t: 01483 271371   |   Twitter   LinkedIn   YouTube



Es-Louvres are CE marked and fully certified to BS EN12101-2 and compliant to Building Regulation ADB and ADL.

Louvre smoke vents exhaust heat and smoke during fire and are particularly suited to locations exposed to high wind loads, and in areas requiring high security and fall arrest. Louvre air supply vents are generally installed in external walls, providing inlet air to replace air exhausted by the smoke vents.

  • Fully certified to BS EN12101-2
  • Compliant with Building Regulation ADB & ADL
  • Available in a wide range of sizes
  • Available with polycarbonate glazing or solid blades
  • High security
  • Impact resistant to EN1873 1200 joules
  • Mill finish aluminium or polyester powder to a standard RAL colour
  • Excellent resistance to wind load

Shapes and sizes

Es-Louvre smoke ventilators and turrets and grills are available in a wide range of sizes and can be manufactured to virtually any sizing requirement to fulfil your need.

Click here to see the full Size Chart


The louvre blades are available as 16mm thick polycarbonate multiwall or 20mm thick aluminium insulated which can be mill finished or powder coated to a standard RAL colour.

Thermal specification
Thermal transmission (W/m²K)*
16mm Polycarbonate Multiwall 1.77
20mm Solid Aluminium Louvres 1.75


Es-Louvre upstands are manufactured from aluminium and insulated with 20mm rigid polyurethane insulation.  They are available as curb adaptors to suit existing or new builder’s upstands, or in a range of heights from 300mm to 500mm suitable for most types of flat roofing membrane.  Alternatively they can be manufactured to install directly to profiled roofing or proprietary glazing system.  They are available as mill finish or coated to a standard RAL colour.

The top flange incorporates a profiled details for a water removal drainage system.

Thermal Transmission
Upstand Type U-Value (W/m²K)
Es-Louvre Upstand Aluminium 300-500mm 1.38
Es-Louvre Upstand Adaptor 150mm 1.38


Es-Louvres are opened and closed by means of 24 volt electric actuator.  They can also be used to open ventilators for day-to-day ventilation purposes.  It may be necessary to connect the ventilation system to the control panel with the wind or rain sensors.


Es-Louvres may be installed to open as a means of natural ventilation.  They can be supplied with their own Em-Vent Control Panel or integrated with the Building Management System (BMS).  There are many accessories available as part of the Es-Louvre package.

Click here for full details on controls.


Louvre smoke vents are CE certified to EN12101-2 and have been independently tested by an accredited third party.  They are impact resistant to EN1873 12000 joules.

To view the DoP, click here.


When installed in accordance with the manufacturer’s recommendations, Es-Louvres are expected to exceed the life of the roof covering.  Es-Louvres are guaranteed against the effects of defective design, materials or construction for ten years, with an electrical components guarantee for 24 months, subject to certain conditions. ‘Special Project’ guarantees are available. For further details contact us.


Contact us and
request brochure