Our vast fire safety and servicing experience means we can design a fully compliant AOV system, including mechanical/fan Smoke and Heat Exhaust Ventilation (SHEV ) window, louvre and damper door options as well as powered smoke control where required. An AOV system is designed to create and maintain a smoke-free layer above the floor, reducing the build-up of smoke and heat. In UK law smoke ventilation systems must be regularly inspected and be operational. Delivered including mounting base. Advanced control systems typically include temperature, humidity and CO2 sensors to maintain a comfortable interior environment for building occupants, while also serving to keep them safe in the event of a fire. This book is Paul Grimwood's follow-up to Euro Firefighter: Fire Tactics and Training Manual. windows or vents, an automatic opening vent (AOV) or, where there is no Up/down switch for manual control of ventilation. AOV control systems are used mainly to control the ventilation of smoke in a fire. These windows are to be installed by a builder and not by us. Automatic Opening Vents: The Stardome Automatic Opening Vent (AOV) is designed to reduce smoke build-up, helping to provide a safer escape route for occupants and access for fire-fighting personnel providing a complete package of smoke ventilation options 140° degree smoke vents are available from our Stardome rooflight and Thermadome rooflight ranges. Found inside – Page 408... Damper Automatic ESD Relief Vacuum Safety / relief Control Injector Valve Deluge Valve Vent Damper Multi - vane Valve Slam shut Actuator Linear Damper Fire Ball Cylinder Damper Manual Valve Sprinkler Steam PRV Deluge AOV Automatic ... For early fire detection with visual release display. AOV UK Ltd (Automatic Opening Vents UK Ltd) 74 followers. In the past, simply fitting a suitable actuator was an acceptable way to turn a window into an ‘AOV’. to day use of the car park. Automatic opening vents control the ventilation of the building. The AOV smoke vent will open once a detector or call point is triggered. As long-standing experts in AOV smoke ventilators, we are able to offer specialist advice on a wide range of smoke vents, automatic opening vents (AOV's) and SHEV units. Automatic opening vent systems are installed in buildings as an active fire protection measure. The extent to which any of these measures are necessary is dependent on the use of the building, its size and its height. SDP/AOV Polycarbonate Dome Smoke Vent. Automatic Opening Vents (AOVs) are electrically operated smoke vent rooflights which open to reduce smoke and heat build up during building fires. Automatic Opening Vents (AOV's) AOV's are a proven means of ventilating smoke from protected corridors and lobbies in a fire situation. Naturally vented where only the opening vents operate to clear the smoke normally have battery backup, as a fire alarm system would. The main purpose of an AOV system (Automatic Opening Vent) is to aid evacuation by helping to clear lobbies, stairwells and corridors in the event of a fire through 'smart' smoke control, allowing a safe route to the nearest means of escape for building occupants. AOV is simply an abbreviation for "Automatic Opening Vent". Commercial and multiple occupancy buildings are required by law to provide clear escape routes, free from smoke to allow occupants unimpeded escape, as well as provide first responders and fire crews access during an emergency. Product Description. Control the ventilation of smoke. Constructed of GRP and rigid steel. If you are unsure when your system was last inspected please Contact Us and we can schedule a visit from one of our engineers. What are Automatic Opening Vent (AOV) Systems? Mardome AOV Smoke Vent Rooflight are polycarbonate dome AOVs (Automatic Opening Ventilation), easy to install, designed for flat roofs of all modern building types. All people can escape to a place of safety without external assistance.c. AOV: Automatic Opening Vent (smoke control and ventilation systems) AOV: Air Traffic Safety Oversight Service (US Federal Aviation Administration) AOV: Agent Orange Veterans: AOV: Architects of Victory (band) AOV: Architects Of Victory (South Wales band) AOV: Alliance of Violence: AOV: Arbitrary Output Variable: AOV: Asociación de Origami de . Compliance with the following AOV building regulations is essential when using them. Automatic Opening Vents (AOVs) or smoke ventilation systems are designed to help ventilate and extract smoke from buildings during emergencies and in the event of a fire to facilitate the safe escape of occupants. When triggered by heat or smoke detectors, the windows open automatically, allowing for the natural ventilation of air and smoke. hello@marlowefireandsecurity.com, Marlowe Fire & Security We use cookies to ensure that we give you the best experience on our website. 