It is the shortest vent available to provide 5000mm² EA. Available in 3 standard sizes and six standard colours, the unit. 400mm. Most importantly, it influences the health of those who live and work in the building. 09 (ex. Surface mounted noise reducing acoustic trickle vent. Trickle vents ; Trickle vents. Passivent’s Litevent is a controllable roof ventilation. ukGREENWOOD ACOUSTIC 5000EAW. Keep your trickle vents open. Trickle Vents are designed to provide fresh air ventilation for improved in. The Invisivent ® Air and Comfort window vents by Renson ® are controlled by the smart Healthbox 3. As I type this. Obviously I would want to not fill the mains ones such as kitchen or the. 400mm Tan and White Trickle Vents (internal and external fittings) £9. Stocking part F compliant window trickle vents from brands like Glazpart, Greenwood & RW Simon. 5000 mm2. 99. R. Your Price Apply / Login. The ‘p’ (projection) dimension of each can vary depending on if it is open or closed. Explore our product database and get technical information on VELFAC product ranges - including open features, accessories and more. Using Our Jig. • Multiple trickle vents may be required to meet minimum airflow requirements. View. Choice of slot size. 125 months. Trickle Vents Framevent Hi-Flow (Anthracite Grey - 415mm) An Anthracite Grey trickle vent designed to help comply with Approved Doc F 2021, whilst maintaining the aesthetic of the Framevent range | 415mm Length x 28mm wide. V. 0 ventilation system to keep your home ventilated effectively and energy-efficiently. VAT. hello@brookvent. Performance for the various elements is as follows; Table 2 - Facade element example performance Element Octave Band Frequency (Hz) Noise Level 125 250 500 1000 2000 4000 (dBA) Trickle Vent 373635 34. The fans run 24 hours per day (usually 22 hours on trickle and 2 hours on boost) but this is directly related to occupancy in homes. Trickle Vents - Flush Fit (Brown - 300mm) £ 5. Supplied with a removable protective cover. These trickle vents are screwed to the frame and can be operated by simple finger control. UPVC & Wooden Windows. 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. This is a type of acoustic soundproofing. 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. By buying this product you can collect up to 27 loyalty points . Available in white or brown. I am in a new build house (4 years old) and I am looking to improve the soundporoofing to the front of the house. Our sets comprise of an internal canopy and an external hood with an in-built fly screen. The 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. 60. The products are made from high. Trickle vents ruin any acoustic performance gains. Ventsys Trickle Vents – Free Shipping. Glidevale Acoustic Energy Saver Humidity Sensitive Trickle Ventilator is a humidity sensitive, acoustic through frame window vent. Enquire now, call 01805 623721. By installing trickle vents into your doors, you can ef. Removable cover pannel conceals Ventient trickle ventilation unit. Lockable restrictor (160mm or 270mm) Click vent. The SM ACOUSTIC offers 2500mm2 EA airflow whilst simultaneously providing up to 40 db DneW sound reduction, even in the open position. The more air that you allow through a ventilator, the worse the performance you will get with the acoustic performance. 70 . The link vent is our latest and most advanced trickle vent and the instructions are provided for the shorter 2500 (EQA) vents and its big brother the 5000 (EQA). uk | 01234 242724 Room Minimum equivalent area (EA) of. Retro-fitted core ventilator with external cowl for background room ventilation. Glidevale Ultravent Trickle Ventilator External Canopy Grille - White - External canopy grille provides weather protection and 4mm insect ingress protection. The easiest and cheapest option seems to. Trickle vents are by far the cheapest and most practical solution to achieve the regulations for both new build and replacement markets. also available as 5000EA - 412mm (L) x 25mm (H) x 70mm (D) Internal/86mm (D) External. 96, Prolific: to 31/8/23 £663. Glidevale Ultravent Trickle Ventilator External Canopy Grille. ECOSlide uPVC sash windows come equipped with trickle vents as standard to meet Part F of Building Regulations. 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. • Internal controllable trickle ventilator. Kitchen and Bathrooms are good locations for the use of trickle vents because of the condensation problems, but. This is particularly important in areas where this is more likely to happen, including. £7. Then press that piece back to back against another one. SlimVent has been designed with. Platinum 3 Star Euro Profile Cylinder. Learn More . Improved Db reduces noise to new levels of performance, especially in the closed position. Acoustic vents are now available. 5. 