Features and benefits. £3. Use code 250Save / Spend £500+ Get 10% off. Replacement windows should be fitted with trickle vents regardless of whether the windows being replaced had vents in them or not if no background ventilation alternative is being installed. All Tools, Fixings & Consumables. Said to be bulky and unsightly . Acoustic background ventilator for a habitable room. bulk or standard packed (as sets or separate internal ventilators & external grills) mix and match colours. The ProSound Acoustic Vent system in white is a high performing acoustic background ventilator, providing up to 55dB reduction (Dn,e,w) and suitable for wall thicknesses of 140mm and above. available, and can provide higher levels of attenuation, however. Optional SoundOUT sound diffuser box can be fitted to minimise the transfer of noise through the vent. Our 3. Glidevale ALDB Acoustic Trickle Ventilator 4500mm - White. V. Acoustic test data available upon request. Trickle Vents by "Greenwood" we have these vents available in various colours and sizes. Will help to reduce condensation. 15. Ultra Vent and Grille; Energy saver humidity sensitive vent; Acoustic through frame. With its built in updraught and various operating modes the TTF Slimline is suitable for all types of windows. 0 ventilation system to keep your home ventilated effectively and energy-efficiently. Yale Trickle Ventilators - Yale UK. Substantial sound reduction of up to 39dB Dn,e,w. Humidity sensitive options available. Enquire. Doing this will help further reduce echo. to the body to ensure acoustic performance is achieved. Our trickle ventilator products are available for delivery as. 5000 mm2. Titon SF Xtra Flat Fit Vent (surface mounted). Our elegantly crafted trickle vents for casement windows come in a range of sizes, styles and colour options meaning there is something to suit every form of window. Acoustic trickle vents: noise-reducing acoustic vents are also available for external windows, facilitating the flow of air in and out of a building, while helping to prevent the ingress of external noise. Acoustic Trickle vents. New building regs for future homes 2025 in new builds will not have them, further more they will be trippled glazed. SM Ultima 2960 mm2 EA. Slot Size: 2no x 13-17 x 135mm. For example, if a window with a sound reduction of 35dB is used in conjunction with a background ventilator also giving a reduction of 35dB, the overall decrease will be somewhat less than 35dB. It can be seen that the noise through the trickle vents dominates the overall levels, and a higher performance of the trickle vent would be required in the 500 Hz and 1 kHz octave bands if lower internal levels are sought. CALL FREE: 01707 830 732; Today's opening times: 8am - 6pm. 57 Ex. Find out how to easily retrofit a trickle vent to your door with our step by step video to guide you. TTF Slimline Ventilator. About this product. 5. Equivalent area: 14,427–34,032 mm²/m. Habitable rooms and kitchens: 8000mm2 EA. We supply acoustic ventilation from leading. They're easy to install, cost effective, unobtrusive and easily operated by the occupant. External cowl reduces light and draughts. At the FITSHOW 2013, we launch the first of the “Link Vent” range of patent applied for trickle ventilators. Surface mounted window vents are specifically designed to operate in conjunction with a routered airflow slot through the frame or sash. Schüco Ventilation Vents AWS VV are available as opaque side-hung vents with face widths of 300 mm, 250 mm and 170 mm. Renson's window vents are no exception: they excel in their clever design. Sometimes the best way to achieve the best acoustic performance in new build applications is to upgrade from a traditional ventilation strategy, e. Adding an extra pane of glass with our triple glazing will only provide a small increase in sound insulation, if all three panes are of the same thickness. The EAQ42W is one of the best performing acoustic window ventilators available in the UK. Classification Pr_30_59_94_90. Other finishes available depending on quantity. £9. Glazpart has taken trickle vents to a whole new level with the Link Vent Mk2 5000! It boasts a compact, low-visibility design with a. UK Manufacturer of home mechanical ventilation systems and hardware for windows and doors, including handles, hinges, trickle vents and extract fans. As expected, the standard vent was not very successful in keeping out noise. Highest performing acoustic background ventilator. The ProSound Acoustic Vent system in white is a high performing acoustic background ventilator, providing up to 55dB reduction (Dn,e,w) and suitable for wall thicknesses of 140mm and above. Customers have expressed concern about acoustic insulation, but a home can be ventilated without the window being opened. Although this vent supports compliance, we would urge you to read our handy guide before you purchase which summarises the new requirements. RW Simon FV Acoustic Vent 400mm 2500EA . - Enables secure, weather resistant ventilation with exclusion of. The SM 1000+ is a slim, unobtrusive surface mounted window vent that offers trickle ventilation. RW Simon Trickle Vents. This can be fiddly so it may be easier to cover the whole inside with acoustic foam before you start adding in the panels. 