Automatic opening vents

Smoke Ventilation Systems


Smoke Ventilation Systems by AK Fire provide life Safety smoke ventilation systems that assist occupant’s means of escape and provide clear access for firefighting services.


Based just outside of London, in Watford,Ak Fire are leading industry specialists in the supply, installation and maintenance of cutting edge, smoke venting systems, with a uniquely effective approach. From Natural Smoke Ventilation Systems to Mechanical smoke ventilation systems AK Fire has system and approach to suit every requirement

Natural Smoke Ventilation Systems


AK Fire provides a complete solution package for natural smoke ventilation systems. Our integrated service delivers cost-effective smoke venting solutions to create safe environments that meet all necessary approvals.


Our natural smoke ventilation systems remain pleasing to the architect’s aesthetic vision, while offering maximum floor space efficiency and cost savings. From initial design, through installation, to commissioning and ongoing servicing, it is a total solution that offers hassle-free handover, testing and maintenance – as a standalone system or as part of an integrated fire safety approach. AK Fire has solution to suit you


In the event of a fire, natural venting systems open air ways, using natural air flow dynamics to remove smoke, which is arguably the biggest threat to life. This can be attained by opening windows or vents, an automatic opening vent (AOV) or, where there is no external wall, a vertical smoke shaft.


AK Fire natural venting systems provide a reliable and cost-effective method of meeting the requirements of Approved Document B. In the event of a fire, smoke detectors will activate the natural smoke venting system on that floor. This creates a natural air flow to purge smoke from the building and exhaust it into the atmosphere, offering a safe means of escape for occupants, with greater visibility and access for fire fighters.


We understand the correct fire rating required of every component to maintain the necessary compartmentation within the building and that knowledge is underpinned by our ongoing research and development commitment.

Mechanical Smoke Ventilation Systems


Mechanical Smoke Ventilation systems can aid the safe escape of occupants’ and allow adequate access for firefighters. Our Mechanical Smoke Ventilation Systems are an alternative method to Natural Smoke Venting. In the event of a fire, mechanical smoke vent systems offer the ultimate in smoke control as they remove smoke from the building, thus aiding the occupants’ means of escape and providing suitable access for firefighting services.


This type of smoke extraction system comprises of a mechanical extract shaft that serves the common corridor and/ or lobby. When smoke it detected within a protected lobby, only the fire damper to the smoke shaft on the fire floor will open (all other dampers will remain locked shut). In turn, the vent at the head of the staircase will open allowing the smoke to be removed and make up air for the smoke extraction system. The fan at the top of the mechanical smoke shaft extracts the smoke and prevents migration of smoke into the adjacent compartments.


On detection of smoke within a lobby, only the fire damper to the shaft on the fire floor will open (all other dampers are locked shut) and the vent at the head of the staircase opens. The fan at the top of the shaft extracts the smoke and prevents migration of smoke into the adjacent compartments.

Innovative Mechanical Smoke Ventilation Systems


AK Fire provide a complete smoke extraction system for clients including design, supply, installation, commissioning and maintenance of mechanical smoke vent systems. We work with clients across a wide spectrum of requirements from component parts of individual systems right through to value engineered innovative design and install solutions for large-scale mixed-use building projects.


When we design our systems, you can be sure that it exceeds the standard of code-based smoke venting systems and provides a flexible, cost-effective solution for you and your clients.


Thinking ‘outside of the box’ when devising a smoke extraction system for our clients comes naturally to us.

AK Fire smoke venting systems have proven their effectiveness within AOV industry

Corridor Environmental System


The requirement for improved energy efficiency has resulted in the increased use of centralised heating systems, boilers and hot water pipework in multi storey residential schemes. Whilst this provides benefits for effective heat and water distribution it can also result in significant heat build-up affecting residents and operatives working in the building.


Fire Design Solutions has designed an efficient and cost-effective solution of integrating our Corridor Environmental System with our advanced mechanical smoke ventilation system for day to day environmental ventilation – venting hot air from the common corridors and stairs, and reducing the temperature to an acceptable level.


Corridor environmental ventilation is achieved through the mechanical extraction of heat from the corridor into the smoke shafts using motorised dampers that open whilst the system is operational. A thermostat activates operation once a pre-set temperature is achieved. In the event of a fire, the system reverts to fire safety mode to remove smoke from the building.

Proven Solution


At AK Fire we design the Corridor Environmental System to maximise heat removal, providing occupants and maintenance operatives with comfortable internal temperatures.


We can help you achieve substantial cost savings wherever we can utilise the smoke shaft during the initial construction stage, thus allowing us to complete installation in just one exercise. Our system has a proven track record of eliminating heat gain from the common heating/hot water pipework and allows the common stairway to be cooled. It also factors in the scheme’s acoustic requirements, with primary and secondary attenuation included in each system to minimise noise breakout.


Not only can our specialist design team integrate our Corridor Environmental System with our mechanical smoke ventilation system for maximum cost and area efficiency, but we can also retrofit the system easily to existing smoke ventilation systems, avoiding costly additional installations.

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