Roof ventilation turrets use external wind and temperature to improve indoor air quality (IAQ) as part of a sustainable ventilation system. Unlike mechanical ventilation systems, natural ventilation uses a minimal amount of energy and is subsequently cost-efficient. Read More

Natural ventilation systems are becoming increasingly popular in schools and offices, as the fresh air circulation helps to improve concentration and reduce absenteeism.

Often designed to be in keeping with the architectural aesthetic of the building, the roof-mounted ventilation terminals are typically constructed using aluminium, GRP or ABS. They are suitable for installation on both flat and pitched roofs.

Passive stack terminals make use of passive stack ventilation (PSV), which is the most common type of natural ventilation. PSV combines cross ventilation, buoyancy (rising, warm air), and the venturi effect (suction caused by wind passing over the ventilation terminal).

Displacement terminals utilise displacement ventilation, which is especially suitable for night cooling applications and for large spaces, such as sports halls and auditoriums. The turret typically features at least two separate chambers: one for cool incoming air, and the other for warm, outgoing air.

The ventilation terminals can feature integrated fans, for assisted ventilation, as well as integrated light pipes, to make use of natural daylight and to further reduce energy costs. 

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Roof ventilation turrets - helping you find the best solution for your project.

  • McKenzie-Martin: Maximair Turret rooftop weathering ventilation terminals
    Maximair Turret rooftop weathering ventilation terminals
    McKenzie-Martin
    Maximair Turrets are designed to act as rooftop weathering passive ventilation terminals and are particularly suitable for mounting over ducts, liftshafts or stairwells. These units perform especially well in a classroom...
  • McKenzie-Martin: Maximair ventilation turrets for Manchester hospital
    Maximair ventilation turrets for Manchester hospital
    McKenzie-Martin
    A project in Manchester has made use of Maximair A Series turrets as part of the integrated ventilation scheme. Fabricated to client specifications and installed on site by McKenzie-Martin's engineers, the turrets provide...
  • McKenzie-Martin: Bespoke ventilated rooflight turrets - London classrooms
    Bespoke ventilated rooflight turrets - London classrooms
    McKenzie-Martin
    While undertaking a programme of improvements, a school in North London identified a requirement for a bespoke system of ventilated rooflights which would react to changes in temperature and CO2 while still maintaining a...
  • Good Directions: GRP roof ventilation turrets
    GRP roof ventilation turrets
    Good Directions
    Roof turrets from Good Directions transform the appearance of any building. These attractive GRP features can be used as a clock tower or to carry a weather-vane, and can also be adapted to provide inlet and outlet...
  • Monodraught: WINDCATCHER CLASSIC (circular) natural ventilation
    WINDCATCHER CLASSIC (circular) natural ventilation
    Monodraught
    WINDCATCHER CLASSIC is an energy free natural ventilation system that combines the benefits of both top-down and passive stack ventilation. It consists of an external louvre bank protected internally by an anti-bird mesh and...
  • Monodraught: GRP SunCatcher natural ventilation with lightpipe
    GRP SunCatcher natural ventilation with lightpipe
    Monodraught
    The Monodraught SunCatcher effectively conveys natural daylight and natural ventilation from roof level into the building by combining the principles of the WindCatcher system with Monodraught's natural daylight system - the...
  • Midtherm Engineering: Windvent SV roof ventilation turret
    Windvent SV roof ventilation turret
    Midtherm Engineering
    The Windvent SV (previously Solar-Vent) active stack terminal unites the passive stack Windvent system with an integral, solar-powered fan to boost internal air velocities during hot summer temperatures, thereby improving...
  • Midtherm Engineering: X-Stream™ Light Commercial GRP ventilation units
    X-Stream™ Light Commercial GRP ventilation units
    Midtherm Engineering
    Our X-Stream range of boxed GRP natural ventilators are designed specifically for light commercial applications and offer a smaller scale alternative to our popular Windvent products. All of our X-Stream products employ the...
  • Monodraught: SOLA-BOOST® CLASSIC solar-assisted natural ventilation
    SOLA-BOOST® CLASSIC solar-assisted natural ventilation
    Monodraught
    The SOLA-BOOST is an extension of Monodraught’s Windcatcher ventillation turret. With a solar-powered integral fan, it provides ventilation on sunny days whilst maintaining zero running costs. The solar-driven internal fan...
  • Monodraught: VENTSAIR roof-mounted natural ventilation louvre system
    VENTSAIR roof-mounted natural ventilation louvre system
    Monodraught
    VENTSAIR roof-mounted ventilation terminals have a similar appearance to the standard WINDCATCHER® system but have a different internal configuration to allow for dedicated intake or exhaust requirements. These systems are...
  • Midtherm Engineering: Windvent NV/PS natural ventilation system
    Windvent NV/PS natural ventilation system
    Midtherm Engineering
    Midtherm Windvents are natural ventilation systems that are suitable for a number of buildings. They offer cost effective alternatives to air conditioning and mechanical ventilation, as well as providing improved conditions...
  • Midtherm Engineering: X-Stream SOLAR (SVX) GRP roof ventilation turret
    X-Stream SOLAR (SVX) GRP roof ventilation turret
    Midtherm Engineering
    X-Stream SOLAR is a boxed GRP natural ventilator with active stack capability. The unit incorporates a passive stack terminal with a solar-powered, integral fan to boost airflow velocity as required. X-Stream SOLAR utilises...
  • Monodraught: SOLA-BOOST X-Air natural ventilation system
    SOLA-BOOST X-Air natural ventilation system
    Monodraught
    The SOLA-BOOST X-Air is a 2nd generation natural ventilation system featuring the patented ACTIVLOUVRE® modulating aerofoil louvre technology and DC solar powered fan controlled by Monodraught’s PowerTrack™ system. It...
  • Midtherm Engineering: Windvent ventilation systems, Fosse Way school, Bath
    Windvent ventilation systems, Fosse Way school, Bath
    Midtherm Engineering
    Bath & North East Somerset council specified Midtherm's environmentally-friendly Windvent ventilation system for three classrooms situated in a new build extension at Fosse Way school in Bath. Midtherm's design team used a...
  • Monodraught: WINDCATCHER X-Air natural ventilation system
    WINDCATCHER X-Air natural ventilation system
    Monodraught
    WINDCATCHER X-Air is a second generation natural ventilation system. It features the patented ACTIVLOUVRE® modulating aerofoil louvre technology. The system comprises an external static louvre and internal active louvre,...
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Roof ventilation turrets- helping you find the best companies for your project.