5000mm² Equivalent Area Performance from the smallest vent at 410mm long High levels of background ventilation are required when applying System 1 of the Building Regulations in new dwellings; Intermittent Extract Ventilation and Background vents e. 60. Glidevale Protect TVES4dB Acoustic Energy Saver Humidity Sensitive Trickle Vent - Trickle Vent . Acoustic trickle vents often involve totally different window frames or bolt on additional sections, I'd be surprised if you can find direct replacements. Do trickle vents let in noise? So trickle vents are terrible for noise intrusion, look ugly and let the heat out. Most importantly, it influences the health of those who live and work in the building. Dimensions. Glidevale Fresh 99 & 99HdB Wall Ventilators Download. Improved Db reduces noise to new levels of performance, especially in the closed position. Trickle Vents. The trickle vent is constatntly closed due to the noise, will an acoustic vent be a significant improvement on a closed vent or only compared to an open basic vent. Proposal It has been proposed to redevelop the former Maybloom Club site, Bostall Hill, London, SE2 0RA, toSlimline vent design has clever two stage opening. Trickle vents provide effective background ventilation in a home, which may help to minimise the severity of health problems like. We explain what trickle vents are, why you need them, and how to choose products with a. Surface mounted noise reducing acoustic trickle vent. Condensation reduction; If your home has a problem with. Our 3. VAT)*. Qty Glidevale ALDB Acoustic Trickle Ventilator 8000mm Add to Basket. The latest additions to our acoustic offering is the Tunal Range which represents a series of on the frame and. Designed and developed in the UK, Yales SlotVent allows an appropriate amount of air to pass through the window, helping to remove stale air and reduce condensation and mould, as well as enabling people in cities or near busy roads to benefit from ventilation without having to open their windows. 4000EA. We supply the Greenwood Acoustic vents, designed to reduce noise, and regulate humidity throughout the day. If the windows are modern double glazing with trickle vents, it may be beneficial to replace the vent covers with acoustic trickle vent covers. By allowing a controlled amount of fresh air to enter the room, window vents help to reduce condensation, dampness, and mould growth. With the inclusion of high efficiency acoustic foam the product reaches an acoustic attenuation of up to 42. Acoustic FV (Framevent) Supplied with a PVCu internal flap unit and aluminium external canopy. favorite_border. Qty BPD Store. Addition of a wet room to an existing building: 5000mm2 EA. Recently organised window fittings at a relatives house. Aquwall HY acoustic trickle vents are designed to provide ventilation and fresh air through the window frame, while keeping windows shut and your home secure. They told me that as my windows would have trickle vents, the acoustic glazing would not be beneficial for noise reduction. Finish (inner and outer). Designed to improve natural ventilation in the home, trickle vents have often proved unpopular with homeowners because they can spoil a window’s aesthetic appeal. Simon Ltd Air Management. timber or woodaluminiumclad window systems. VAT) Order Quantity. Rytons Super Acoustic Controllable LookRyt AirCore is a simple and efficient answer to background ventilation. MA3051 ACOUSTIC VENTILATOR. Read More. Easy Installation: Our non-invasive installation process is window. Airflow, acoustic properties and test standards. RW Simon Ltd has an extensive range of Trickle Vents ranging in all different sizes to help achieve the amount of free area or equivalent area required to naturally ventilate a building in order to conform to building regulations, our range includes both. Bi-Fold Door Hardware. Attic baffles, also known as rafter vents, are essential for proper attic ventilation and moisture control. Our largest vent, the TVALdB800, is capable of sound reduction up to 42dB Dn,e,w. Availability: Item stocked in our warehouse. This is due to sound reduction levels being measured differently for trickle ventilators when compared to windows. Call us on 01536 511874 (8:30am-5pm weekdays) or email admin@rytons. Trickle vents are activated with a single finger and provides passive. Background Ventilation is a key product for a healthy living environment. As UK stockists, Window Ware are proud to stock a wide range of RW Simon trickle vents, including framevents, acoustic vents, TTF slimline, as well as their ever popular vent-a-matic circular window vent. Single/Multipack. 