"vent"

The Stove and Fire Vent is the ideal interior vent to compliment a log burner or stove. The cast iron body is available in a polished pewter effect, which has been hand finished by us in our workshop or can be purchased bare metal for contractors or property owners to finish on site. The pewter finish stove vent will enhance any interiors. When the 100mm spigot is connected to an air source it provides 3000mm2 of free area for combustion air for a room fitted with a log burner or stove up to 10KW. Double up for larger appliances.

Designed by The Cast Iron Air Brick Company, this stunning grille was transformed from a concept to "a work of art" by North Devon based, pattern maker, Peter Hoole in 2010 and is now cast in West Midlands. With over 2000 sold, its fast becoming "the" conservation vent for listed and period properties and is now available with a 5" diameter(125mm) spigot as well as the original 4" diameter (100mm). Supplied in traditional black or primed for contractors to colour co-ordinate to owners requirements on site.

Take one look at our website and customers would be forgiven for thinking our grilles are only available painted in one colour - black. They can of course be supplied bare metal to go rusty in many cases as another option but black is our standard colour. That said we supply vents and air bricks painted in a huge range of RAL colours. These cant be ordered direct from the website and there is an additional cost but they can be turned around in a week or so. Please email for more details

Originally used during Victorian and Edwardian period as sewer vents or "stench flaps", these cast iron vents with 100mm round spigots are making a bit of a come back. We've replaced the flaps (that used to allow air in but not out) with mesh so air flows freely in both directions and they've become quite a hit with specifiers ventilating basements and cellars and new builds. As well as sending a shipment to Abu Dhabi we've also had orders from closer to home - Travis Perkins, Midas, Bryen & Langley and 800 Group

Here is an email we received after a client installed the conservation cowled cast iron air vents to a London property in September 2022)...We recently did a project on an old coach house in a listed building. They wanted a/c but we couldn’t route water for the h2o unit and couldn’t have two big white plastic vents on the outside of the building.The solution was to combine your products, a pair of CON6 cast iron conservation vents. The clients are ecstatic. I thought I’d share as I’m sure a lot more people in old houses will be looking for a/c going forward.Sally Estad, Elstad Interiors, Chicago USA ( working on a property in Wimbledon, UK)

Almost ten years since introducing the CON4 100mm conservation we are now adding to our collection of conservation vents with the CON6 which is our biggest yet. With a massive 150mm diameter spigot and a free area that is 50% larger than the next size down, it's sure to be a hit with many property restorers looking to add plenty of ventilation with a stunning looking vent that will last a lifetime.

Ninety UDF-50 REM Bilco Natural Smoke and Heat Ventilators (NSHEVs) were installed in a large scale accommodation development at the University of Hertfordshire. The development at the College Lane Campus comprises a mixture of individual bedrooms, twin rooms and studios. All of Bilco’s NSHEV products are manufactured to the highest possible standards, are CE Marked and meet Construction Products Regulation 305/2011. At 1500mm x 1620mm Bilco’s double leaf UDF-50 REM Smoke Vents offer a 1.5m2 clear vent area – making them ideal for dwellings of multiple occupancy such as halls of residence.

Project: London Architectural Glazed approached Surespan to design and manufacture bespoke roof access and AOV Hatch. The project had a requirement for a huge 4700 x 1300 Smoke vent with access however due to EN12101-2 testing, Surespan only has CE Certification up to 1800 x 3000mm. Surespan designed a solution which involved combining a large 3628 x 1300 electric roof hatch with a separate 1300 x 1218mm SRHE/AOV unit combined into one frame.

Bilco UK’s special zinc-clad Roof Access Hatches and Smoke Vents chosen for the Zaha Hadid designed Glasgow Transport Museum, Scotland. The roof specification included Smoke Vents and Roof Access to blend with the roof finish. Bilco supplied modified units with zinc cladding to achieve the desired look. To enable safe roof maintenance, a modified E-50T Hatch was supplied and installed to the 46 degree sloping roof enabling maintenance staff to gain easy, safe access to roof equipment

Three MEDITE MDF products MEDITE TRICOYA EXTREME, MEDITE VENT and MEDITE MR are being specified for a new line of garden buildings.