78 (ex. I discuss sound mazes in more detail in the article linked above, but watch this video for steps on how to build a sound maze. View Product. These may be required by building regulations in. The new 2500EA and 5000EA acoustic window ventilators from Greenwood Airvac make ‘sound’ new additions to the Window Ware range. W. Acoustic Trickle vents. wall. VAT. By buying this product you can collect up to. 55,000mm² equivalent area and space on the window profiles can sometimes be an issue. Surface mounted slot. This can cause health issues through humidity, such as dust mites and mould, or even impact on the long-term. Titon is pleased to announce the promotion of Carolyn Isom to the Titon Holdings Board as Chief Financial Officer. They are controllable, to give the option of having them open or closed. You can get acoustic trickle vents for windows which apparently stop sound much better than ordinary ones. Your Price Apply / Login. 79 inc VAT. Tel:. Trickle vents built into the frame will allow noise to seep into the room even when the window is shut tight. There is so. English - United Kingdom. Available in 3 external cowling colours. At the FITSHOW 2013, we launch the first of the “Link Vent” range of patent applied for trickle ventilators. Contact Us. RRP from £34. Doormaster. Designed to be a functional part of a window that lets air circulate through your home, according to Building Regulations, trickle vents come highly recommended. Keep your trickle vents open. Trickle vents are background ventilators integrated into window frames and door frames to allow a 'trickle-feed' of constant airflow from the outside to an internal space. Glidevale TVUG25 External Canopy Grille – BIM Object. Our largest vent, the TVALdB800, is capable of sound reduction up to 42dB Dn,e,w. 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. Surface mounted window vents are specifically designed to operate in conjunction with a routered airflow slot through the frame or sash. Range includes:2500EA4000EA5000EAInternal Vent Yale brandedPre-fitted clipsVent can be tilted 30. Technical Information. Specifying one different pane thickness will increase sound insulation. The SM 1000+ is a trickle vent with all the same great features of the SM 1000 – including slimline design, built-in insect grille and simple installation – but also comes with the added benefit of rod control operation. All new and replacement windows will need to meet these regulations or will fail the FENSA inspection, and will therefore not be eligible. Will help to reduce condensation. Concealed and surface-mounted. Helps to prevent mould and mildew. Acoustic Duct Versions. Add to basket. The latest addition to the Simon Acoustic Range - Please get in contact for more. Configurations and results. Resources. We are Closed 23rd - 26th December & 30th December - 1st January (Open as usual 27th 28th 29th December Back to normal Hours 2nd January 2024). The drawing they have provided is an over the frame vent, and not typical. Acoustic options with enhanced sound reduction up to 50dB. We do get asked how to cure damp and mould around windows and the first question we ask is "what ventilation do you have in the room". 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. Slot Size: 2no x 13-17 x 135mm. Resources. We also offer the acoustic window trickle vent range in a selection of anodised finishes. It will also provide far better ventilation, with a constant flow of clean, filtered air, than. A factor of 40 would be 10,000 times below ambient. Contact our team today. Trickle Vents by "Simon" we have these vents available in various colours and sizes. Range includes:2500EA4000EA5000EAInternal Vent Yale. Titon Trickle Vent Trimvent S13 2700EA. Trickle Ventilators Titon manufactures and supplies window and door hardware products ranging from background ventilators and window and door handles, to locking systems, hinges and restrictors. High performance acoustic vents such as Titon’s SF Xtra Sound Attenuator, are also said to offer vastly improved levels of sound attenuation. The vents have an effective free area, in terms of how much air flows through, of around 4000 sq mm. 18,395. Equivalent area: 14,427–34,032 mm²/m. 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. + VAT. Installing a background ventilator through a wall that provides the equivalent areas described in Approved Document F, volume 1 can be an. Discover how acoustic ventilation can improve indoor air quality and reduce noise pollution with Greenwood, the leading air ventilation system manufacturers in the UK. Enables secure, weather resistant ventilation with exclusion of insects. Surface mounted noise reducing acoustic trickle vent. Provides an outstanding Dn,e,w;42dB. Suitable for replacing vents in windows. Bi-Fold Folding Slide . € 39. 