Natural louvred ventilators

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Airlite highly insulated ventilator

The Airlite ventilator provides exceptionally high insulation and low air leakage as well as excellent aerodynamic and acoustic properties. It can provide inlet and extract ventilation as well as the entry of natural daylight.

  • Energy efficient - Airlite has been designed with the Energy Performance in Buildings Directive in mind, providing exceptionally high insulation and low air leakage.
  • High aerodynamic, thermal and acoustic performance - Airlite is aerodynamically efficient. It is highly insulated and is exceptionally air tight. It also provides a high degree of sound insulation.
  • Unique optional movable wind baffle – A wind baffle is installed to overcome side wind effects. This closes when the ventilator closes and so is invisible from the outside when the ventilator is closed, thereby enhancing its appearance.
  • Wide range of applications - Airlite is classed as a dual purpose ventilator, providing both day to day and smoke control ventilation. Airlite can also be installed in the vertical either for low level air inlet or for high level extract.
    It allows the entry of natural daylight through its polycarbonate blades. There are pneumatic or electric controls and a wide range of accessories and finishes.
  • Easy to install - Airlite is delivered fully assembled to site and may be installed at any angle from the horizontal to the vertical. It has a wide range of base profiles to suit all sheeting, curb or glazing applications. A variable flanged variant is available for vertical installation into curtain walling, glazing or prepared openings.
  • Durable - Airlite is manufactured from tough, corrosion resistant aluminium alloy, with stainless steel fixings.
  • Certified performance - Airlite has been exhaustively tested and certified to EN 12101-2: 2003 in accredited third party test laboratories and is CE marked.
  • Quality of manufacture - Airlite is manufactured under strict quality control to ISO 9001. Each unit is given a functional test before despatch.
  • We are at your service - We provide a pre-order design service. We also offer complete project management, installation, wiring and commissioning, which means that we take complete responsibility to ensure that the product is in full working order within one package of works.

    Please contact us for more information relating to the application, specification, installation or servicing of this product.
Coltlite louvred facade ventilator

The Coltlite louvre window is a natural louvred ventilator for installation into the façade for both day to day and smoke ventilation. It can provide an elegant means of providing ventilation.

Its form and function makes it particularly suited to naturally ventilated buildings where good aerodynamic and measured free area ventilation is required while achieving high acoustic, thermal and aerodynamic performance. Whilst it is primarily designed as a glazed element of the building envelope, it can also be applied as a high specification fire, smoke and air control damper. Typical applications for the Coltlite louvre window are hospitals, schools, shopping centres, apartments and commercial buildings.

  • A wide range of applications – Most versions of Coltlite are classed as dual purpose ventilators, providing both day to day and smoke control ventilation. It can also be installed either for low level air inlet or for high level extract. Coltlite is also often used as a termination piece for large ducted or air handling systems. Glass versions allow the entry of natural daylight, and a wide range of infill panels are available. Options include pneumatic, electronic or manual controls and a wide range of louvre types, accessories and finishes.
  • High performance - Coltlite has high aerodynamic, acoustic and thermal performance, and has a high resistance to the effects of fire. See the leaflet for further details.
  • Certified performance – All versions of Coltlite except CLS 45 have been exhaustively tested and certified to EN 12101-2: 2003 as dual purpose ventilators in accredited third party test laboratories. In addition all ventilators have been tested to EN 14351-1 which guarantees their performance as façade elements. All ventilators are CE marked accordingly.
  • High performance in fire - One of the fire consultant’s main design considerations is to make sure that any smoke emitted by a fire is evacuated from the building in a controlled fashion.  Special arrangements need to be considered, in particular for escape routes such as in stairwells.  Coltlite is very suitable for protecting escape routes since it has a high aerodynamic efficiency, opens quickly, has large openings and does not get in the way of people trying to leave the building.
  • Easy to install - Coltlite is delivered fully assembled to site into a structural opening or curtain walling. It must be installed in the vertical. It has a wide range of base profiles to suit most sheeting, curb or glazing applications.
  • Safe in operation – With electric versions there is an optional device to reduce the speed and force of the closing louvres in order to reduce the risk of finger trapping.
  • Durable – The frame is manufactured from tough, corrosion resistant aluminium alloy, with stainless steel fixings.
  • Quality of manufacture - Coltlite is manufactured under the ISO 9000 quality standard. Each unit is given a functional test before despatch.
  • Aesthetic design – Coltlite uses narrow framework and motors can be hidden within the frame or are small in size.
  • We are at your service - We provide a pre-order design service. We also offer complete project management, installation, wiring and commissioning, which means that we take complete responsibility to ensure that the product is in full working order within one package of works.