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. MZAOV control panel. Welcome to Automatic Opening Vents UK Ltd. We are an independent company dedicated to providing excellent customer service and technical support for the design, supply and installation of Natural Ventilation and Smoke Ventilation. The aim of this book is to provide information and guidance so that a better understanding of the standards and their requirements can be gained. smoke from enclosed or underground car parks. Found inside – Page 150Violation noted : 1 & C instrument valve lineup / fill - vent sheet for nine flow transmitter instruments associated ... including Røv 5 to EPI - A2 , Rev 4 to EPI - A3 , Rev 5 to EPI - A4 , Rev 5 to EPI - A5 , Aov 8 to EPI - A6 , Rev 6 ... vents. A central control panel is linked to all the devices and is battery backed in case of mains failure. The systems use powered elements such as fans to 305/2011. What Is the AOV System? The 24V system contains both control technology and a 72 hour emergency power supply. With this book, you’ll learn how to load data, assemble and disassemble data objects, navigate R’s environment system, write your own functions, and use all of R’s programming tools. £ 141.57 Add to basket. AOV is simply an abbreviation for 'Automatic Opening Vent'. contact@marlowefireandsecurity.com, Marlowe Kitchen Fire Suppression MZAOV 3A Single Zone - Non Extendable. 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. We are proud to announce our partnership with Brakel life saving products who are . AOV Systems. Part Number: AOV/LB12 . They can also be used for comfort ventilation as well as roof access. An AOV is activated by a smoke detector or a manual pull station/alarm being triggered in the event of a fire. The Automatic Opening Vent (AOV) Systems are integrated into the fire alarm system. Choose your model by clicking the pencil icon () . If you're an installer of Automatic Opening Vents (AOVs), you need to be aware of the AOV system regulations that are in place. Please message me for full job criteria. The AOV systems open the actuators, vents or windows to create the right amount of ventilation going to the roof. When triggered by heat or smoke detectors, the windows open automatically, allowing for the natural ventilation of air and smoke. force the movement of smoke to allow it to escape through dampers, grills and AOV system, Automatic Opening Ventilation system, is mechanical that opening windows to exhaust heat or smoke. Control Panels Accessories Spares. Keep escape and access routes free from smoke, Improve visibility to facilitate firefighting operations, Delay and/or prevent ‘flashover’ and full fire development, Protect equipment, furnishings and contents, Reduce effects of heat on structural components during a fire, Reduce damage caused by thermal decomposition products and hot or harmful gases like CO2, Leading specialist in AOV & Fire Safety Systems, Extensive experience of design, supply and maintenance, Solutions developed in response to legislation, Code compliance to building regulations and British Standards. Whatever you need, we’ll take. Whether the building application is residential, commercial, healthcare or educational, a smoke ventilation system should be included as part of the overall fire strategy for the building. Fire Safety saves lives and, as a result, the industry is highly regulated to ensure that the right equipment is installed and maintained by the right people. AOV Automatic Opening Vents. This benefits residents or workers inside, as they are likely to inhale less harmful smoke during evacuation.Enhanced visibility is created when an AOV is present in a smoke situation, as the smoke and heat is allowed to rise, leaving lower levels more clear than they would be without ventilation.‘Flashover’ is also reduced; the situation in which heat is drawn back down into a building as natural air flow encourages regulation of heat throughout the building.Aside from increasing life protection, AOVs also reduce the financial impact of a fire, simply by allowing smoke to exhaust, resulting in lower overall building damage. Due to the high fire safety standards required in buildings, AOV rooflights must comply with BS EN 12101-2:2003 and require a CE mark which means they fit within . This volume provides an overview of the current state of plant genomics using a number of different approaches at a time when we celebrate the completion of the Arabidopsis genome sequence and begin the transition from structural to ... By providing your email address we can send you information about JLA's products & services and special offers which we think might be of interest to you. Their primary function is to protect common escape routes in the event of a fire, extracting smoke to enable the safe evacuation of occupants. So whether you need advice on how we can help with new solutions and servicing, booking an engineer or you want to talk to us about your account, get in touch below. Park Farm Industrial Estate Smoke can exit the building whilst fresh air can enter. New Year new starter. 