MEDITE VENT and SMARTPLY PROPASSIV proved to be a winning combination for the first oak frame Passivhaus to be built in the heart of Wiltshire, South West England.Built by award-winning construction company Erigo Developments, Seldom Seen, a private detached residence, was at the time of completion the first house in Wiltshire to meet the Passivhaus standard. It still ranks as only the eighth certified Passivhaus in the South West of England.Designed around a traditional oak frame and finished in oak cladding, the house was strategically sympathetic to its rural Area of Outstanding Natural Beauty (AONB) setting.The combination of MEDITE VENT and SMARTPLY PROPASSIV helped to achieve its Passivhaus status.Rebecca Thursby, Director of Erigo Developments commented: “At the time, there was nothing else on the market that fulfilled its role in this location. We used an oak frame to create the external envelope and then choose both MEDITE VENT and SMARTPLY PROPASSIV to achieve the level of airtightness required to meet the Passivhaus standard. We managed to get the air tightness down to 0.38 ACH @ 50 Pascals, which is very good.”To reach Passivhaus standard, a building must achieve an airtightness level of 0.6ACH (Air Change per Hour) at 50 Pascals or less. In other words, the volume of uncontrolled air leakages in 1 hour must be less than 0.6 times the overall building volume when the difference in air pressure between the indoors and outdoors is 50 Pascals. Named after French mathematician and physicist Blaise Pascal, ‘Pascals’ is the unit by which pressure is measured. In this case, it indicates the air pressure difference between inside the building and outside the building for the airtightness test. Reaching an airtightness level of 0.38 can be considered a remarkable achievement.Perfect for use in low energy buildings, MEDITE VENT is a high performance, breathable sheathing panel, suitable for use in timber frame structures. It boasts high racking strength in excess of Category 1 requirements, and high vapour permeability alongside weather resistance. Its extremely low vapour diffusion factor helps to prevent condensation and because it is manufactured with no added formaldehyde, it contributes to both a healthier working environment for installing contractors and a healthier living environment for building occupants.This intelligently formulated panel is teamed with SMARTPLY PROPASSIV, an airtight structural OSB/3 panel with integrated vapour control properties, used as structural sheathing in timber frame buildings. These features eliminate the need for additional Air and Vapour Control layer (AVCL) membranes. Its coating also provides a durable, smooth surface perfect for the use of airtight tape at the panel joints. SMARTPLY’s in-house speciality surfacing technology provides this integrated vapour barrier, which delivers high and constant vapour resistance across the whole surface.For this project, the timber frame was in-filled with Icyenene sprayfoam insulation, with SMARTPLY PROPASSIV lining the interior, alongside plasterboard facing the room. MEDITE VENT was installed on the exterior of the spray foam, which was then topped with Tyvek wrap and finished with the timber cladding.MEDITE SMARTPLY’s entire product range, including MEDITE VENT and SMARTPLY PROPASSIV, is manufactured with FSC® certified Irish timber, from their own sustainably managed forests, demonstrating a clear supply chain and manufacturing process.Being conscious of how this industry impacts the environment is also something that Erigo Developments takes very seriously. Erigo is an award-winning construction company that puts an exceptionally strong focus on being environmentally responsible. The company demonstrates this by selecting carbon responsible materials and always aiming to achieve zero non-hazardous waste to landfill in all of their projects.“We've made a commitment that we're only going to build to a Passivhaus standard going forward, and to build with carbon responsible materials,” continued Rebecca. “I think everyone needs to do their bit to combat climate change.”“I think that building regulations need to go further in terms of power requirements and what's needed from houses now to achieve energy efficiency. That way, everyone knows what they can do in order to reduce their energy demands. There also needs to be more incentives in place to make people choose carbon responsible materials.”The use of MEDITE VENT and SMARTPLY PROPASSIV provides a winning formula for sustainable building.

There are a lot of different official documents about the rules and regulation around fire safety and smoke ventilation, which, in turn, influence the way you should choose and install your AOVs. Building regulations are minimum standards that apply to almost all new residential and commercial buildings, and also alterations to the existing ones. If you are planning to use an Automatic Opening Smoke Vent (AOV) System in your project, you will have to comply with the regulations mentioned.