14. We supply trickle vents from manufacturers such as Greenwood, Glazpart and RW Simons. Adjustable flap aluminium ventilator with acoustic attenuation, for glazing-in to windows, overframe or wall mounting. SlimVent is available in 2500mm² and 4000mm² EA ratings. The RW Simon Ltd TTF Slimline window trickle ventilator is a through frame trickle ventilator that is a robust, yet stylish aluminium ventilator. Visit our website now. It can be installed over a 13mm. 10 inc. Single. favorite_border. Resources. Classification Pr_30_59_94_90. With its built in updraught and various operating modes the TTF Slimline is suitable for all types of windows. Acoustic trickle vents. Non-electric acoustic though wall vent, provides controlled background ventilation and noise attenuation up to 50dB Dn,e,w. Acoustic performance tests by BRE Acoustics. Durable, easy to fit and fully tested. The acoustic trickle vents are designed to. White Window Trickle Vents Ventilation UPVC & Timber Windows (#182414592060) ob (361). Donald BSc (Hons) AMIOA T: 0330 043 1764 Page 4 of 24 1. One of the major benefits is that it can be installed in the same. 894 The Crescent, Colchester CO4 9YQ United Kingdom. Trickle Vents by Greenwood are available in various styles & Sizes Starting from 4. test – a standard Titon slot vent and a so-called ‘acoustic’ slot vent. £3. This can be fiddly so it may be easier to cover the whole inside with acoustic foam before you start adding in the panels. 2) Are they straightforward to retrofit, ie do i just unscrew my existing vent, slide in the new one and screw in to place or is there more to it. Our trickle ventilator products are available for delivery as. Trickle vents also add enhanced sightlines, which is a key priority to customers. com' and any phone number given is. Stuff the Vent With Acoustic Foam. 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. The XS13 is a direct replacement for the S13 range, using the same slot measurements but offering a much greater. Our range of acoustic window trickle vents provide a cost effective solution to suit the needs of noise polluted sites. Low Voltage Powered Foundation Vents and Radon Powered Foundation Vents. Dutch - Belgium; French - Belgium; Dutch - Netherlands“ Acoustic” trickle vents are widely. • Maintains the. Duco Acoustic Ventilators. With window vents, you can ensure a constant and natural supply of fresh air into your home through dry rooms such as living rooms and bedrooms. Window ventilation is essential, and is also enforced by the building regulations. if you have trickle vents in these rooms then they should be acoustic, otherwise you are circumventing the expensive windows you have just specified/fitted. 4. Internal and external grilles U. Acoustic; Window Vents; Ancillaries & Ducting; Controls; Discontinued Products; Outlet;. g. Acoustic windows and glass are NOT a 100% soundproofing window solution but you can achieve considerable noise reduction. View. The latest additions to our acoustic offering is the Tunal Range which represents a series of on the frame and. It is the shortest ventilatior available on the market capable of provding an Equivalent Area (EA) of 5000mm 2 and can be fitted with a plastic or aluminium canopy. Can be installed in internal wall constructions of between 100mm and 150mm. In the closed position the slot trickle option provides upward defl ecting, draught free, ventilation up to 2500mm2/m (Open Area) Geometric Modular Sizes Geometric Equivalent Overall Overall Overall Open Area Area Slot Size Vent Length Hood Length 2000mm2 1705mm2 13mm x 160mm 240mm 205mm 3000mm2 2384mm2 13mm x 235mm 315mm. Sound reduction up to 50db D n,e,w. com. The SF Xtra Sound Attenuator vent is a compact and cost-effective acoustic slot ventilator that provides high levels of sound attenuation for PVCu, aluminium and timber windows. Greenwood 5000EAW. 08 Inc. Donald BSc (Hons) AMIOA T: 0330 043 1764 Page 4 of 24 1. Secondary glazing does not need trickle vents which improves the acoustic performance. Easy Installation: Our non-invasive installation process is window. The stylish design of the EHA² air inlet enables perfect integration on most windows or rolling shutter casings. Optional SoundOUT sound diffuser box can be fitted to minimise the transfer of noise through the vent. They are situated at the top of windows and can be easily adjusted through the use of cords, rods or simply by hand. Trickle ventilators are typically manually maintained slots integrated into window frames. | sales@windowware. 00) - Casement Window. Sound proofing with triple glazing. Trickle Vent Options. Location. The RW Simon Ltd TTF Slimline window trickle ventilator is a through frame trickle ventilator that is a robust, yet stylish aluminium ventilator. Horizontal strip, aluminium ventilator for windows with internal adjustable flap for airflow control. 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. Through Frame Trickle Ventilators, Acoustic Trickle Ventilators and Vent-A-Matic provide options to suit a range of needs. The acoustic attenuators come in three sizes; 25mm, 50mm and 75mm, which provide different dB reductions. Water sewerage refund: £170. co. Features and benefits: Provides 5000mm² equivalent area from a single vent; Available in 2 sizes: This vent 5000EA - 412mm (L) x 25mm (H) x 70mm (D) Internal/86mm (D) ExternalTrickle ventilation can be provided to ensure there is always an adequate level of background ventilation. The use of W dB would just clarify they are measuring a power instead of an amplitude, which could mean the difference of a factor of 2 in the dB. Natural Ventilation. Rytons Super Acoustic Controllable LookRyt AirCore is a simple and efficient answer to background ventilation. 