes to 4 hours of fire protection for structural steel, as tested to BS 476 Part 21 or EN 13381-8. We recommend consulting local fire engineering codes for required thickness.
Is ceramic fiber acceptable for building fire protection? +
Ceramic fiber is primarily used in industrial and high-temperature fire protection applications. For general building fire protection, rock wool is more commonly specified due to its bio-solubility and broader regulatory acceptance. We can advise on the most appropriate product for your application and jurisdiction.
Do you provide fire-rated duct insulation systems? +
Yes. We supply rock wool board and blanket systems for both horizontal and vertical fire-rated ventilation ducts tested to EN 1366-1 and BS 476 Part 24. Contact us with your duct dimensions and required fire rating period.
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