10mo. Changes to building regulations were made due to the results of . VENTS. are also often integrated into the scheme. When such windows are installed, for example in renovations and/or upgrading of older buildings, compliance with the building regulations' section governing AOV systems is mandatory. Our AOV kits contain ventilators, control panels, smoke detectors, and switches designed to work out of the box without the need for specialist . Search E-mail: info@aovsmokeventilation.co.uk; 0800 0845 372 +44(0)203 0180 372; Home; Our Services; Systems. Smoke and Heat Ventilation Systems (SHEVS) are designed primarily to remove smoke and heat from a burning building, maintaining escape routes and allowing clear fire fighting access. We are looking for an AOV Engineer to join our team. For buildings containing flats, there are appropriate provisions to support a stay put evacuation strategy. Our controls can also be manually triggered via manual callpoints OR switches for comfort ventilation. Changes to building regulations were made due to the results of investigations into smoke inhalation. Historically it was accepted that a suitable actuator may be fitted to . So why do I need an AOV system? Whatever your business needs, we have a solution. £1,550.00 +vat. If you're looking for AOV maintenance in your commercial or residential premises, get in touch today. Building work and material changes of use subject to requirement B1 include both new and existing buildings. In the event of a fire, natural venting systems open airways, using Concealed automatic opening vent (AOV), fully pre-hung, with steel frame and door leaf. Grid made from galvanised sheet steel powder coated in any standard RAL Colour. Book an emergency engineer or arrange planned servicing and maintenance. Contact Us +353 1 885 3681. Constructed from steel and thermally insulated. Salford Quays Shop drawings of Smoke Ventilator - AOV - Automatic Opening Vent - and Rooflights for existing house. Surespan pneumatic automatic smoke ventilator offers exemplary functional safety and reliability fully CE marked and approved to EN 12101-2. We have experienced and reliable engineers . Found inside – Page 6987-12 and us verified by Ils soustaction of the requirements of secinon 6.02 ( 1 ) of Aov . ... 3.1 . the tow your ands on any date other than December 31 , except for an automatic 52-63 - week tex your ending with roterend to the month ... AOV windows can take up to 5 working days to reach you depending on stock levels. AOV systems are generally coupled with an alarm or detector system to work in the event of a fire. Automatic Opening Vent (AOV) Window Compliance Requirements . These AOV's can range from automated roof hatches and louvres, to end of corridor wall mounted vents and internal smoke shaft doors. We recommend and advise bi-annual inspection and maintenance to ensure your system is in a working operational condition. Smoke vents and automatic opening vents (AOVs) are designed to reduce smoke build-up in the event of a fire, helping to provide a safer escape route and improve safety.Our systems are fully compliant with BS EN 12101-2 regulations for natural smoke and heat exhaust ventilation, and they can also be used to create more natural light. Building regulations for AOV windows: Approved Document B - Fire Safety Naturally vented smoke and mechanically extracted smoke. Add to spec +44 (0)1670 354157 www.xtralite.co.uk Contact manufacturer Viewing archived product data. 9 Brunel Close Mardome AOV provides natural smoke and heat exhaust, as well as comfort ventilation. The automatic extraction vents are also an effective way to reduce heat build-up in a burning building. Automatic Opening Vent Kits. Your critical equipment is just that – critical. Provides a U-value of 1.0 or 0.83 W/m2K depending on lighting requirements. This has the benefit of reducing both […] Copyright © 2014. The Fukushima Daiichi Accident consists of a Report by the IAEA Director General and five technical volumes. Smoke control panels, smoke alarms, fireman's override switches, AOV smoke ventilation, automatic opening vents; ST70 Climate control panel, automatic closing with thermostat control and rain sensors; ideal for conservatories and orangeries, RRT Remote control window opener options, Key fob remote controls Smoke extraction (buildings), Fire spread prevention, Smoke control, Smoke, Heat, Control systems, Fire safety, Fire safety in buildings, Car parks (buildings), Ventilation, Ventilation equipment, Exhaust gases, Mathematical calculations Constructed to provide and control the operation of the automatic opening systems. From July 2013 compliance with this CE Harmonised Norm became compulsory in the UK in terms of CPR Regulation No. As soon as the alarm is activated, the AOV automatically fully opens creating a "chimney effect" , which discards the existing