73 £ 4. Single. Rytons are the leaders in vents for all applications and their acoustic performance is second to none. 125 months. Most types of vent are available in a choice of colours to best suit the window frame and be as unobtrusive as possible. *Series 5 & 6 Requires controls kit – sold separately. 85 +VAT. Acoustic performance tests by BRE Acoustics. 1. Trickle ventilators. Trickle vents allow for a small amount of ventilation even when the window or door is closed. Ventilation in windows and doors must extract excess water vapour, air pollutants and condensation. Can be installed in internal wall constructions of between 100mm and 150mm. The SM ACOUSTIC offers 2500mm2 EA airflow whilst simultaneously providing up to 40 db DneW sound reduction, even in the open position. View. uk +44 (0)28 9061 6505SF Xtra Sound Attenuator (Acoustic) Vent FOR USE ON PVCU, TIMBER OR ALUMINIUM WINDOWS. acoustic result. 79. Acoustic STC – S13 4000 vent – open 33dB – closed 45dB Acoustic STC – XS13 412 vent – open 32dB – closed 41dB Acoustic STC – XS13 497 vent – open 32dB – closed 35dB . a background ventilator such as a trickle vent. Helps to prevent mould and mildew. These can be large and not aesthetically pleasing but are essential so as not to compromise the soundproofing of your acoustic glass. Resources. As I type this. As ventilation specialists, we are also proud to supply. Ideal for both timber and PVCu, the Framevent has been specifically developed for the volume market. Donald BSc (Hons) AMIOA T: 0330 043 1764 Page 4 of 24 1. Thanks to the use of sound-absorbing foam, they dampen external noise much more effectively than standard hoods. Acoustic window vents are the answer! Our range of high-performing acoustic trickle vents for windows block out noise and help to soundproof, along with allowing fresh air in to create a comfortable, well-ventilated environment that combats condensation. Titon Trickle Vent Trimvent S13 2700EA. You can get acoustic trickle vents for windows which apparently stop sound much better than ordinary ones. WHITE 400mm Trickle vents from just £3. ukClick above on the desired portal to log in or register. RW Simon Trickle Vents. 1000 Pa. Where high acoustic performance is required trickle vents should be avoided as they will have a detrimental effect. • Maintains the. Available in 3 standard sizes and six standard colours, the unit. As I type this. Titon trickle vents are one of our most popular and reliable vents; each set comes complete with inside and outside canopy, screws and matching cover caps. Trimvent® Select Xtra S13 is a surface mounted plastic slot ventilator that fits over a 13mm slot in a window and provides an Equivalent Area (EA) of 2000mm2, 4400mm2 or 5000mm2. With its built in updraught and various operating modes the TTF Slimline is suitable for all types of windows. 66 Inc. Available in 3 external cowling colours. Trickle Vents, known also as background ventilators, are natural ventilation devices which can be integrated into façades or window systems as an alternative to operable vents, specifically. Glidevale Protect offers a wide selection of roofing ventilation products suitable for all tile and slate roofs. W. The acoustic range incorporates all the features of the standard Aircool® plus additional acoustic attenuation features. Click & Collect. An alternative is to install acoustic trickle vents. The Glidevale range of trickle ventilators (tricklevents) can be used to provide background ventilation in all types of building. Wasn't sure where to post this ! We moved into a new house in June2010, when it started getting colder we closed the trickle vents on all the windows but still have a draught coming through them. Aquwall HY Products. Your cart will contain total 27 points that can be converted into a voucher of £2. The latest addition to the Simon acoustic range. Windows can be new or already installed, our trickle vents fit with almost all window types. . Up to 40 db Dne W. Glazpart is proud to launch a new range of plastic injection moulded trickle ventilators to meet the needs of today’s building designers, window fabricators and installers. I find them more of a hinderence than anything and was wondering if anyone has any experience with ‘filling them’. 