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. Your Price Apply / Login. 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. Quantity: Add to cart. 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. 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). For use on timber and upvc windows and doors. Flush fit | White ABS Plastic | 300mm long x 20mm wide x 10mm deep (2,700 mm2 free area). Yeah, it might be the same mechanism as what they use for mufflers (in which you. This product is equally suitable for domestic and non-domestic applications. 0800 970 4190. Used as soundproof trickle vents, our products help reduce mould. Yale Lockmaster KeyTurn . Ventilation in windows and doors must extract excess water vapour, air pollutants and condensation. 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. Vent-Trex FOR USE ON PVCU, TIMBER OR ALUMINIUM WINDOWS. Burglar-proof performance is desired in some cases. Wind noise blowing across the vents if ours are anything to go by. This Video Is A HOW TO Guide on Fitting A Chlo Products Trickle Vent to A Window. Tel:. External grille provides weather protection and insect ingress. Trickle vents provide effective background ventilation in a home, which may help to minimise the severity of health problems like. Unfortunately, there’s no hiding the fact that they can look unsightly. The main performance concerns of Trickle Vents are the ventilation rate, thermal insulation, acoustic resistance, water tightness, and air permeability. Manufacturers and suppliers of ventilation and euro hardware products; trickle ventilators to window handles, locking and hinge systems to mechanical ventilation products. They're easy to install, cost effective, unobtrusive and easily operated by the occupant. com. D n,e,w (C;Ctr) – Open position. These can be large and not aesthetically pleasing but are essential so as not to compromise the soundproofing of your acoustic glass. DG 1500; DG Standard; Thermal Break; PD; DG 75; DG 80; DGL 80; DGL SUPER; Over Frame Vents. 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. Ex. This can be fiddly so it may be easier to cover the whole inside with acoustic foam before you start adding in the panels. The Greenwood Acoustic vents provides the perfect solution, delivering an effective level of air replacement while keeping out unwanted noise. This can cause health issues through humidity, such as dust mites and mould, or even impact on the long-term. Ones which are. Manufactured in the highest quality U. With replacement windows the general rule of thumb is to replace like for like. Find and specify trickle vents from top manufacturers with NBS Source. Colour Name: White. £3. Went to a neighbour who had new stuff put in a cpl years with acoustic lamination and it was perfect - virtually completely silent. 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. THIS AREA IS CURRENTLY BEING UPDATED – PLEASE FEEL FREE TO DOWNLOAD BROCHURE FOR FULL INFORMATION>. Aquwall HY are specifically designed to operate in conjunction with a routered airflow slot through the frame or sash. Greenwood Acoustic window ventilator (White ) Quantity. Optional internal acoustic extension. Internal and external grilles U. Windows and doors are vital for effective background and purge ventilation, but performance has to meet the specific demands of Part F. The SM 1000 Trickle Vent is a slim, unobtrusive trickle vent. Simon Air Management have been manufacturing and supplying ventilation and air management systems to the glazing and construction industries for over 50 years. The trickle vent is essentially a slit in the frame, staggered on the inside and outside, with a cover that can be opened and closed. Then simply cut a space in the foam to glue each panel in. Performance required. Trimvent® Select Xtra S13 FOR USE ON PVCU, TIMBER OR ALUMINIUM WINDOWS. Sunny Sussex. Take your pick from a wide choice of essential trickle vents, noise-reducing acoustic trickle vents and glazed-in louvre grilles, all available in a wide choice of sizes, specifications and colours, from leading brands RW Simon, Greenwood, Glazpart and Duco. 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. Any cooling of the internal temperature in winter from a trickle vent is marginal. 57 Ex. It can be fitted with an XC13 canopy or GS22 grille. A trickle vent is also included. Our range of acoustic window trickle vents provide a cost effective solution to suit the needs of noise polluted sites. 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. Over-head extract fan / trickle ventilator. Trickle vents are activated with a single finger and provides passive. 