    Please contact us for more information relating to the application, specification, installation or servicing of this product.
EuroCO / Seefire louvred smoke ventilator

The EuroCO / Seefire vent provides both inlet and extract smoke ventilation as well as the entry of natural daylight for most kinds of industrial and commercial buildings. It is dual purpose, suited to natural day-to-day ventilation and smoke control ventilation.

  • A wide range of applications - EuroCO / Seefire can be installed in the vertical either for low level air inlet or for high level extract. Polycarbonate and glass versions allow the entry of natural daylight. EuroCO / Seefire smoke vent is also often used as a termination piece for large ducted or air handling systems. There are pneumatic, electric or hand controls and a wide range of louvre types, accessories and finishes. 
  • High performance - Seefire smoke vent is aerodynamically efficient and has a high resistance to weather. 
  • Easy to install - EuroCO / Seefire is delivered fully assembled to site and may be installed at any angle from the horizontal to the vertical. It has a wide range of base profiles to suit all sheeting, curb or glazing applications. Bases are customised to suit the installation into either curtain walling, glazing or prepared openings.
  • Durable - EuroCO / Seefire is manufactured from tough, corrosion resistant aluminium alloy, with stainless steel fixings. Louvres pivot on double nylon UV- resistant bearings.
  • Certified performance - EuroCO / Seefire has been exhaustively tested and certified to EN 12101-2: 2003 in accredited third party test laboratories and is CE marked. 
  • Quality of manufacture - EuroCO / Seefire is manufactured under the ISO 9000 quality standard. Each unit is given a functional test before despatch.
  • Design service - Colt provides a pre-order design service. Please contact Colt for more information relating to the application, specification, installation or servicing of EuroCO /Seefire ventilators.
FCO louvred wall ventilator

FCO wall vents are suited to most industrial and commercial buildings and are among the most cost-effective kinds of natural ventilators.

  • Wide range of applications - FCO is a dual purpose ventilator, providing both day to day and smoke control ventilation. FCO is generally installed in the vertical for either air inlet or extract.
  • Polycarbonate and glass versions allow the entry of natural daylight. FCO is also often used as a termination piece for large ducted or air handling systems. There are pneumatic, electronic or hand controls and a wide range of louvre types, accessories and finishes.
  • High performance - FCO is aerodynamically efficient and has a high resistance to weather.
  • Easy to install - FCO is delivered fully assembled to site. It has a wide range of base profiles to suit most kinds of curtain walling, glazing or prepared openings.
  • Durable - FCO is manufactured from tough, corrosion resistant aluminium alloy, grade 3005 in accordance with EN573-3, with stainless steel fixings. Louvres pivot on double nylon UV- resistant bearings.
  • Quality of manufacture - FCO wall vents are manufactured under the ISO 9001 quality standard. Each unit is given a functional test before despatch.
  • Design service- Colt provides a pre-order design service. Please contact Colt for more information relating to the application, specification, installation or servicing of FCO systems.
Labyrinth low profile natural extract ventilator

Labyrinth provides continuous extract or inlet ventilation for most kinds of industrial buildings, providing high volume ventilation. It has aerodynamically designed louvers to provide continuous weatherproof ventilation. The unit can be used for air extract and air inlet and can be adapted to accept sound absorbers.

