Coxdome Smoke Vents

Coxdome Smoke Vents

Our range of coxdome smokevents…

  • Coxdome Automatic Opening Vent
  • 90° & 140° Opening Angles
  • Call: 01276 451555
  • Email:

The Jet Cox FireJet 165 24V/48V Range provides a smoke and heat exhaust ventilation system for all Commercial and Residential applications.
Supplied factory assembled and factory tested all products are certified to CE EN12101-2. FireJet roof smoke vents not only help to provide smoke extraction in the event of a fire but they also provide day-to-day controllable ventilation. Available in a wide range of sizes (many of which are held in stock) the Jet Cox FireJet range complies with the latest Building Regulations on Fire Safety and can be integrated into any Building Management System.
Linked to a central control panel, complete with a battery backup system in case of mains failure, the control panel can be triggered from either manual override switches local to the ventilator and the ground floor, by dedicated smoke detectors, or by interfacing with a third party smoke detection/fire alarm system.
The FireJet Range is available with CLEAR or OBSCURE polycarbonate glazing to enhance the buildings natural daylight or with a fully insulated ALUMINIUM solid cover.
Upstands can be specified either 300mm Splayed PVC-u or 300mm/400mm/500mm Splayed Metal.


  • Sizes from 1000mm x 1500mm to 1500mm x 2500mm
  • Opens to 165⁰
  • Galvanised Steel Mechanism
  • Glazed Polycarbonate Cover or Solid Insulated aluminium Cover
  • One Mechanism regardless of size
  • Optional Day-to-Day Ventilation Position without additional motor
  • Extremely Low Noise Level
  • Compact 24V/48V DC Motor Unit / Sealed IP54


  • CE EN12101-2 Certified
  • Certificate 1368-CPD-C-002/2009 (I.F.I Institute, Germany)
  • Aerodynamic Free Area up to Aa2.74m² *
  • Snow Load up to 2400N/m²
  • Wind Load up to 1500N/m²
  • Low Ambient Temperature T(-15⁰)
  • Heat Exposure B300
  • Reaction to Fire Class E
  • Opening Speed <60secs

* Aa-Value in m² (aerodynamic effective smoke exhaust surface) according to DIN EN12102-2

Coxdome smoke vent mechanism types…

Single Leaf

Double Leaf

The addition of Cox Building Products Ltd to the JET Group will provide the UK with a strong, innovative organisation and by joining forces they are better fixed to service the UK’s construction industry.


Need help with a Specification? Call 01276 451555 And one of our helpful team members can provide you with the technical information you need…

AOV Coxdome Smoke Vents Benefits

  • An industry recognised ans long established Manufacturer
  • Factory assembled and tested
  • Can be integrated to any building management system
  • Wide range of sizes available
  • High quality SHEV units

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    National Domelight Company
    Room 205
    Basepoint Business Centre
    377-399 London Road
    GU15 3HL