400mm. Acoustic options with enhanced sound reduction up to 50dB. News: Titon Appoints New CFO. Location. English - United Kingdom. Burglar-proof performance is desired in some cases. The vent has one of the highest decibel ratings on the market for a non-acoustic vent. AirLiner: Extends from. Trickle Vents - Flush Fit (Brown - 300mm) £ 5. This can cause health issues through humidity, such as dust mites and mould, or even impact on the long-term. Acoustic SL (Slimline). Our aluminium vents (look for the reference VAL) have thermal seals to stop draughts when closed. RW Simon Slotvent Joiners . Discover more. FREE DELIVERY on orders over £600 (£500 ex. Spent ages reading about it and it seems that they make a huge difference in terms of noise. 89. Adjustments to slot heights may be needed to achieve the EQA requirements. If you live near a busy road or an airport, trickle vents can be designed with additional acoustic options to give even more noise reduction benefits. It can be fitted with an XC13 canopy or GS22 grille. Yale® is a world leader in residential security and the huge range of products stocked at Window Ware include Lockmaster multipoint door locks, window locks, shootbolts, letterplates, door locks, nightlatches as well as security products like the Yale conexis with Z-wave technology. The purpose of trickle ventilators is providing a consistent flow of fresh air. 'usually' trickle vents in upvc/alu are 'in frame' as shown below (its the horizontal bar on the top of the frame) Passivent’s range of natural ventilation products includes wall and window ventilators and roof mounted ventilation terminals, all of which can be linked to an intelligent or stand-alone control system. Acoustic lining reduces sound by 38dB with internal grille fully open and 39dB when closed. Acoustic Duct Versions. Skip to content +44 (0) 1732 850770 projects@passivent. It is the shortest vent available to provide 5000mm² EA. More about us. The Simon Framevent HF & HF + tricklevent range have been designed to help comply with. Glidevale Acoustic Energy Saver Humidity Sensitive Trickle Ventilator is a humidity sensitive, acoustic through frame window vent. It is suitable for retrofit applications and has independent testing and certification. Your Price Apply / Login. They deliver a constant airflow without having to actually open the. Glidevale ALDB Acoustic Trickle Ventilator 8000mm. 4080mm² measured area 2500mm² Equivalent Area. The acoustic trickle vents are designed to. 0800 970 4190. Core drilled – suitable for retrofit installations. Automated control of differential pressure provides your house with a proper volume of air and, in addition, considerably reduces thermal. The ‘p’ (projection) dimension of each can vary depending on if it is open or closed. Platinum 3 Star Euro Profile Cylinder. Many homeowners, architects and double-glazing companies prefer to avoid trickle vents as they can affect a property’s overall aesthetics, energy efficiency and acoustic performance. 5 year old house has trickle vents on every window, which let in a huge amount of cold air even when closed. The SM ULTIMA is a high quality, ABS acoustic window vent offering 2600mm2 EA airflow and providing a 40 db Dne W sound reduction in the. Triton brand aluminium trickle vents give you a small amount of ventilation via the window frame or a door frame as controllable or permanent version to reduce condensation in the room and freshen the air with natural ventilation. VAT. RRP from £2. AtomicRitual · 07/12/2022 18:18. 39 (0;-2) dB. Over-head extract fan / trickle ventilator. Glass-fitting Ventilators. Whatever your query, please get in touch. CALL FREE: 01707 830 732; Today's opening times: 8am - 6pm. Quantity: Add to cart. However, they are intended to be left in the open. Visit our website now. As one of the market leaders in tile ventilator manufacture in the UK, Glidevale Protect’s range has been collated for over 35 years and includes hundreds of dedicated profiled tile ventilators matching almost. Hit & Miss: 271mm L x 95mm H. Rytons Super Acoustic Controllable LookRyt AirCore is a simple and efficient answer to background ventilation. The SF Xtra is factory-made to standard sizes. Directs airflow upwards avoiding draughts and discomfort. Trimvent XC16 uPVC/Timber Window Vent - Canopy - 312 x 16mm - White. favorite_border. 99. Duco Acoustic Ventilators. Please be vigilant of fraud/cyber crime. VAT. We are Closed 23rd - 26th December & 30th December - 1st January (Open as usual 27th 28th 29th December Back to normal Hours 2nd January 2024). Glidevale Ultravent Trickle Ventilator External Canopy Grille - White - External canopy grille provides weather protection and 4mm insect ingress protection. 