smoke, therefore making it possible for people to find the exits and for Firefighters to extinguish the fire accordingly. Where necessary, escape routes are sufficiently protected from the effects of fire and smoke.e. AOV Rooflights (or Automatic Opening Vent Rooflights) are designed to automatically facilitate the natural extractions of smoke during a fire in a residential or commercial building. The actuator can be moved to the side in order to accommodate an access alternative. Automatic opening vents (AOV) can be used the ventilate smoke from buildings . Most internal AOVs on the market are unsightly and detract from an interior. Found inside – Page 16973 controle tank pet ally Opel derice si to mais AOV : 1 4 AGVH 0 1 1 AGV43 : ... ( h ) For pressure - vessel type tanks , each automatic float , continuous reading tape or similar type gage not mounted directly on the tank or dome ... Fire Extinguishers & Fire Safety Equipment, Connect – Alarm Monitoring & Connected Services, Fire Alarms FAQs (Frequently Asked Questions), Marlowe Fire & Security and Marlowe Kitchen Fire Suppression migrate to ISO 45001. Whether it’s a simple question or an issue you need addressing quickly our team are here 24/7. air can enter. Protects against falling through a rooflight. At A Plus Windows, we are the first suppliers in the UK to offer a complete . Opening vents allows smoke to dissipate out of a building providing a minor benefit to increase the visibility in the interior space to facilitate evacuation and aid manual firefighting efforts for a limited . Our accreditations show just how seriously we take our responsibility to ensure the services we provide comply with all industry regulations, particularly the Regulatory Reform (Fire Safety) Order. Found inside – Page 71MUSICIANS ACCORDIONIST FOR BAR, HILLBILLIES, AoV? Repertoire of thousands memorized; many years experience. ... Send $4. 25 for complete dem- JEILJ EASY TO onstrating kit of ___.,.__ CTATIONS Automatic Tear Gas I^Y'.f^TlTAs ... Here at Teal Products, we are leading suppliers of AOV systems, so we've created this informative blog to give you all the information you need about them. impracticable. Automatic opening vents are triggered by heat or smoke and work by opening . A SHEV system increases the escape time for buildings occupants. Found inside – Page 18Mail requests with a cashiers check or money orde ? payable to DEFENSE AUTOMATED PRINTING SERVICE to Southwest Division ... Tentative issues date is on or about 26 February 1998 with an opening date of apprar Ed mately 30 days later ... As an independent company we strongly believe that our strength is in providing solutions…. Whatever your fire safety challenges, contact our team today for a FREE consultation. Inhalation of toxic fumes and smoke kills 90% of all fire victims and not the actual fire. Available in a range of sizes to achieve 1m² airflow or 1.5m² ideal for corridors, stairwells or smoke shafts. Effective communication plays an important role in all medical settings, so turn to this trusted volume for nearly any medical abbreviation you might encounter. Symbols section makes it easier to locate unusual or seldom-used symbols. Smoke can exit the building whilst fresh An AOV system is designed to create and maintain a smoke-free layer above the floor, reducing the build-up of smoke and heat. AOV Maintenance. Mechanical systems are useful where natural airflow is insufficient or The new AOV is uniquely designed to offer both a centrally positioned or off-set motor to cover both aspects of ventilation and access, giving building users peace of mind. VAT Number GB861382029. AOV windows. The book also provides a LINK CODE for ongoing updates and web-based downloads. Euro Firefighter covers a broad range of issues important to anyone who steps off a fire truck at the scene of an emergency. As an independent company we strongly believe that our strength is in providing solutions. Smoke Detector for AOV Window Smoke Vent. Smoke Vents usually are supplied in 2 systems for AOV control; AOV single zone or AOV multi zone. Smoke can exit the building whilst fresh air can enter. EMB 72hr bbu Control panel/s or transformers. Quick, automated smoke ventilation also allows fire fighters to move and manouevre more freely and keeps the majority of the building smoke-free, which means AOVs can significantly reduce the time it takes for fire services to locate and extinguish the fire itself while creating a smoke-free environment for carrying out rescue and recovery. We are the preferred installer for many Architect led designs and have been called upon to install AOV systems to new . natural airflow dynamics to remove smoke. Reflects infrared light and heat radiation. This book constitutes the thoroughly refereed post-conference proceedings of the 15th Nordic Conference in Secure IT Systems, NordSec 2010, held at Aalto University in Espoo, Finland in October 2010. Smoke & Heat Exhaust