UK Importers for Mingardi, Topp and Ultraflex Actuators & Vents
UK Importers for Brakel, Mingardi, Topp and Ultraflex (UCS)
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01202 744 958

Applications for Natural Ventilation


atria & structural glazing

We can provide rooflights and roof louvres, window vents and window louvre vents for atria ventilation, plus sensors and controls for environmental management. A variety of glazing options are available (standard glazing, double thermal glazing, fire rated glass, polycarbonate), an any BS or RAL frame colour.

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residential MDU

Automated facade vents (windows and louvres) and roof vents and rooflights allow building air cycling to be managed from natural ventilation control systems. These can take inputs from manual switches, programmable timers and a range of sensors including thermostats (temperature), anemometers (wind speed), rain sensors and hygrometers (humidity).

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agriculture & horticulture

Environmental regulation for agriculture and horticulture greenhouses is critical. Temperature control can be automated with window vents and rooflights via our natural control systems, taking inputs from a variety of possible sensors or direct switches. We also provide spindles for manual opening/closing should you need it.

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offices & commercial

It has been estimated that air conditioning can account for up to 30% of total energy consumption in an office building. Consequently, natural ventilation presents an ongoing saving and an environmental benefit once installed. It delivers fresh air which is cycled through the building, rather than recycling the same air - improving the working environment!

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retail & shopping

Environmental control of shopping centres and retail stores using natural ventilation (both roof and facade mounted systems) as the primary source for cooling and fresh air circulation can provide considerable savings over air conditioning - in installation costs, running costs and environmental impact.

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domestic / conservatories

Adding automated natural ventilation to glass extensions (structural glass rooms linking gardens and interior living space) and more traditional conservatories allows you to set environmental conditions and then let our Ventec control system manage this for you - programmed timers, temperature, rainfall, humidity and wind speed adjusting the vents accordingly.

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hospitals & health

Natural air flow in hospitals and health facilities not only keeps running costs down, but because it is an open system with fresh cooling air, bacteria have less chance to breed and linger. Recent research confirms what Florence Nightingale and any 1950's ward Sister knew - fresh air is good for patients and kills harmful bacteria unlike in artificially ventilated wards! Less anti-bacterial spray and more fresh air!

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industrial & warehouses

Airflow in warehouses and industrial buildings can significantly improve environmental conditions, increase worker comfort, prolong the storage life of goods & stock, and by eschewing mechanical cooling / air conditioning save a huge amount of money - natural ventilation running costs being a fraction of powered and artificial systems.

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hotels & travel

Facade and roof natural ventilation provide hotels with a low cost and environmentally friendly alternative to what has seemed to be the ubiquitous use of air-conditioning. The tide is turning though - of common hotel guest complaints, two of the top-ten are 1) noisy air-conditioning and 2) hot rooms where you cannot open a window - so hoteliers now see the benefits of natural ventilation.

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education & schools

Classrooms, lecture halls, auditoriums, refectories and dormitories all benefit from good ventilation. Natural ventilation system allow these environments to receive fresh air (good for studying and concentration) and also significantly reduce running costs for campus or school upkeep - meaning more of the budget can be spent on pupils and students!

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care & sheltered homes

Like some hospitals, care homes can sometimes feel soporific, hot and stuffy. This is not beneficial to residence and can be a breeding ground for germs and bacteria. Natural ventilation will help regulate temperature and more importantly provide an ample supply of fresh air. It will also provide considerable cost savings over mechanical or air conditioned systems.

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public buildings

In public and historic building where automation of windows for natural ventilation is required, discrete installation are often a prerequisite. This allows the building to benefit from automated environment control with fresh air flow, whilst retaining the aesthetic sensibilities and integrity of the building's design and architecture.

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Applications - natural ventilation

If you have ever sat exams in a stuffy school gymnasium, toiled in overly warm offices where the air conditioning was never turned on because it was too expensive to run, spent a sleepless night in a hotel room where the air-con was so noisy your thought you were on the tarmac at Heathrow or visited someone in hospital and encountered stale soporific air that made you feel slightly ill, then you will understand why natural ventilation is becoming the preferred choice for ventilation solutions.

Natural ventilation is cheaper, healthier and kinder on the environment than any forced air mechanical or air conditioned system

New build & existing buildings

Relying on airflow physics and architectural / engineering know-how to achieve the desire airflow within a building is becoming much more commonplace now as the commercial and environmental benefits become clear to more and more developers and clients. The range of vents types, actuators and controls means there is a large degree of flexibility is how you deploy a natural ventilation system.


When natural ventilation systems are designed from the ground up, they benefit by getting us involved in the early stages of a project to advise and present options. This helps ensure the ventilation system's design is optimal, with ventilation implanted within the DNA of the architecture rather than as an afterthought.

We can also advise how to introduce an automated natural ventilation system into an existing building, identifying remedial work that might be required prior to the system install and then supplying, installing and commissioning the system for you.

Architectural options for airflow

There are five main approaches that can be deployed to create natural airflow in your building:-

Cross ventilation - vents on either side of the building allow airflow to pass through the building - the prevailing breeze brings inflow (cooler air) into the building, whilst hotter air escapes on the far side where air pressure is lower and the buoyancy of the hot air is naturally lifting away the air through exhaust vents near the ceiling.

Stack ventilation - a shaft captures warmer air from ceiling / higher vent positions, and the collective volume of warmer air in the shaft creates uplift (the warm air being more buoyant) and vents from the shaft. Lateral crosswinds over the stack also generate a venturi effect creating lower pressure suction (draw)


like on a chimney or flue. Inflow is generally provided from facade window vents or louvres.

Passive cooling - very simply these systems vent the building at night, relying on cooler external temperatures to purge hot air from the building (i.e. entropy seeking thermodynamic equilibrium).

Single sided ventilation - in simple terms this would be an open window! Cool air enters in the lower window aperture, warm air escapes through the upper portion of the window aperture. The larger the aerodynamic free area the more efficient this type of ventilation can be. It has limited use beyond certain depths of room, as airflow circulation may not occur there.

Single sided double opening - this improves on the single sided ventilation in that lower and upper vents are used with more airflow circulation possible due to dedicated inflow and outflow vents within the system, making the system more efficient than a single vent aperture.

For free friendly advice on natural ventilation give us a call now:- 01202 744 958