  • Efficient and weather resistant - Labyrinth is efficient in operation, since it has a large free ventilation area, and it provides continuous ventilation in all weather.
  • Various fixing options - Labyrinth can be installed onto a roof to provide high level extract.
  • Easy to install - Labyrinth is delivered to site in breakdown form or completely assembled  for easy local assembly.
  • Minimal weight placed on the building - Labyrinth is very low silhouette and low in weight and this means that less supporting steelwork is required than comparable ventilators. It is very well suited for retrofit, since the weight of the roofing panels removed can be around the same as the weight of the ventilator. It is also suitable for places where there are strong winds.
  • Excellent light entry – view of the sky visible through the blades
  • Durable - Labyrinth is manufactured from tough, corrosion resistant aluminium. It is manufactured under the ISO 9001 quality standard.
  • Exhaustively tested – Labyrinth has undergone extensive testing for airflow performance and weather tightness.
  • Motorised louvre option - An optional shutter version is operated either pneumatically or electrically, and ensures that air leakage is kept to a minimum when ventilation is not required.
  • We are at your service - We provide a pre-order design service. We also offer complete project management, installation, wiring and commissioning, which means that we take complete responsibility to ensure that the product is in full working order within one package of works.

    Please contact us for more information relating to the application, specification, installation or servicing of this product.
MoffittVent tulip-style natural extract ventilator

MoffittVent provides continuous extract ventilation for most kinds of industrial buildings, providing high volume ventilation. It is aerodynamically designed to provide continuous weatherproof ventilation. The unit can be adapted to accept sound absorbers.

  • Efficient - MoffittVent is efficient in operation and provides continuous ventilation in all weather. It has 100% free area to face area ratio. The ventilator is not affected by the direction or velocity of the wind - in fact its performance will increase in higher wind conditions.
  • Weather resistant– The ventilator’s design will not allow water entry into the building at any wind velocity. All water is collected by integral drain gutters and downspouts and re-directed out to the roof.
  • The ventilator has been designed to withstand wind speeds as high as 130 MPH and can be easily designed for higher wind speeds if required.
  • Optional damper – An optional manual or motorized damper ensures that air leakage is kept to a minimum when ventilation is not required.
  • Various fixing options - MoffittVent can be installed onto most kinds of roofs, either at the peak, down slope or flat.
  • Easy to install - MoffittVent is delivered to site in breakdown form for easy local assembly.
  • Durable - MoffittVent is manufactured from tough, corrosion resistant materials.
  • Low in maintenance – MoffittVent requires virtually no maintenance.
  • Design service- Colt provides a pre-order design service. Please contact Colt for more information relating to the application, specification, installation or servicing of MoffittVent systems.
SiteGuard anti-fall through guard

The SiteGuard safety guard has been developed to prevent a person from falling through a natural ventilator. SiteGuard is suitable both for new installations and for retrofits. It has been exhaustively third party tested to the latest regulations.

SiteGuard demonstration video (English)

SiteGuard demonstration video (deutsch)

  • Reliable safety - Thanks to its sophisticated lattice structure, SiteGuard can absorb the high forces placed on it by a person falling onto it due to its special design. Should a person fall onto the guard, the forces generated are absorbed by it and they are not transferred onto the building structure.
  • Third party tested - SiteGuard has been tested in accordance with the GS-Bau 18 standard. GS Bau is one of the main professional associations which tests building elements for their ability to prevent people from falling through such elements. The testing regime includes the examination and assessment of the sustainability of components and glazing.
  • Exceeds current regulations - GS- Bau 18 requires a successful dissipation of ≤ 300 joules of energy. SiteGuard has undergone tests to 600 joules in accordance with GS-Bau-18. As a result there is a safety factor of 2 which takes care of the tolerances of the materials used.
  • Several different installation options - Its low weight and its fixing system enable it to be easily installed.
  • Fits all Colt smoke ventilators
  • Aerodynamic performance is unaffected - It has been proven that fitting a SiteGuard into a ventilator throat has no negative impact on the aerodynamic performance of the natural ventilator installed above it, thus there is no loss of EN 12101-2 certification.
  • We are at your service - We provide a pre-order design service. We also offer complete project management, installation, wiring and commissioning, which means that we take complete responsibility to ensure that the product is in full working order within one package of works.