Ventilation Systems (SHEVS). To comply with the latest building regulations (BS7346 and BS5588) every communal stairwell must have an AOV to extract smoke. The AOV (automatic opening vent) range is designed to control smoke and natural ventilation. Automatic vent opening systems triggered by detectors or control points, and are designed to clear the smoke by opening appropriate vents to create ventilation and allow people to leave the building safely. AOV windows can take up to 5 working days to reach you depending on stock levels. Get advice from the experts today. Provides a U-value of 0.9 W/m2K. AOV Automatic Opening Vents. Induction/Impulse (or jet) fans clear Protects against fall through or burglary access. Please feel free to call us to discuss your requirements. with greater visibility and access for firefighters. We offer commissioning on all AOV windows which includes linking to to the fire alarm and providing a certificate stating that the system is compliant with various regulations. We offer commissioning on all AOV windows which includes linking to to the fire alarm and providing a certificate stating that the system is compliant with various regulations. Our expertise in smoke ventilation solutions enables us to design tailored AOV systems suited to your requirements, including: We are able to offer a complete fire safety solution – available as part of a unique ‘Total Care’ fire safety package – which starts with full risk assessment to highlight areas that need attention, and keep you compliant. Read more £ 380.00 (Ex. Read More. Alternatively, we offer over 12 different sizes available for back order in a wide variety of options. Automatic opening vents are a ventilation and fire safety system used to control smoke when triggered by a fire. Please expect 6-10 Weeks Delivery for bespoke options. Requirement B1 addresses fire safety precautions which must be adhered to, to ensure the safety of occupants, firefighters and those close to the building in the event of a fire. If a fire breaks out and communal corridors and staircases are filled with smoke, an AOV system . In an attempt to understand why, despite enormous efforts, we persistently fail to learn from catastrophic events, this book uses the details of the Grenfell fire as a case study to consider why we don’t learn and what it would take to ... £ 128.70 Add to basket. Mechanical Smoke Ventilation systems If you have any questions regarding our Smoke Ventilation Systems please don't hesitate to contact our specialist team +44 (0) 1922 711185 or sales@surespancovers.com. An AOV will help minimise the accumulation of smoke and heat in corridoors and stairwells ensuring they remain accessible. VAT Number GB174009227, 0333 010 2000 Capable of being bottom, top or side hung opening and available with chain or spindle actautors. We can install, service, maintain and repair your AOV Smoke Vent systems. Due to the high fire safety standards required in buildings, AOV rooflights must comply with BS EN 12101-2:2003 and require a CE mark which means they fit within . Surespan 'SureDome' AOV - Designed as a smoke release ventilator and to give natural light into the building below. AOVS London - Our Automatic opening vents ensure that escape routes are clear from the smoke. 2 3 SE Controls SE Controls is a leading international specialist in the design and delivery . Found inside – Page 777TEL : 312-685-7300 ( Automatic Vent Valves ) Pelsue , T.A. , CO . ... TEL : 213-727-7991 AOV Industries , Inc. 4545 E. La Palma Ave. , Anaheim CA 92807 FAX : 714-777-9626 .. TEL : 714-779-2252 ASC Complex Co. , Inc. 75 Spring St. An AOV system is a control system designed to vent air or smoke for use in natural & smoke ventilation. Transesophageal Echocardiography for Congenital Heart Disease represents a unique contribution as the only contemporary reference to focus exclusively on the clinical applications of transesophageal echocardiography (TEE) in congenital ... Roofglaze Automatic Opening Vent Rooflights (AOV). Finally, this book can be used as a basis for small group discussions, especially in emergency medicine training programs. This book contains a variety of medical case studies from actual patients presenting to the emergency department. We supply to commercial and residential property developers, builders, roofing contractors, the merchant trade and to private, individual homeowners with fast delivery. fire, smoke detectors will activate the natural smoke venting system on that Request yours today and ensure your people and premises are fully protected. Report this post. fume ventilation to prevent the build-up of vehicle exhaust gases in normal day fully concealed, internal Automatic Opening Vent (AOV) which matches minimalist aesthetics and functionality. Description. vent at head of stairs dwelling dwelling dwelling 7.5m max Stairwell vent at head of stairs dwelling Smoke Detector uniVent smoke shaft dwelling dwelling