78 (ex. 10 inc. . NBS Source. Glazed-in window vents are activated with a single finger. Using Our Jig. Trickle vents are activated with a single finger and provides passive. Trimvent® Select Xtra S13 FOR USE ON PVCU, TIMBER OR ALUMINIUM WINDOWS. V. The RW Simon Ltd TTF Slimline window trickle ventilator is a through frame trickle ventilator that is a robust, yet stylish aluminium ventilator. £7. What are acoustic trickle vents? Our range of high-performing acoustic trickle vents for windows block out noise but let fresh air in to create a comfortable, well-ventilated environment that combats condensation. Glidevale ALDB Acoustic Trickle Ventilator 4500mm Add to Basket. 6300mm². Typically, standard trickle vent covers offer around 30-35dB noise reduction, whereas an acoustically treated trickle vent cover may offer a 40-45dB reduction when installed perfectly. Unfortunately, moisture in the air is common in everyday living and it needs to go somewhere and we need changes of air too. Summary 1. 400mm long with 2 x 13 x 162. Qty BPD Store. The best acoustic attenuation reached so far by a trickle vent is the effect of combining our reliable Ventair TRDn controller with a two-stage acoustic attenuator installed in our Ventair Akustik air intake. Range includes: Standard through frame. stabilised. Doormaster. A surface mounted aluminium slot ventilator, the Titon SF Xtra Flat Fit Vent is ideal for new-builds or to be retro-fitted. Add to Basket. New trickle vents are being launched to offer. . 4080mm² measured area 2500mm² Equivalent Area. Achieves Building Regulations’ EA requirements. D n,e,w (C;Ctr) – Open position. Add to Wishlist. g. VAT. Acoustic energy saver humidity sensitive ventFramevent PVCu Ventilator. Trickle ventilators provide ventilation to the room without the need to open the main window, reducing noise levels as a consequence. Acoustic Dn,e,w (+/-) – vent open 32 (0;1), vent closed 43 (0;-1) Finishes. . Glidevale Energy Saver Humidity Sensitive Trickle Ventilator automatically adjusts it flow rate in response to humidity levels in a room. Titon Hardware Ltd. The acoustic Trickle Vents can also be powder coated to any standard RAL colour. These trickle vents are screwed to the frame and can be operated by simple finger control. The overall vent length. One of the most popular choices for passive ventilation. The Trickle Vent brings you the Sonovent Acoustic Solution which was developed to meet the two aspects of living comfort: Physical Comfort – fresh and healthy air without draught; Acoustic Comfort – up to 56 dB noise reduction; There are also four types (S/M/L/XL) with four possible air gasps (10,15,20 or 25 mm). Whilst trickle vents are published with acoustic values this can often be misleading due to the criteria on which they are valued. The SF Xtra is a high performance, surface mounted aluminium slot ventilator. This is more representative of a design in the UK that relies on trickle vents for a natural ventilation solution. If a property is located in a noisy area, near a busy road or airport, a noise attenuating ventilator (acoustic vent) can be used. Available in standard, acoustically attenuated (for noisy install locations) and humidity sensitive (which open in response to high humidity events), the range is designed to meet even the toughest window trickle ventilation requirements. RW Simon Ltd has an extensive range of Trickle Vents ranging in all different sizes to help achieve the amount of free area or equivalent area required to naturally ventilate a building in order to conform to building regulations, our range includes both. 99. Removable cover pannel conceals Ventient trickle ventilation unit. Energy saving, reduces over ventilating. Adding secondary glazing means sound must travel through another layer of glass and air space between, helping to diminish its energy and improve sound proofing. The. Energy efficient, minimise heat loss. R. This includes products such as the surface mountable SM Acoustic window vent, which offers an acoustic reduction of up to 40dB while open. Enquire now, call 01805 623721. These are areas such as kitchens, bathrooms, utility rooms etc, where appliances, showers and baths produce large amounts of moist, damp air which needs to be expelled from the room. 4. TV90 TV250 Internal Trickle Ventilator: TA660GT:. The latest addition to the Simon acoustic range. It can be fitted with an XC13 canopy or GS22 grille. 