00 Standard Delivery 2-3 Working Days inc. Directs airflow upwards avoiding draughts and discomfort. External grille provides weather protection and insect ingress. A properly commissioned and installed MVHR system will meet the necessary building regulations relating to ventilation. A range of ventilation rates available. The smallest slotvent in the market 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. Addition of a wet room to an existing building: 5000mm2 EA. TAL4H&M- '9x3' Acoustic AirLiner® Set with Hit & Miss Ventilator (Up to 39dB Dn,e,w) Controllable air vent for background room ventilation. Welcome to the HandleStore range of trickle vents for the replacement of existing, tired, missing or broken slot vents found on double glazed windows. This is more representative of a design in the UK that relies on trickle vents for a natural ventilation solution. 2) Are they straightforward to retrofit, ie do i just unscrew my existing vent, slide in the new one and screw in to place or is there more to it. The latest addition to the Simon Acoustic Range - Please get in contact for more. VAT)*. Aereco develops innovative ventilation solutions for residential and office buildings with a key concept: the modulation of airflow rates according to. Natural daylight. Lockmaster 21 . [report] [news] Monday 29th January 2018. Reduces sound by 45 dB with internal grille fully open and 50 dB when closed (Dn,e,w). Free next day delivery available. Trickle vents built into the frame will allow noise to seep into the room even when the window is shut tight. SCHÜCO BY GSW VENTILATION VENT AWS VV. Browse our range of Trickle Vents & Canopies, available at IronmongeryDirect at Low Trade Prices. 1,394 posts. 14/10/19 - 13:35 #7. Are the trickle vents available in various colours? Product Type. An alternative is to install acoustic trickle vents. 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. Trimvent XC16 uPVC/Timber Window Vent - Canopy - 312 x 16mm - White. The major design criteria of Trickle Vents are ventilation capacity, controllability, actuation, thermal insulation, air permeability, water tightness, climatic adaptation, security, and acoustic. £9. Attenuated natural ventilation options. The acoustic Trickle Vents can also be powder coated to any standard RAL colour. Suitable for bedrooms and other rooms where low noise levels are a priority. Replacement Locks. You would also need trickle vents to meet the permanent ventilation requirement as per the building regulations. £2. The side-hung vents, which can reach from floor to ceiling, combine quick ventilation of rooms with a high degree of architectural design freedom. More about us. Product face sheet. Acoustically damped pipe fitted around unit to reduce external sources of noise such as traffic. WHITE 400mm Trickle vents from just £3. AirLiner: Extends from. Finish (inner and outer). Glazed-in, or overglass ventilators are custom-made to size and installed during fabrication to fit along the top of the sealed glass unit. Ex. Acoustic performance of 33 Db and an EA rating of 4600, the V4000 is great value and available from stock for next day delivery. £79. Buy As Trade Add to Basket. Trickle vents provide ventilation to any room without needing to open the window, which reduces external noise levels. 02 Please note the Vent Units or the Canopy Units can be fitted in conjunction with the Greenwood Acoustic window ventilator (White ) Quantity. Add to Basket. The RW Simon Ltd TTF Slimline window trickle ventilator is a through frame trickle ventilator that is a robust, yet stylish aluminium ventilator. Developed in 2 sizes the vents performance will be 5000. Please make any allowances for fittings beads, gaskets etc, or for manufacturing tolerances. 78 (ex. Available in 2 sizes: This vent 2500EA - 250mm (L) x 25mm (H) x 70mm (D) Internal/86mm (D) External. • Maintains the integrity of the rooms soundproofing. Ventilation is routed over the frame or head of the window. BV, BV - TV. The new regulations in regards to trickle vents just seems very backwards. Although it is important for modern homes to be well insulated, properties still require a certain amount of ventilation in order to avoid problems with condensation and damp. New higher equivalent area confirmed by the BRE. 5mm (5000EA) 438mm (5000EA) Illustrations show 2500EA version SF Xtra Sound Attenuator Vent Fixing and Operating Instructions BM504 Iss. Generally, to gain maximum performance, the size of the acoustic attenuator should be mirrored on the vent and canopy; and. Buy Yale branded products from Window Ware. Mantis 4 . Ventilation can be provided through any appropriate means. Internal hit & miss grille manually adjusted with an easy sliding. For use on timber and upvc windows and doors. Glidevale Protect TVES4dB Acoustic Energy Saver Humidity Sensitive Trickle Vent - Trickle Vent . Core drilled – suitable for retrofit installations. Our cutting-edge technology is used to assist people in their needs to curb noise pollution and to enjoy peace and quiet. timber or woodaluminiumclad window systems. VAT. - Enables secure, weather resistant ventilation with exclusion of.