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Article Date: 2nd November 2016

Fläkt Woods - Introducing Fläkt Woods Smoke Vent Shaft

Smoke Vent Shaft - Smoke Extract - Stairwell Extract Protection

Flakt Woods - Smoke Vent Shaft

A modular, Fire Engineered solution for single-shaft stairwell protection using smoke extract.

A smoke shaft is a common method for ventilating lobbies of tall buildings, used to maintain tenable conditions in the common escape routes in the event of a fire.

Fläkt Woods now offers a simple packaged solution including fans, controls, lobby vent, sensors, actuators and stairwell ventilators.


  • Meets ErP 2015 criteria for dual-use fans delivering high efficiency operation reducing carbon emissions
  • Prefabricated assembled solution, significantly reduced risk of components being lost & needing replacement
  • Packaged solution allowing for minimal plant lifts to the roof, minimal wiring on site and avoids the need for coordination and sourcing from separate suppliers of fans, controls, ductwork and dampers
  • Configured using an easy-selection tool, making our expertise and knowledge accessible

Did you know our Smoke Shaft Vent System has been approved by LABC? What does that mean? Local Authority Building Control approval means that the building control sign-off is a quick and pain free as the system is pre-approved in its entirety.

Although others have LABC approval for the system concept, they would need to detail exactly how the system has been designed for each project, typically providing CFD Analysis as part of this submittal.

LABC approval of the common system design allows for this process to be shortened and de-risked as CFD Analysis has been completed for the minimum and maximum extents of our system as well as for a database of projects designed to the standard solution.

Key Benefits:

  • De-mystifying the design process
  • Suitable for single-stair buildings over 11m in height
  • Pre-approved system design with LABC

We have also recently released the NEW Smoke Shaft Selection tool helping to de-risk the early stage design…available now through our fan selector software.

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