dwelling dwelling Typical Floor Plan see page 3 for details AOV (Automatic Opening Ventilator) For single staircase buildings Manual switch Signal to open stairway ventilator AOV Must be 1.5m2 . Glass Skylights, Polycarbonate Domes & Pyramids, AOV Automatic Opening Smoke Ventilation Systems in bespoke & standard sizes. BS EN12101 Smoke and Heat Control Systems. Group SCS has assembled a range of kits for most common applications, such as stairwell ventilation and lobby protection that are available off-the-shelf at a low cost. The role of Automatic Opening Vent (AOV) rooflights in today's Smoke and Heat Exhaust Ventilation Systems - Article by our own David Brown in this… Liked by Adam Shepherd MIET Craig Wheatley Group and Acoustics Director delivers review record breaking year and 2020 ambitions and forecast! Escape routes are adequately lit and exits are suitably signed.f. An AOV is short for "automatic opening vent" the AOV system was designed to create automatic air openings within an environment for smoke ventilation and safety. Features an integral concealed quick-release pivot door hinge, chain drive actuator and 3-point latching mechanism. AOV Smoke Ventilation Systems Crossflow have over 30 years of experience in smoke ventilation systems and natural ventilation systems which has brought Crossflow to the forefront of smoke/heat extraction and natural ventilation systems in the Irish marketplace. Found inside – Page 33333Pneumatic Actuators , Automated Assemblies ) ( 800-7761260 ) . ... Off & Vent Valves ; Manual & Automatic Versions ; 3/8 " , Through 6 " Sizes ; Available For General Purpose , Hazardous Duty Or Oxygen Service ) ( 765-2843304 ) . An AOV system is used to control the ventilation when a fire occurs within a building. Single zone, non extendable - 3A PSU . Made of resistant mesh inserts in steel alloys. This means that we have fully licenced keys which enable us to download the programming of your system, which intern means that if there are any issues we can reload and correct faults simply. The main purpose of an AOV system (Automatic Opening Vent) is to aid evacuation by helping to clear lobbies, stairwells and corridors in the event of a fire through ‘smart’ smoke control, allowing a safe route to the nearest means of escape for building occupants. In the Secretary of State’s view, requirement B1 is met by achieving all of the following: a. This one stop solution for smoke vent requirements to meet building control can achieve 1m² airflow and are available in standard stocked sizes or made to any size in between 900 x 900 and 1260 x 1260. Requires acoustic/ airtight seals. Natural Smoke Ventilation is a cost-effective Automatic Opening Vent systems (AOV system) are a ventilation solution that can be integrated into the structure of a building. Automatic Opening Vents (AOVs) and Smoke Vents . from £55 per visit. All Rights Reserved Surespan Limited, Triple Layer (Clear or Opal) PMMA Glazing. But with confidence with AOV-Direct. They have extremely low air permeability characteristics, low profile and aesthetic features offer the ideal solution for modern buildings. Smoke can exit the building whilst fresh air can enter. AOV Automatic opening vent control equipment. Fits Surespan and all other upstands. This book provides the most up to date information on every aspect of clinical care relating to patients with advanced heart failure who require mechanical circulatory support as a treatment strategy. Louvres, dampers, and powered smoke extraction fans • By keeping escape and access routes free from smoke• By facilitating fire-fighting operations• By reducing the risk of the fire developing further• By protecting the contents of the building• By reducing the risk of damage to the building. The building shall be designed and constructed so that there are appropriate provisions for the early warning of fire, and appropriate means of escape in case of fire from the building to a place of safety outside the building capable of being safely and effectively used at all material times. Our company specialises in Automatic Smoke Opening Vents systems that are installed to provide buildings (communal stairs and corridors) stay almost smoke free in the event of a fire. method of meeting the requirements of Approved Document B. exhaust it into the atmosphere, offering a safe means of escape for occupants, floor. Stardome smoke vents open up to 140° and are supplied complete with a thermally broken powder coated aluminium kerb or an adaptor kerb if thre is an existing kerb in . AOV Smoke Vents. Provides U-value of 2.7 W/m2K for unheated buildings and garages. Hello Zs, There are two general types of AOV smoke ventilation. Lid Finish: Opal Polycarbonate. Factory cut aluminium profiles designed to fit perfectly under the rain apron for enhanced security and a long 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.
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