  • McKenzie-Martin: Bespoke ventilated rooflight turrets - London classrooms
    McKenzie-Martin: Maximair ventilation turrets for Manchester hospital
    McKenzie-Martin: Maximair Turret rooftop weathering ventilation terminals

    McKenzie-Martin

    Roof ventilation turrets

    Designs and manufactures natural ventilation products for commercial and industrial applications. The product range includes fixed-blade and adjustable-blade louvres, as well as louvres designed to cope with environmental problems such as extreme weather conditions, wind-borne sand, undesirable light penetration or noise transmission. All products...
    Eton Hill Works, Eton Hill Road, Radcliffe, Manchester, M26 2US
    Phone: 0161 723 2234  Fax: 0161 725 9531  Visit website
  • Good Directions: GRP roof ventilation turrets

    Good Directions

    Roof ventilation turrets

    Time House, 19 Bottings Industrial Estate, Hillsons Road, Curd, Southampton, SO30 2DY
    Phone: 01489 797773  Visit website
  • Monodraught: SOLA-BOOST® CLASSIC solar-assisted natural ventilation
    Monodraught: WINDCATCHER CLASSIC (circular) natural ventilation
    Monodraught: GRP SunCatcher natural ventilation with lightpipe
    Monodraught: WINDCATCHER X-Air natural ventilation system
    Monodraught: VENTSAIR roof-mounted natural ventilation louvre system
    Monodraught: WINDCATCHER CLASSIC (square) natural ventilation

    Monodraught

    Roof ventilation turrets

    Designs and manufactures natural ventilation systems for public, commercial and institutional buildings. The systems operate by catching the prevailing wind from any direction at roof level, and carrying it throughout the building through a controlled damper arrangement. Stale air is also driven from the building using the same system by means of...
    Halifax House, Cressex Business Park, High Wycombe, HP12 3SE
    Phone: 01494 897700  Fax: 01494 532465  Visit website
  • Midtherm Engineering: Windvent NV/PS natural ventilation system
    Midtherm Engineering: Windvent VL (Ventlite) natural ventilation and lighting
    Midtherm Engineering: Windvent SV roof ventilation turret
    Midtherm Engineering: X-Stream SOLAR (SVX) GRP roof ventilation turret
    Midtherm Engineering: X-Stream™ Light Commercial GRP ventilation units
    Midtherm Engineering: Windvent ventilation systems, Fosse Way school, Bath