Product:140° degree opening glazed smoke ventilation up to 3m x 1.2m. Here installed and commissioned in a newly upgraded prestigious London address. CE Marked and Certified to EN 12101-2. The AOV features concealed actuators along with a double-glazed top. 1.5 W/m²K Double Glazed Lid Custom made to any size up to 3m x 1.9m

AOV or Automatic Opening Vent systems control the airflow of smoke in a fire. According to EN12102-2 it is a statutory requirement to have an AOV unit on a new construction. Since 2006, Europe has required that the AOVs meet with the standards set forth in DIN EN12102-2. As a result, many companies have made their versions of AOVs. Majority of these options only go as far as barely meeting the before stated regulations. However, the Coxdome Firejet SHEV exceeds the expectations and requirements of a standard AOV.

The data sets for SIEGENIA's ventilation units can now be found in the CAD/CAE software Trimble Nova. This enables architects and planners to carry out easy and reliable planning with the facade and wall-mounted ventilator data as well as components contained in the software.

Newton House is a brand new Housing 21 Extra Care Living development in Penrith. It promotes independent living for people over the age of 55, with access to on-site care. The development offers 54 one and two bedroom apartments.Newton House provides fully accessible facilities for residents and visitors. These include a restaurant, hair salon, residents’ lounge, activity room and communal gardens.For the natural smoke ventilation system at Newton House, Dyer provided roof vents, dampers and louvres, and supplied and installed the controls in order to ventilate the communal areas.Three staircases are ventilated by certified smoke vent rooflights, each fitted with a KA 54 chain drive. Each of the three internal corridors are ventilated via smoke shafts with smoke dampers and grilles (with concealed drives) at each corridor level and a rooflight at the head of the shaft.Dual colour aluminium double glazed louvres each fitted with a single LDF louvre drive, ventilate the six corridors.All staircase roof vents and louvres are CE marked and tested to EN 12101-2. The shaft dampers are CE marked and tested to EN 12101-8.Dyer supplied and installed a multizone smoke ventilation control panel with 72 hour battery back up, with one breakglass reset switch for each zone. The control panel will receive signals from the fire alarm to individually trigger each zone. When a corridor zone is triggered, the vent at the head of the adjacent staircase will open. If a smoke shaft inlet vent is triggered, all remaining vents will be locked in the closed position to prevent spread of heat and smoke between floors.The end of corridor louvres can be used for natural day-to-day ventilation when required. Each has a switch located nearby, when pressed, will open the louvres to 25%, allowing fresh air to enter the corridors.

Overcoming an unforeseen and seemingly insurmountable problem. Using actuators to operate large steel framed ETFE pillow vents.

Before there was an open, 4" (100mm) diameter pipe that drained water from the back of this Devon farm house into the yard. Apart from an open pipe, which never looks good on a listed building, when it rained heavily there was water gushing out across the road causing havoc to any cars parked nearby. With the installation of the cast iron cowled conservation vent now the water is deflected downwards and the opening is no longer open to the elements and in eye line. With a choice of 100mm or 125mm spigots this cowled vent has many uses

Nuplace are a quality lettings company, owned by Telford & Wrekin Council. It secured planning permission to build 39 new homes on a site in Telford. The window specification was for a White chamfered profile that could achieve an overall U value of 1.4 W/m2K. SBD accreditation was a requirement AND PAS24. The site’s location near a busy road meant acoustic glazing was required on some elevations. Trickle vents were required on some windows, including those with acoustic glazing requirements, which meant non-standard acoustic trickle vents were required.

Product:Surespan 140° thermally broken aluminium smoke ventilator and roof hatch designed to EN12101-2. ]The AOV also offers push-button comfort ventilation in one package! This one-stop solution for smoke vent requirements to meet building control can achieve 1m² airflow and is available in standard stocked sizes or made to any size in between 900 x 900 and 1260 x 1260. Wind deflectors to improve airflow. RE 1,000 Ventilation 10,000 Vent Offset mechanism for Roof Access Snow Load SL500 Wind Load WL1500 Temperature Class T (-15°) Fire Resistance B300

Thorngrove House in Manchester required a new natural smoke ventilation system.Dyer replaced the existing windows with certified NSHEV louvres, inserted a head of stair vent, and supplied and installed the control system.

