Smoke ExtractSmoke Extract

Thor Duct® Smoke Extract Ductwork provides a reliable fire safety solution designed to safely extract smoke in the event of a fire. Smoke is a leading cause of injury and fatality in fire incidents, and effective smoke extraction ductwork helps maintain escape routes and supports firefighting operations.

Why Choose Thor Duct® Smoke Extract

• Developed as part of the Thor Duct® fire safety system — extensively tested and fully compliant with the EN12101-7 standard.

• Designed to offer controlled smoke extraction and maintain safe evacuation routes.

• Tested in both single and multi-compartment configurations in line with EN1366-9 and EN1366-8 requirements (single and multi-compartment systems).

• Suitable for installation in a variety of structures including stud partitions, block walls and concrete floors.

Key Features

Comprehensive EN Testing

• Complies with EN12101-7, now a key European standard for smoke extract systems. Tested in flexible walls and suitable for multiple installation scenarios including plasterboard and aerated concrete.

Performance Classes

• Available for both single-compartment and multi-compartment smoke extract applications.

• Smoke extract systems are tested for controlled smoke movement and system integrity.

Robust Construction

• Manufactured in high-quality galvanized steel with flanges and stiffeners.

• Insulation includes a calcium magnesium silicate blanket tested as part of the complete system.

Installation Standards

• Installed under third-party certification (such as FIRAS) in compliance with DW144.

• Provides fully tested penetration seals for walls and floors.

Technical Specifications

Maximum Dimensions:

• Multi-compartment smoke duct: 1250 × 1000 mm

• Single-compartment smoke duct: 1900 × 1700 mm

• Fire resisting ducts (non-smoke): up to 2500 × 1250 mm

• Round ducts: up to Ø1000

Applications

Smoke Extract Ductwork is ideal for:

• Stairwells

• Lift shafts and escape routes

• Multi-zone fire compartmentation

Ensuring smoke is managed safely and that the integrity of fire escape paths is maintained in building designs.

Standards & Compliance

Fully tested and compliant with:

• EN12101-7

• EN1366-8 (multi-compartment)

• EN1366-9 (single-compartment)