Thor Duct EvoThor Duct

Thor Duct® Evo – Certified Fire-Rated Ductwork for Compact Spaces

Lightweight, space-saving, high-performance fire-rated ductwork

Thor Duct® Evo is a thinner, lighter configuration of the Thor Duct® range—designed to outperform traditional systems in tight or congested spaces. Using 30% less metal and 70% less insulation than standard systems, it simplifies installation while maintaining exceptional fire resistance. Factory-wrapped with 25mm calcium silicate insulation in a durable silver foil finish, Thor Duct® Evo eliminates external stiffening, making it ideal for compact plantrooms, shafts, and retrofit projects.

Key Features

• Factory-insulated duct sections with 25mm calcium silicate wrap

• Max duct size: 1250mm x 1000mm

• Lightweight construction: 30% less metal, 70% less insulation

• 30mm flange-to-flange system—no site-applied chemicals required at joints

• CE-marked for smoke (EN 12101-7, Reg 305:2011)

• One system for fire, smoke, pressurisation, and passive ducting

• Compatible with tested access doors, drains, and smoke grilles

• Simplified penetration details—no plasterboard patrices

• Designed for compact plantrooms, shafts, or retrofits

Suitable Applications

• Smoke control (multi-compartment) EI60 S 1500multi

• Fire-rated ducting (Type A & B) EI60

• Passive ventilation ducts (Type A EI120, Type A & B EI60)

• Pressurisation ducts (Type A EI120)

• Projects requiring EI60–EI180 fire classification

• Lower temperature smoke: tested 600°C for 120 minutes

Technical Classification

• Fire tested to: EN 1366-1, EN 1366-8

• Classified under: EN 13501-3 (fire), EN 13501-4 (smoke)

• Suitable for: Type A & B fire conditions

• Multi-compartment: EN 1366-8 (1500Pa)

• Smoke Class: S

• Ventilation standard: EN 1507, Class C

• Fully tested with access doors, drains, and smoke grilles

Why Choose Thor Duct® Evo?

For projects requiring EI60–EI180 performance in restricted spaces, Thor Duct® Evo offers:

• Space-saving installation without compromising safety

• Reduced complexity on site

• Compatibility with a full range of ducting accessories

Reach out to your licensed manufacturer today to save time and space on your next project.