Project: Wadebridge School, Cornwall Client: Wadebridge School Scope of the project: Supply rooflights for refurbishment of school roof Products: Pyramid and Trapezoidal em.dome Rooflights with PVC300mm High Eco em.curb & Rotating Trickle Vents

Design & Build construction of a purpose build student accommodation development to provide 1,025 bedrooms and once completed it will provide a dramatic new addition to the Birmingham skyline.The buildings comprise of two bold, angular towers with sharply defined ‘razor’ edges and a smooth, highly detailed, gloss black finish, rising 13 and 24 storeys respectively. The towers are anchored by a middle section rising to 10 storeys and finished with a traditional, matt brick with defined window reveals and texture.The building is designed to achieve a BREEAM Excellent rating and the student beds arranged principally in cluster units.Noise absorbing window ventsDucoMax SR is a self-regulating, acoustic vent (sound attenuating ventilator), specifically engineered for situations exposed to high levels of noise disturbance. The various types are attractively designed and offer excellent acoustic and airflow performance. Suited to high-rise applications, the SkyMax variant was also placed in this project. The SkyMax SR is an upgraded version of the DucoMax SR making it applicable to heights up to 70 meter. The acoustic vents ensure that the students have a carefree night's sleep in a bustling city. 

A new prestige office development in Sandton, Johannesburg is using a combined smoke and natural ventilation system, involving automatic window vents in the building’s elliptical glazed central tower, which is actuated and controlled by an integrated solution from SE Controls Africa.

A show home at the 2016 London Ideal Home Exhibition featured 22 FAKRO FTP non-vented roof windows. The Arc, by The Green Unit, demonstrated modular, eco construction which can be used for residential, commercial, education, leisure and a host of other purposes.

Local Blackfriars is a gated community in Salford, providing 380 apartments. A unique aspect of the residential scheme is the Grade II listed Black Friar pub merged into the development.Dyer were asked to supply and install mechanical smoke ventilation systems for the apartment blocks and the underground car parks. Dyer worked closely with Fire Design Solutions and Domis Construction over the course of the project to provide a successful outcome.When a floor goes into fire, the dampers in both shafts on the affected floor open. The chain drive on the AOV window on the affected floor opens to provide fresh inlet air. The vent at the head of the stairwell will also open. Both sets of fans work to extract the smoke and poisonous gases.On activation of a thermostat on a single floor, both the dampers on the affected floor will open. One set of fans will extract on trickle mode and the other shaft will provide fresh inlet air for the system. The vent at the head of the stair will also partly open.If the rain sensor is activated this will override and close the roof vent.If more than one thermostat operates, the dampers on the affected floors will open and be balanced to provide an equal air flow on each floor.Smoke detection in any zone will override the natural ventilation system and smoke extract will take priority.Dyer provided an eco-park® mechanical ventilation system. Advanced components and control systems allows for efficient energy usage.

Glasgow’s latest redevelopment project, located on Langside Road, is built upon the former site of the city’s Victoria Infirmary and consists of a large housing development that includes 413 flats, offices and retail space. The 3.75 hectare site, which is situated next to Queen’s Park on the south side of the city, forms an important part of the Battlefield area’s character, with the buildings’ exterior reflecting and complementing the surrounding heritage by using the city's traditional blonde coloured sandstone.  As part of the construction process, Bilco UK was commissioned to supply six ESW-50REM Smoke Vents, in addition to seven E-50TB Roof Access Hatches, to provide the highest standards of safety and efficiency, whilst being sympathetic to the project’s overall design.  Installed onto the roof areas of four blocks of flats by Scottish contractors, Procladd Small Works Ltd, Bilco UK’s ESW-50REM Smoke Vents were specified to provide essential ventilation in the event of a building fire. Featuring a linear actuator operating mechanism that opens the cover to 140 degrees within 60 seconds, the smoke vents ensure compliance with Building Regulations Approved Document B, BS9999 and EN12101-2.  The built-in wind deflector also provides protection against smoke being blown back into the vent in the event of a fire., whilst the newly-designed closed-cell EPDM sponge gasket helps meet Building Regulation air leakage targets by providing a better seal of the cover to the curb. With the addition of a fixed vertical ladder, the smoke vents can also be used by maintenance engineers for roof access.  Billy Baillie, Managing Director at Procladd Small Works Ltd, said: “We have a longstanding relationship of over 20 years with Bilco UK, and will continue to do so over the forthcoming years, due to their impressive product quality and outstanding service. Bilco UK’s Roof Access Hatches and Smoke Vents were incredibly easy to install, and knowing they’re engineered to meet the highest industry standards, it provided both ourselves and the client with the confidence that the installation would set the standard for performance and longevity.” Constructed with corrosion-resistant materials, Bilco UK’s E-50TB Roof Access Hatches were also installed to provide engineers with safe, regular and convenient access to the roof to conduct essential maintenance. Engineered with compression spring operators to provide easy one-hand operation, the roof access hatch meets the requirements of Manual Handling Regulations, whilst the automatic hold-open arm locks the cover in the open position to ensure safe egress. The overlapping cover design, fully welded corners and insulated cover also ensure weathertightness and energy efficiency to deliver the highest standards of resilience. Mark Baird, Sales Operations Manager at Bilco UK, said: “Drawing on our longstanding relationship with Procladd Small Works Ltd, it was fantastic to work together on this project, which has been designed to positively impact the city’s culture. The products installed were manufactured with fire safety and efficiency in mind, delivering assurance of the durability and suitability of the installation for years to come.”For further information on Bilco UK’s complete range of roof access solutions, visit www.bilcouk.co.uk or call 01284 701696. 