9 Feb 2017. Trickle Vents by Greenwood are available in various styles & Sizes Starting from 4. com. The vents have an effective free area, in terms of how much air flows through, of around 4000 sq mm. Good luck kaintheo, Jan 20, 2008 #4. As of the 15th of June 2022, new regulations were introduced, making it a legal requirement for windows in England to be equipped with trickle vents. Titon offers a range of acoustic products for ventilation and sound attenuation, including acoustic trickle vents, slot vents, mechanical products and ducting. Ventilation helps you to protect the building fabric long-term, save energy and retain the value of your property. Acoustic trickle vents now make it possible to obtain planning permission for new developments that are situated near a busy road, train lines or an industrial site that would have been refused. The kitchen has an extractor vent , also a vent for the boiler and trickle vents on the double glazed windows. Hybrid versions of these products provide part natural/part mechanical ventilation and operate in three modes – mixing, boost and passive. I am in a new build house (4 years old) and I am looking to improve the soundporoofing to the front of the house. The 13/16” dimensions are always constant; therefore the body length is always 1-5/8” shorter than the overall length. The Acoustic Vent range is perfect for installations in areas where there are high levels of noise. AC2. Went to a neighbour who had new stuff put in a cpl years with acoustic lamination and it was perfect - virtually completely silent. Environmental Noise Assessment K. Suffix product code with:-020 (white), -001 (SAA. But yes you must have some form of ventilation, either trickle vents in the windows, acoustic trickle vents in the walls or a heat recovery system. Buy Trickle Vents online - this how-to guide we will be showing you how to replace a Titon Trimvent Select Tr. Retro-fitted core ventilator with external cowl for background room ventilation. The Trickle Vent brings you the Sonovent Acoustic Solution which was developed to meet the two aspects of living comfort: Physical Comfort – fresh and healthy air without draught; Acoustic Comfort – up to 56 dB noise reduction; There are also four types (S/M/L/XL) with four possible air gasps (10,15,20 or 25 mm). Established in 1958, R. 00) - Casement Window. Zehnder ComfoAir Range. Yale SlotVent is supplied with pre-fitted clips for easy installation with optional screw holes to fit optimal 13mm slot. The SlotVent range comes in three sizes – 2500EA, 4000EA and 5000EA, which means they can be used on their own or in combination to reach the 4000mm 2, 8000mm 2, or 1000mm 2 Minimum Equivalent Area thresholds now required for bathrooms, kitchens and habitable rooms in either multi-storey or single-storey dwellings. Our 2500EA and the 5000EA equivalent area vents are the smallest acoustic window vents on the market and achieve the best acoustic performance for window ventilators in the UK - up to 45dB (A) It is a simple and adaptable solution for windows in residential dwellings that have external noise issues or planning restrictions. TTF Slimline Ventilator. Acoustic windows and glass are NOT a 100% soundproofing window solution but you can achieve considerable noise reduction. 250-368mm L with air brick fitted. The more air that you allow through a ventilator, the worse the performance you will get with the acoustic performance. W x H x D: 260 x 90 x 7mm. The vents have an effective free area, in terms of how much air flows through, of around 4000 sq mm. The main performance concerns of Trickle Vents are the ventilation rate, thermal insulation, acoustic resistance, water tightness, and air permeability. 5 year old house has trickle vents on every window, which let in a huge amount of cold air even when closed. A time served trickle ventilator found on most double glazed windows. Available in 2 sizes: This vent 2500EA - 250mm (L) x 25mm (H) x 70mm (D) Internal/86mm (D) External. Specifying one different pane thickness will increase sound insulation. Durable, easy to fit and fully tested. Was the window firm aware that the windows were being fitted for noise reduction? We've just had some new windows in and asked them to quote for triple glazing for sound reduction. The main performance concerns of Trickle Vents are the ventilation rate, thermal insulation, acoustic resistance, water tightness, and air permeability. The trickle vent operates automatically. A range of ventilation rates available. Restrictor with ventilation position. We are Closed 23rd - 26th December & 30th December - 1st January (Open as usual 27th 28th 29th December Back to normal Hours 2nd January 2024). Windows and doors are vital for effective background and purge ventilation, but performance has to meet the specific demands of Part F. Akustik Higroster is a two stage trickle vent controlled with both pressure difference and air. The Acoustic Energy Saver Humidity Sensitive (TVES4dB) and the Acoustic Low Profile (TVALdB450 and (TVALdB800) reduce sound travelling through the vent, whilst allowing ventilation into the property. Passivent’s Acoustic Aircool range is available as both a window or wall ventilator. By buying this product you can collect up to. Complete with a thermal foam seal, a 10mm slot size and sleek rounded external hood it is the perfect slimline surface mounted vent solution. Environmental Noise Assessment K.