    Please contact us for more information relating to the application, specification, installation or servicing of this product.
VO air inlet ventilator

The VO controllable air inlet ventilation allows natural ventilation in all weather conditions and is specially designed for heat intensive industries. It can be controlled either by hand, electrically or pneumatically.

  • Wide range of applications - There are hand, electric or pneumatic controls and a wide range of accessories (guards, attenuators) and finishes.
  • Easy to install – VO is delivered fully assembled to site. It has a wide range of base profiles to suit all curtain wall, sheeting or brickwork glazing applications.
  • Durable – VO is manufactured from tough, corrosion resistant aluminium alloy, grade 3005 in accordance with EN573-3, with stainless steel fixings. It requires very little maintenance. It can withstand the most extreme weather conditions, from the Arctic to deserts.
  • Quality of manufacture – VO is manufactured under strict quality standards. Each unit is given a functional test before despatch.
  • Design service- Colt provides a pre-order design service. Please contact Colt for more information relating to the application, specification, installation or servicing of VO systems.
WCO dual purpose ventilator

WCO can provide extract ventilation as well as allow the entry of natural daylight for most kinds of industrial and commercial buildings. Its top section provides maximum ventilation and this can also be used for emergency smoke extract, although it is not certified as a smoke ventilator. Two controllable side dampers provide day to day ventilation when it is raining.

  • Wide range of applications - WCO can provide both day to day and smoke control ventilation, although it is not certified as a smoke ventilator.
  • Polycarbonate versions allow the entry of natural daylight. There are pneumatic, electric or hand controls and a wide range of louvre types, accessories and finishes.
  • High performance - WCO is aerodynamically efficient and has a high resistance to weather.
  • Easy to install - WCO is delivered fully assembled to site and may be installed at any angle from the horizontal to 45º. It has a wide range of base profiles to suit all sheeting, curb or glazing applications.
  • Durable - WCO is manufactured from tough, corrosion resistant aluminium alloy, grade 3005 in accordance with EN573-3, with stainless steel fixings. Louvres pivot on double nylon UV- resistant bearings. It requires very little maintenance.
  • Quality of manufacture - WCO is manufactured under the ISO 9000 quality standard. Each unit is given a functional test before despatch.
  • Design service- Colt provides a pre-order design service. Please contact Colt for more information relating to the application, specification, installation or servicing of WCO systems.
Weatherlite ventilated upstand

A Weatherlite ventilated upstand is fitted under a roof-mounted natural ventilator to provide weathered extract ventilation through two controllable side dampers irrespective of the weather.

  • High performance - Weatherlite is aerodynamically efficient and has a high resistance to weather.
  • Insulated panels option – Weatherlite (including its dampers) can be fitted with insulated panels to reduce heat losses.
  • Other options - Where only weathered ventilation is required, Weatherlite is also available without controls with a sheet metal top section. In this instance no rooftop ventilator is supplied. Bird guards and fly screens are also available.
  • Easy to install - Weatherlite is delivered fully assembled to site and may be installed at any angle from the horizontal to 45⁰. It has a wide range of base profiles to suit all sheeting, curb or glazing applications.
  • Durable - Weatherlite is manufactured from tough, corrosion resistant aluminium alloy, grade 3005 in accordance with EN 573-3, with stainless steel fixings. Louvres pivot on double nylon UV- resistant bearings. It requires very little maintenance.
  • Quality of manufacture - Weatherlite is manufactured under the ISO 9000 quality standard. Each unit is given a functional test before despatch.
  • We are at your service - We provide a pre-order design service. We also offer complete project management, installation, wiring and commissioning, which means that we take complete responsibility to ensure that the product is in full working order within one package of works.

    Please contact us for more information relating to the application, specification, installation or servicing of this product.