D+H UK provided multi-zone natural smoke ventilation systems featuring NSHEV Dome Vents within each block at Crossings.The former Georgian Mill site in the heart of Macclesfield has been transformed by Rowlinson Constructions into two modern apartment blocks for Peaks & Plains Housing Trust.

Burlington Square is a new, high quality apartment scheme in Manchester. The building comprises of 273 apartments over nine storeys, with ground floor communal facilities, commercial units and communal rooftop areas.Dyer worked with Domis Construction to supply and install natural and mechanical smoke ventilation systems using a combination of AOVs (automatically opening vent) and smoke extract fans.

The £3.6 million refurbishment of a library at one of Kent’s most prestigious independent boys’ schools features Kawneer’s AA®100 mullion-drained curtain walling with bespoke fin caps and AA®541 concealed vents along with AA®720 entrance doors on a stunning new 13.5m high circulation tower topped by an AA®100 rooflight.

Kawneer’s AA®100 SSG (Structurally Silicone Glazed) curtain walling, with AA®720 doors and open-in side-hung vents, form the main structure to the two main facades of the £20 million John Bradfield Centre hub building at the 151-acre Cambridge Science Park, Europe’s first science park, owned by Trinity College Cambridge.

1930s-built Tatton Cinema has been transformed into modern retail units and apartments, with a new four storey building located at the rear.D+H UK provided natural and mechanical smoke ventilation in each block respectively.Our systems include single and double-length NSHEV Dome Vents, Smoke Shaft Dampers and an NSHEV Roof Louvre containing a set of fans.

Dyer Environmental Controls Ltd supplied and installed a mechanical smoke ventilation solution in a Watkin Jones Homes development. The Wharf, set alongside Droylsden Marina offers a collection of modern 1, 2 and 3 bedroom apartments.The apartment block has 6 levels connected by a central staircase.EN certified dampers are fitted to each floor along with local smoke detection.The fans are placed within the smoke shaft with an opensky louvre situated above them, providing weather protection. A control panel operates the duty and standby fans.Two AOV smoke dome vents are in place to provide smoke clearance, one located on level 6 and the other on the central staircase.If smoke is detected in the building the system will open the corridor AOV, smoke shaft damper, head of stair vent and opensky louvre. The duty fan will run to extract any smoke located in the corridor. In the event of a power failure the standby fan will engage.Dyer’s fully automatic system allows safe escape for residents and clear access for firefighters.

The 2022 Stirling Prize was won by Niall McLaughlin Architects for the Magdalene College Library in Cambridge. The exterior of the building combines glazing, timber, brick and an elegant QUARTZ-ZINC PLUS standing seam roof using the BBA certified Structural roof, which is a warm roof (non vented) system. The roof was installed by a VMZINC@WORK partner, All Metal Roofing thus making a 50 year warranty possible.

The building comprises of 3 sections, varying in height with retail space on the ground floor and student accommodation from the 1st to 10th floor being operated by Unite Students, which runs student accommodation sites across the UK. The project utilises Aluprof MB-SR50N capped curtain walling and inward opening vents with an external mesh to prevent objects from being release at high level from inside the building.

Kingspan Light + Air worked on project jewel at Changi International Airport in Singapore. One of the most innovative project features is the distinctive dome-shaped facade, made entirely of glass and steel. Our team worked with the architects and project team to specify and install over 100 Lumera ventilation windows. The Lumera ventilation windows also operate as an integral element of a wider Smoke and Heat Exhaust Vent (SHEV) system.