    Midtherm Engineering

    Roof ventilation turrets

    Our natural ventilation range harness nature's own energy supply so you don't have to rely on yours. Our solutions significantly reduce energy consumption, offer incredible cost savings (compared to traditional ventilation and lighting systems) and have been proven to reduce staff sickness and improve productivity compared to offices that have air...
    Staffordshire House, New Road, Netherton, Dudley, DY2 8TA
    Phone: 01384 455811  Fax: 01384 241252  Visit website
  • Brooke Air: Penthouse louvres

    Brooke Air

    Roof ventilation turrets

    Series PH and PHS Penthouse louvre assemblies have been designed to provide weather protection to ventilation openings in building roof platforms. They are composed of frame and blade assemblies, manufactured to suit the building opening, with 38mm, 50mm or 75mm pitch blades....
    JC House, Hurricane Way, Wickford Business Park, Wickford, SS11 8YB
    Phone: 01268 572266  Fax: 01268 560606  Visit website
  • ADM Systems

    Roof ventilation turrets

    Ling Fields, Gargrave Road, Skipton, BD23 1UX
    Phone: 01756 701051  Fax: 01756 701076  Visit website
  • Airtherm Engineering

    Roof ventilation turrets

    Airtherm Engineering manufactures a range of natural ventilation products suited to the commercial, educational, industrial and private sectors. They are commonly specified for schools, hospitals, offices and industrial buildings such as warehouses. Consisting of a roof-mounted ventilation turret and a wall mounted unit, the louvres on the units...
    8a Gainsborough Trading Estate, Rufford Road, Stourbridge, DY9 7ND
    Phone: 0844 809 2509  Fax: 01384 375218  Visit website
  • Environmental Construction Solutions

    Roof ventilation turrets

    Offers a variety of building products that are made to bespoke client specifications from GRP. Products include louvred roof ventilation units....
    Unit 21, Algernon Industrial Estate, New York Road, Newcastle-upon-Tyne, NE27 0NB
    Phone: 0345 612 3332  Fax: 0345 612 3334  Visit website
  • GDL Air Systems

    Roof ventilation turrets

    One of the leading manufacturers and suppliers of grilles, diffusers and louvres in the UK. Offers an external weather louvre, which has a 30mm blade pitch suitable for opening requirements of 150x150mm to 1200x1200mm. The louvre is available with either a standard 30mm flanged frame or in a narrow-line flangeless frame for recess mounting. A rear...
    Woolley Bridge Road, Hadfield, Glossop, SK13 1NR
    Phone: 01457 861538  Fax: 01457 866010  Visit website
  • HVC Group

    Roof ventilation turrets

    The companys weather louvres are ideal for natural ventilation and other roof-mounted ventilation systems. • Available in two blade formats. • Comprehensive range of accessories. • Extruded aluminium construction....
    Bradley Road, Wollaston, Stourbridge, DY8 1UZ
    Phone: 01384 376555  Fax: 01384 392555  Visit website
  • Passivent

    Roof ventilation turrets

    Manufactures natural and energy efficient ventilation systems for homes, sports halls, auditoria, industrial buildings and large commercial buildings. Includes roof-mounted ventilators which channel wind downwards into a building, displacing rising heated air which is directed outwards. Units are offered in a range of standard sizes, and the...
    2 Brooklands Road, Sale, M33 3SS
    Phone: 0161 905 5700  Fax: 0161 905 2085  Visit website
  • SE Controls

    Roof ventilation turrets

    Manufactures, installs and maintains natural and smoke ventilation systems for public and commercial buildings. Motorised, pneumatic and magnetic opening systems can be employed to open vents, which can be both vertical and roof-fitted. Control panels for the systems can be designed to meet specific requirements for individual buildings. Contracts...
    Lancaster House, Wellington Crescent, Fradley Park, Lichfield, WS13 8RZ
    Phone: 01543 443060  Fax: 01543 443070  Visit website
  • Smoke Control Services

    Roof ventilation turrets

    We design and install low-energy natural ventilation systems for all types of buildings including schools and commercial buildings. The company also manufactures a range of controls that can automatically operate systems to provide nocturnal cooling and temperature control. Designs are produced using the latest CFD programs to ensure they deliver...
    The Innovation Centre, Tredomen Business Park, Hengoed, CF82 7FN
    Phone: 0870 240 6460  Fax: 01443 819119  Visit website
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    Phone: {{company.telephone}}   Fax: {{company.fax}}  Visit website